Service parts for the M20C
Grouped by system, with how many of each the parts manual calls for.
Air intake
1 requiredOil system
1 requiredPrices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.
Specifications
| Fuel | diesel |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 16 kW |
| Emissions | Tier 2 |
| Controller | DC Logic System |
| Oil capacity | 8.0 L |
| Alternator | Stamford/AvK BCI |
| Voltage options | 120/240 V, 120 V, 110/220 V, 240 V, 110 V |
| Phase | 1 Phase Std./3 Phase Opt. |
| Rated current | 83.0 A |
| Power factor | [0.8, 1.0] |
| Battery voltage | 12 Volt V |
| Coolant capacity | 4.8 L |
| Max ambient | 50 °C |
| Dimensions (L×W×H) | 1213×533×838 mm |
| Dry weight | 403 kg |
Engine
| Oil capacity | 8.2 L |
|---|---|
| Coolant capacity | 3.6 L |
| Displacement | 2.216 L |
| Aspiration | Natural |
| Rated speed | 1800 rpm |
Maintenance & consumables
for the Northern Lights 844L| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Air filter element (M16C, M20CL) | 24-20001 | Amazon eBay $40.00 | ||
| Fuel filter | Every 500 hours | 24-52020 | 500 hr | Amazon eBay $24.71 NAPA $15.34 | |
| Fuel filter | Primary fuel filter - complete unit (Racor type water separator) | 24-50002 | Amazon eBay | ||
| Oil filter | Lube oil filter | 24-03100 | 250 hr | Amazon eBay $23.45 NAPA $12.88 | |
| Battery | Check and maintain battery as required by the manufacturer's recommendations. | — | 250 hr | ||
| Belt | Inspect and replace belts as needed. V-belts: 120 hours; Fan belts: 600 hours. | — | 120 hr | ||
| Coolant | Replace coolant as required by the manufacturer's recommendations. | — | 2500 hr | ||
| Oil | Change oil and filter as required by the manufacturer's recommendations. | 8.2 | — | 250 hr | |
| Spark plug | Replace spark plugs every 1,000 hours or as required by the manufacturer's recommendations. | — | 1500 hr |
Service intervals
30| Item | Action | Hours | Months | Notes |
|---|---|---|---|---|
| Battery electrolyte | Check | 50 hr | First service — After first 50 hours and every 50 hours (SP18) | |
| Cylinder head bolts | Adjust | 50 hr | First service — Re-tighten head bolts after first 50 hours (see pg. 14) | |
| Engine oil | Change | 250 hr | First service — After first 50 hours | |
| V-belt tension | Check | 50 hr | First service — After first 50 hours (SP5) | |
| Valve clearances | Adjust | 50 hr | First service — After first 50 hours | |
| Valves | Adjust | 50 hr | First service — SP6 - After first 50 hours | |
| Radiator (industrial only) | Clean | 100 hr | EVERY 100 HOURS (SP16); check and clean radiator fins | |
| Primary fuel filter element | Change | 200 hr | EVERY 200 HOURS (SP8) | |
| Air cleaner | Check | 250 hr | SP4; more often in dusty conditions | |
| Batteries | Check | 250 hr | SP19 - Check state of charge of batteries with hydrometer | |
| Batteries | Test | 250 hr | Check condition of batteries with hydrometer | |
| Batteries state of charge | Check | 600 hr | Hydrometer check (SP19) | |
| Engine oil and filter | Change | 250 hr | First service — SP2/SP3 - Every 250 hours | |
| Lube oil filters | Change | 250 hr | First service — SP3; also at 100 hours then every 250 hours | |
| Exhaust elbow | Inspect | 500 hr | SP22 - Inspect condition | |
| Primary fuel filter element (Racor) | Change | 500 hr | SP8; as often as necessary | |
| Secondary fuel filter | Change | 500 hr | SP9 - Every 500 hours | |
| Cooling system | Clean | 600 hr | 12 mo | EVERY 600 HOURS or every 12 months, whichever comes first; check and flush (SP14) |
| Impeller (seawater pump, marine) | Change | 600 hr | EVERY 600 HOURS or as needed (SP17) | |
| Air cleaner element | Change | 1000 hr | SP4 | |
| Impeller in raw water pump | Change | 1000 hr | SP17; or as needed | |
| Injectors | Check | 1000 hr | SP11 - Check every 1000 hours by dealer | |
| Raw water pump impeller | Change | 1000 hr | SP17 - Every 1000 hours or as needed | |
| Valve clearances | Check | 1000 hr | SP6 - Every 1000 hours | |
| Injection nozzles | Clean | 1500 hr | ||
| Heat exchanger (marine only) | Clean | 2400 hr | EVERY 2400 HOURS; also once a year (SP15) | |
| Cooling system | Check | 2500 hr | SP14; check and flush | |
| Cooling system | Other | 2500 hr | 12 mo | SP14 - Check and flush cooling system; every 2500 hours or 12 months |
| Fuel injection pump | Check | 2500 hr | SP12 - Pump settings, max/idle speed and exhaust smoke | |
| Heat exchanger | Clean | 2500 hr | 12 mo | SP15; or once a year |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Service specifications
52| Type | Item | Value | Unit | Condition |
|---|---|---|---|---|
| Clearance | Heat rejection to jacket coolant (M844K2) | 1018 | BTU/min | 60 Hz |
| Clearance | Heat rejection to jacket coolant (M844LK2) | 1273 | BTU/min | 60 Hz |
| Clearance | V-belt deflection | 3/16 | in | at midpoint between crankshaft and alternator pulleys |
| Gap | V-belt tension (deflection at midpoint between crankshaft and alternator pulleys) | 3/16 | in. (5 mm) | thumb pressure |
| Gap | V-belt tension (deflection at midpoint between crankshaft and alternator pulleys) | about 3/16 | in. (5 mm) | |
| Other | Exhaust Gas Temperature | 1022 | °F (550° C) | |
| Other | Maximum Exhaust Backpressure | 48 | in (1219 mm) H2O | |
| Other | V-belt deflection | 3/16 in. (5 mm) | in. (mm) | thumb pressure at midpoint between crankshaft and alternator pulleys |
| Pressure | Coolant filler cap pressure valve release | 7 | PSI (0.5 bar) | |
| Pressure | Coolant filler cap pressure valve release | approximately 7 | PSI (0.5 bar) | |
| Pressure | Coolant filler cap release pressure | approximately 7 PSI (0.5 bar) | PSI (bar) | |
| Pressure | Coolant filler cap relief valve | 7 | PSI | |
| Pressure | Engine oil pressure | above 15 PSI; normal reading 20-60 PSI | PSI | engine running, gauges monitored often |
| Pressure | Engine oil pressure (normal operating, Series 3-4 panels) | 20-60 | PSI | after a few seconds of operation |
| Pressure | Minimum oil pressure | 15 | PSI | must be above 15 PSI while running |
| Pressure | Oil pressure | 20 - 60 | PSI | Normal reading after a few seconds of operation |
| Pressure | Oil pressure (minimum) | above 15 | PSI | Series 3 and Series 4 Control Panels while operating |
| Pressure | Oil pressure (minimum, operating) | above 15 | PSI | |
| Pressure | Oil pressure (normal) | 20 - 60 | PSI | |
| Pressure | Oil pressure shutdown | 14.2 | psi (1.0 Kg/ccm) | |
| Pressure | Recommended pressure cap | 12.7 | psi (0.9 kg/ccm) | |
| Speed | Rated RPM / Frequency | 1500 / 50Hz | RPM / Hz | |
| Speed | Rated RPM / Frequency | 1800 / 60Hz | RPM / Hz | |
| Temperature | Engine coolant temperature (marine) | below 200 | °F | |
| Temperature | Maximum coolant temperature | 230 | degrees F (110 degrees C) | |
| Temperature | Normal coolant temperature | 167° to 194°F (75°C to 90°C) | °F (°C) | normal operation |
| Temperature | Shutdown temperature (marine) | above 205 | °F | |
| Temperature | Standard thermostat modulating range | 179-194 | degrees F (82-90 degrees C) | |
| Temperature | Water temperature gauge | below 200 | °F (94°C) | Marine sets, operating |
| Temperature | Water temperature gauge (normal / shut off above) | 200 / 205 | °F (94 / 97°C) | must be below 200°F (94°C) |
| Temperature | Water temperature gauge limit (marine) | below 200°F (94°C) | °F (°C) | normal operation |
| Temperature | Water temperature shutdown | above 205 | °F (96°C) | Marine units |
| Temperature | Water temperature shutdown limit (marine) | above 205°F (96°C) | °F (°C) | shut off engine immediately |
| Torque | Cylinder head bolts | 65.1-68.7 | ft/lbs (9.0-9.5 kg/m) | cold; tighten in 2 passes, final pass at specified torque |
| Torque | Delivery lines at injectors | 11 - 18 | ft./lbs | |
| Torque | Delivery lines at injectors | 11-18 | ft./lbs | |
| Torque | Delivery lines at injectors | 11-18 ft./lbs. | ft/lbs | |
| Torque | Fuel injector | 44-51 | ft/lbs (6 to 7 Kgm) | |
| Torque | Injector | 44 - 51 | ft/lbs (6 to 7 kgm) | |
| Torque | Injector | 44 - 51 ft/lbs (6 to 7 kgm) | ft/lbs (kgm) | |
| Torque | Injector return line retaining bolts | 22-30 | ft/lbs | |
| Torque | Return line retaining bolts | 22 - 30 | ft/lbs | |
| Torque | Return line retaining bolts | 22 - 30 ft/lbs | ft/lbs | |
| Torque | Rocker arm cover nuts | 5 - 8 | ft/lbs (0.8 - 2.3 kg/m) | |
| Torque | Rocker arm cover nuts | 5 - 8 ft/lbs (0.8 - 2.3 kg/m) | ft/lbs (kg/m) | |
| Valve clearance | Intake and exhaust valve clearance | 0.008 | in. (0.2 mm) | cold, engine NOT running, after head bolts retightened |
| Valve clearance | Intake and exhaust valve clearance | 0.008 in. (0.2 mm) | in. (mm) | engine cold, NOT running |
| Valve clearance | Intake and exhaust valves | 0.008 | in. (0.2 mm) | Engine cold and NOT running |
| Valve clearance | Valve clearance (intake and exhaust, rocker arm to valve guide) | 0.008 | in | cold, engine NOT running |
| Voltage | D.C. voltmeter reading | 11 - 15 | volts | at 80°F (25°C) ambient temperature |
| Voltage | D.C. voltmeter reading | 11-15 | volts | at 80°F (25°C) ambient temperature |
| Voltage | D.C. voltmeter reading | between 11 and 15 volts | VDC | at 80°F (25°C) ambient temperature |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Recommended fluids
| Fluid | Grade | Standard | Ambient | Capacity | Notes |
|---|---|---|---|---|---|
| Coolant | 50% distilled water / 50% ethylene glycol antifreeze mix | Antifreeze mixture recommended as a good year-round coolant | |||
| Coolant | 50% water / 50% ethylene glycol antifreeze mix | Recommended as a good year-round coolant | |||
| Engine oil | SAE 5-20W | API Service CC/CD/SF multi-viscosity | below -23°C | Below -10°F (-23°C) multi-viscosity; some increase in oil consumption may be expected | |
| Engine oil | SAE 5W | API Service CC/CD/CE or CC/CD/SF | below -23°C | Below -10°F (-23°C). Multi-viscosity alternative SAE 5-20W. | |
| Engine oil | SAE 5W (single viscosity) / SAE 5-20W (multi-viscosity) | API Service CC/CD/CE single viscosity oils; API Service CC/CD/SF multi-viscosity oils | below -23°C | Below -10°F (-23°C); some increase in oil consumption may be expected | |
| Engine oil | SAE 5W single viscosity / SAE 5-20W multi-viscosity | API Service CC/CD/CE single viscosity oils; API Service CC/CD/SF multi-viscosity oils | below -23°C | Below -10°F (-23°C); use Service CC 30 weight oil during the first 100 hours | |
| Engine oil | SAE-5W | API Service CC/CD/CE single viscosity | below -23°C | Below -10°F (-23°C) single viscosity | |
| Engine oil | SAE 10-30W | API Service CC/CD/SF multi-viscosity | -23°C to 0°C | -10 to 32°F (-23 to 0°C) multi-viscosity | |
| Engine oil | SAE 10W | API Service CC/CD/CE or CC/CD/SF | -23°C to 0°C | -10 to 32°F (-23 to 0°C). Multi-viscosity alternative SAE 10-30W. | |
| Engine oil | SAE 10W (single viscosity) / SAE 10-30W (multi-viscosity) | API Service CC/CD/CE single viscosity oils; API Service CC/CD/SF multi-viscosity oils | -23°C to 0°C | -10 to 32°F (-23 to 0°C) | |
| Engine oil | SAE 10W single viscosity / SAE 10-30W multi-viscosity | API Service CC/CD/CE single viscosity oils; API Service CC/CD/SF multi-viscosity oils | -23°C to 0°C | -10 to 32°F (-23 to 0°C) | |
| Engine oil | SAE-10W | API Service CC/CD/CE single viscosity | -23°C to 0°C | -10 to 32°F (-23 to 0°C) single viscosity | |
| Engine oil | SAE 15-40W | API Service CC/CD/SF multi-viscosity | above 0°C | Above 32°F (0°C) multi-viscosity | |
| Engine oil | SAE 30W | API Service CC/CD/CE (single viscosity) or CC/CD/SF (multi-viscosity) | above 0°C | 8.2 liter | Above 32°F (0°C). Multi-viscosity alternative SAE 15-40W. Crankcase capacity including oil filter 2.1 gal (8.2 liter) for 844k/844Lk. |
| Engine oil | SAE 30W (single viscosity) / SAE 15-40W (multi-viscosity) | API Service CC/CD/CE single viscosity oils; API Service CC/CD/SF multi-viscosity oils | above 0°C | Above 32°F (0°C) | |
| Engine oil | SAE 30W single viscosity / SAE 15-40W multi-viscosity | API Service CC/CD/CE single viscosity oils; API Service CC/CD/SF multi-viscosity oils | above 0°C | 8.2 liters | Above 32°F (0°C) |
| Engine oil | SAE-30W | API Service CC/CD/CE single viscosity | above 0°C | 2.1 gal (8.2 liters) | Above 32°F (0°C) single viscosity |
| Fuel | Grade No. 1 diesel | ASTM D975 | below 0°C | Use below freezing and for all temperatures above 5,500 ft (1500 m) | |
| Fuel | Grade No. 2 diesel above freezing 32°F (0°C); Grade No. 1 below freezing and above 5,500 ft. (1500 meters) | ASTM designation D975 for diesel fuels; cetane number minimum of 45; sulphur less than 1% (preferably less than 0.5%) | Do not use domestic heating oils, Class B engine, Class D domestic fuels, Class E/F/G/H industrial or marine fuels, ASTM-D975-60T No. 4-D and higher number fuels | ||
| Fuel | No. 1 diesel | ASTM D975 | below 0°C | Below freezing and for all temperatures at an altitude above 5,500 ft (1500 m). | |
| Fuel | Grade No. 2 diesel | ASTM D975 | above 0°C | Use above freezing 32°F (0°C); cetane minimum 45; sulphur less than 1% (preferably less than 0.5%) | |
| Fuel | Grade No. 2 diesel above freezing; Grade No. 1 below freezing and at altitudes above 5,500 ft. (1500 meters) | ASTM designation D975; sulphur less than 1% (preferably less than 0.5%); cetane number minimum of 45 | above 0°C | Do not use domestic heating oils, Class B, Class D, Class E/F/G/H industrial or marine fuels, or ASTM-D975-60T No. 4-D and higher | |
| Fuel | No. 2 diesel | ASTM D975 | above 0°C | Above freezing 32°F (0°C). Sulphur less than 1% (preferably less than 0.5%); cetane minimum 45. |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Procedures
12Retightening cylinder head bolts adjustment
Tools: Torque wrench
- Retighten the head bolts after the first 50 hours.
- Tighten bolts when the engine is cold.
- Loosen the valve cover and remove the rocker arm cover.
- Tighten head bolts with a torque wrench in the sequence shown, evenly in 1 or 2 passes.
- Tighten to specified torque in final pass.
SP6 Valve Clearances adjustment
⚠ Valve adjustments should be done after the cylinder head bolts have been re-tightened.
Tools: adjustment screw, lock nut wrench
- Adjust valve clearance after 1000 hours or as needed; engine must be cold and NOT running.
- Turn the engine over by hand until the inlet valve starts to open and exhaust starts to close (valves rocking).
- Turn the crankshaft one more full turn; align the top mark of the crank pulley with the top mark of the timing gear case.
- Loosen the lock nut and adjust clearance between rocker arm and valve guide with the adjustment screw.
- Clearance on both intake and exhaust valves should be 0.008 in. (0.2 mm).
- Repeat for each cylinder; each set of valves must be adjusted individually.
- Replace the rocker arm cover and tighten cover nuts to 5 - 8 ft/lbs (0.8 - 2.3 kg/m).
Valve Clearance Adjustment adjustment
Tools: Adjustment screw, Lock nut, Wrench
- Adjust valve clearance after the first 50 hours of operation and every 1000 hours thereafter.
- Valve adjustments should be done after the cylinder head bolts have been re-tightened; engine should be cold and NOT running.
- Watch the valves while turning the engine over by hand until the inlet valve starts to open and the exhaust valve starts to close.
- Turn the crankshaft one more full turn and adjust the clearance on both valves for this cylinder.
- Loosen the lock nut and adjust clearance between the rocker arm and valve guide of both intake and exhaust valves with the adjustment screw.
- Clearance on both intake and exhaust valves should be 0.008 in. (0.2 mm).
- Repeat steps for each cylinder; each set of valves must be adjusted individually.
- Replace the rocker arm cover. Tighten cover nuts to 5 - 8 ft/lbs (0.8 - 2.3 kg/m).
Valve clearance adjustment (SP6) adjustment
- Readjust valve clearance after first 50 hours of operation and every 600 hours thereafter.
- Valve adjustments should be done after the cylinder head bolts have been retightened.
- Engine should be cold and NOT running.
- Turn engine by hand until inlet valve starts to open and exhaust valve starts to close.
- Turn crankshaft one more full turn and adjust clearance on both valves for this cylinder.
- Loosen lock nut and adjust clearance between rocker arm and valve guide with adjustment screw.
- Repeat for each cylinder; each set of valves must be adjusted individually.
- Replace rocker arm cover.
Check glow plugs diagnostic
Tools: D.C. test bulb
- Loosen the current carrying flat wire between the plus-poles of the glow plugs.
- Connect a D.C. test bulb between the plus-pole of the battery and the plus-pole of the glow plug.
- If the bulb lights up, the glow plug is functioning properly.
- Check all glow plugs and replace any faulty ones.
Checking glow plugs diagnostic
Tools: DC test bulb
- Loosen the current carrying flat wire between the plus-poles of the glow plugs.
- Connect a DC test bulb between the plus-pole of the battery and the plus-pole of the glow plug.
- If the bulb lights up, the glow plug is functioning properly.
- Check all glow plugs and replace any faulty ones.
Glow Plug Check diagnostic
Tools: D.C. test bulb
- Loosen the current carrying flat wire between the plus-poles of the glow plugs.
- Connect a D.C. test bulb between the plus-pole of the battery and the plus-pole of the glow plug.
- If the bulb lights up, the glow plug is functioning properly.
- Check all glow plugs and replace any faulty ones.
Glow Plug Testing diagnostic
Tools: D.C. test bulb
- Loosen the current carrying flat wire between the plus-poles of the glow plugs.
- Connect a D.C. test bulb between the plus-pole of the battery and the plus-pole of the glow plug.
- If the bulb lights up, the glow plug is functioning properly.
- Check all glow plugs and replace any faulty ones.
Shutdowns and Alarms diagnostic
⚠ Do not remove the water fill cap of an overheated engine; escaping steam can cause severe burns.
- Check the temperature gauge; if above 205°F (96°C) shut off the engine immediately.
- Use the Troubleshooting Guide to isolate the cause of the overheat.
- Make repairs and restart after the temperature gauge registers below 200°F (94°C).
- If shutdown activated with normal temperature, check crankcase oil level.
- If oil level is low, fill with recommended oil and restart, watching oil pressure (20-60 PSI).
- If oil level is normal, do NOT restart the engine; call your dealer.
Shutdowns and Alarms Response diagnostic
⚠ Do not remove the water fill cap of an overheated engine. Escaping high temperature steam can cause severe burns.
- Check the temperature gauge; if above 205°F (96°C), shut off the engine immediately.
- Use the Trouble Shooting Guide to isolate the cause of the overheat.
- Make repairs. Restart the Marine set after the temperature gauge registers below 200°F (94°C).
- Watch the temperature gauge regularly and turn off the unit if temperature rises above 205°F (96°C).
- If shutdown is activated and temperature is normal, check the engine crankcase oil level.
- If oil level is low, fill with recommended lubricating oil and restart; watch the oil pressure gauge.
- If the oil level is normal, DO NOT restart the engine. Call your dealer for assistance.
Air Cleaner Service maintenance
⚠ Make absolutely sure no impurities enter the engine while changing the element.
⚠ Do NOT run the engine with the air cleaner removed.
- Inspect air cleaner every 250 hours; in dusty conditions check more often.
- Marine sets: if dirty, wash element in soapy water; rinse and dry thoroughly before re-installing. Replace if necessary.
- C-Series sets: the element cannot be cleaned; replace it when necessary.
Bleeding the Fuel System maintenance
⚠ Escaping diesel fuel under pressure can penetrate skin causing serious personal injury.
⚠ Use a piece of cardboard or wood, rather than hands, to search for suspected leaks.
⚠ If injured by escaping fuel, see a doctor at once.
Tools: Hand primer, Cardboard or wood
- Loosen bleed bolt “A” on top of the filter.
- Pump hand primer “B” on fuel lift pump until pure fuel (no bubbles) escapes from bleed bolt “A”. Tighten bleed screw “A”.
- Loosen bleed screw “C”. Pump hand primer “B” until pure fuel escapes. Then tighten bleed screw “C”.
- If the engine does not start, loosen a fuel line at the injector while cranking until pure fuel escapes; tighten. Do each line one-at-a-time.
- After the engine has started, use a piece of cardboard to look for fuel leaks.
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Voltage reconnection
| Voltage | Phase | Connection | Leads | Notes |
|---|---|---|---|---|
| 110/190 | 3 | wye | Optional voltages (Wye) (NL844L) | |
| 110/220 | 1 | zig zag | Optional voltage (NL844L) | |
| 115/230 | 1 | zig zag | Optional voltage (NL844L) | |
| 120/208 | 3 | wye | Standard low voltage (NL844L); also listed in optional voltages (Wye) | |
| 120/240 | Optional voltages (GEN) (NL844L); standard output 1 phase, 1.0 power factor | |||
| 120/240 | 1 | zig zag | Optional voltage (NL844L) | |
| 127/220 | 3 | wye | Standard low voltage (NL844L); also listed in optional voltages (Wye) | |
| 139/240 | 3 | wye | Optional voltages (Wye) (NL844L) | |
| 220/380 | 3 | wye | Standard high voltage (NL844L); also listed in optional voltages (Wye) | |
| 240/416 | 3 | wye | Optional voltages (Wye) (NL844L) | |
| 254/480 | 3 | wye | Optional voltages (Wye) (NL844L) | |
| 277/480 | 3 | wye | Standard high voltage (NL844L) |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Common questions
What size generator is the Northern Lights M20C?
The Northern Lights M20C is rated 16 kW standby.
Which engine powers the Northern Lights M20C?
The Northern Lights M20C is powered by the Northern Lights 844L engine.
What fuel does the Northern Lights M20C use?
The Northern Lights M20C runs on diesel.
How much oil does the Northern Lights M20C take?
The Northern Lights 844L engine in the Northern Lights M20C has an oil capacity of 8.2 liters.
What is the coolant capacity of the Northern Lights M20C?
The Northern Lights M20C cooling system holds 4.8 liters (1.3 US gallons) for the radiator system including the engine, per the manufacturer specification sheet.
What is the dry weight of the Northern Lights M20C?
The Northern Lights M20C has a dry weight of 403 kg (888 lb).
What voltages is the Northern Lights M20C available in?
The Northern Lights M20C is offered in 120/240 V, 120 V, 110/220 V, 240 V, 110 V, 1 Phase Std./3 Phase Opt.-phase.
What alternator comes on the Northern Lights M20C?
The Northern Lights M20C uses a Stamford/AvK BCI alternator.
What oil filter does the Northern Lights M20C use?
The Northern Lights M20C uses oil filter part number 24-03100.
What fuel filter fits the Northern Lights M20C?
The Northern Lights M20C uses fuel filter part numbers 24-52020, 24-50002.
What air filter does the Northern Lights M20C use?
The Northern Lights M20C uses air filter part number 24-20001.
Troubleshooting
6Symptoms & remedies
| Symptom | Cause | Remedy |
|---|---|---|
| Battery will not charge | Loose or corroded connections | Clean and tighten battery connections |
| Battery will not charge | Sulfated or worn out batteries | Check specific gravity of each battery; Check electrolyte level of each battery |
| Battery will not charge | Loose or defective alternator belt | Adjust belt tension; Replace belt |
| Starter inoperative | Check DC circuit breaker | If the breaker is tripped, reset it |
| Starter inoperative | Loose or corroded connections | Clean and tighten loose battery and harness plug connection |
| Starter inoperative | Low battery output | Check specific gravity of each battery; Check electrolyte level of each battery |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing. Full Northern Lights M20C troubleshooting guide (96 entries) →
Repair guides
34- Before starting checks
- Booster Battery Connection
- Change fuel filters
- Changing engine oil (SP2)
- Changing the lube oil filter (SP3)
- Changing the raw water pump impeller (SP17)
- Check glow plugs
- Checking glow plugs
- Checking oil level
- Clean heat exchanger (marine)
- Glow Plug Check
- Glow Plug Testing
- Injector installation (SP11)
- Oil Changes
- Replace raw water pump impeller (marine)
- Shutdowns and Alarms Response
- SP1 Checking Oil Level
- SP11 Injector Removal and Installation
- SP13 Check the Coolant Level
- SP14 Cooling System Flushing
Step-by-step procedures compiled from the Northern Lights service manual for this model.
Parts
250| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 00-35406 | Gas/Water Separator | Fuel filter | eBay | |
| 025100008 | Seal Washer, Air Bleed Screw | 2 | Seal | Amazon eBay |
| 025100010 | Seal Washer | 2 | Seal | Amazon eBay |
| 025100012 | Seal Washer - Industrial | 2 | Seal | Amazon eBay |
| 025100016 | Seal Washer | 1 | Seal | Amazon eBay |
| 050209083 | Oil Seal | 1 | Seal | Amazon eBay $30.00 FridayParts $34.59 |
| 052100030 | O-ring | 1 | Seal | Amazon eBay |
| 052100050 | O-ring | 1 | Seal | Amazon eBay |
| 052100070 | O-ring | 1 | Seal | Amazon eBay |
| 052100100 | O-Ring | 2 | Seal | Amazon eBay |
| 052100150 | O-Ring | 1 | Seal | Amazon eBay |
| 052100400 | O-ring | 1 | Seal | Amazon eBay $6.95 |
| 052109072 | O-Ring | 1 | Seal | Amazon eBay $13.95 |
| 052109074 | Gasket | 1 | Gasket | Amazon eBay $14.95 |
| 052109076 | O-ring | 1 | Seal | Amazon eBay |
| 052109078 | O-ring, Relief Valve | 1 | Seal | Amazon eBay |
| 052300400 | O-ring | 1 | Seal | Amazon eBay |
| 052300600 | O-Ring | 1 | Seal | Amazon eBay |
| 052300700 | O-ring, Gear Case Cover | 1 | Seal | Amazon eBay $10.95 |
| 054109013 | Gasket | 1 | Gasket | Amazon eBay |
| 080109061 | Drive Belt (formerly #080109061) | 1 | Belt | Amazon eBay |
| 080109080 | Drive Belt (formerly #080109080) | 1 | Belt | Amazon eBay FridayParts $55.00 |
| 11-12005 | Oil Fill Neck Gasket | 1 | Gasket | Amazon eBay |
| 11-13101 | Gasket, Thermostat Cover | 1 | Gasket | Amazon eBay |
| 11-28101 | Gasket | 1 | Gasket | Amazon eBay |
| 11-38101 | Gasket / Exhaust Manifold Gasket | 1 | Gasket | Amazon eBay |
| 110996600 | Gasket | 1 | Gasket | Amazon eBay |
| 110996860 | Gasket | 1 | Gasket | Amazon eBay |
| 111147200 | Head Gasket (formerly #111147200) | 1 | Gasket | Amazon eBay |
| 111147460 | Head Gasket; t = 0.5mm | 1 | Gasket | Amazon eBay FridayParts $36.00 |
| 111147520 | Head Gasket; t = 1.3 mm (844) | 1 | Gasket | Amazon eBay FridayParts $45.99 |
| 111147581 | Head Gasket; t = 0.4 mm (844L & M20CR, formerly #111147580) | 1 | Gasket | eBay |
| 111147591 | Head Gasket; t = 0.5 mm (844L & M20CR, formerly #111147590) | 1 | Gasket | eBay FridayParts $36.00 |
| 111996401 | Gasket, Head Cover | 1 | Gasket | Amazon eBay $19.00 |
| 111996410 | Gasket, Rocker Arm Cover | 1 | Gasket | Amazon eBay |
| 120406050 | Valve Guide Seal - Exhaust | 3 | Seal | Amazon eBay FridayParts $31.49 |
| 120406070 | Valve Guide Seal - Intake | 3 | Seal | Amazon eBay $15.95 FridayParts $31.49 |
| 130306190 | Fuel Filter Assembly | 1 | Fuel filter | Amazon eBay $69.99 FridayParts $34.80 KuduParts $55.00 |
| 130326051 | Gasket | 5 | Gasket | Amazon eBay |
| 130506140 | Feed Pump Assembly | 1 | Pump | Amazon eBay $99.99 FridayParts $33.08 |
| 130516069 | Gasket | 4 | Gasket | Amazon eBay $6.95 |
| 130516089 | Gasket | 1 | Gasket | Amazon eBay |
| 130516101 | Gasket | 1 | Gasket | eBay |
| 130556750 | Pipe | 1 | Hose | Amazon eBay |
| 130556760 | Pipe | 1 | Hose | Amazon eBay |
| 130996070 | Gasket | 1 | Gasket | Amazon eBay |
| 130996130 | Gasket | 1 | Gasket | Amazon eBay $15.00 |
| 131017600 | Injection Pump Assembly | 1 | Pump | Amazon eBay $425.00 |
| 131186110 | Gasket | 4 | Gasket | Amazon eBay |
| 131226130 | O-Ring | 4 | Seal | Amazon eBay |
| 131226180 | O-ring | 1 | Seal | Amazon eBay |
| 131227240 | O-Ring | 8 | Seal | Amazon eBay |
| 131296255 | Gasket | 2 | Gasket | Amazon eBay |
| 131406360 | Injector Assembly | 4 | Injector | Amazon eBay $189.95 KuduParts $58.00 FridayParts $61.50 |
| 131416170 | Nozzle | 1 | Injector | Amazon eBay FridayParts $75.99 |
| 131426160 | Gasket | 1 | Gasket | Amazon eBay $1.00 |
| 131426200 | Gasket | 3 | Gasket | Amazon eBay $9.95 |
| 131426230 | Gasket | 1 | Gasket | Amazon eBay $7.00 |
| 131507450 | Injection Line #1 | 1 | Hose | Amazon eBay |
| 131507460 | Injection Line #2 | 1 | Hose | Amazon eBay |
| 131507470 | Injection Line #3 | 1 | Hose | Amazon eBay |
| 131507480 | Injection Line #4 | 1 | Hose | Amazon eBay |
| 131507520 | Injection Line #1 | 1 | Hose | Amazon eBay |
| 131507530 | Injection Line #2 | 1 | Hose | Amazon eBay |
| 131507540 | Injection Line #3 | 1 | Hose | Amazon eBay |
| 131507550 | Injection Line #4 | 1 | Hose | Amazon eBay |
| 131606560 | Return Line | 1 | Hose | Amazon eBay |
| 131606620 | Return Line | 1 | Hose | Amazon eBay |
| 135597330 | Intake Hose | 1 | Hose | Amazon eBay |
| 135996480 | Gasket | 1 | Gasket | Amazon eBay |
| 135996530 | Gasket | 1 | Gasket | Amazon eBay |
| 135996550 | Gasket | 1 | Gasket | Amazon eBay $19.46 |
| 135996600 | Gasket | 1 | Gasket | Amazon eBay |
| 135996720 | Gasket | 1 | Gasket | Amazon eBay |
| 135996780 | Gasket, Ind. Exhaust Manifold | 1 | Gasket | eBay FridayParts $22.30 |
| 135996900 | Gasket | 1 | Gasket | eBay |
| 135996950 | Gasket, Air Intake Mounting | 1 | Gasket | eBay |
| 140406360 | Suction Filter | 1 | Oil filter | Amazon eBay |
| 140606701 | Oil Line | 1 | Hose | Amazon eBay |
| 140606710 | Drain Hose (Marine application only) | 1 | Hose | Amazon eBay |
| 140606720 | Oil Pipe (844 & 16C) | 1 | Hose | Amazon eBay |
| 140607020 | Oil Pipe (844L & 20CL) | 1 | Hose | Amazon eBay |
| 140996260 | Gasket | 4 | Gasket | Amazon eBay |
| 140996270 | Gasket, Valve Assembly | 4 | Gasket | Amazon eBay $7.95 |
| 145016890 | Coolant Pump Assembly (earlier) | 1 | Pump | Amazon eBay |
| 145016891 | Coolant Pump Assembly (formerly #145016890) | 1 | Pump | Amazon eBay |
| 145017350 | Coolant Pump Assembly | 1 | Pump | Amazon eBay |
| 145017780 | Coolant Pump Assembly (includes keys #2 - 5) | 1 | Pump | eBay |
| 145206022 | Thermostat | 1 | Thermostat | Amazon eBay FridayParts $14.44 |
| 145206180 | Thermostat 82° | 1 | Thermostat | Amazon eBay FridayParts $16.50 |
| 145206182 | Thermostat 1800F/ 82°C | 1 | Thermostat | eBay FridayParts $16.50 |
| 145536050 | Hose | 1 | Hose | Amazon eBay KuduParts $16.00 |
| 145536640 | Hose, Radiator Outlet | 1 | Hose | Amazon eBay |
| 145536870 | Hose, Radiator Inlet | 1 | Hose | Amazon eBay $25.00 |
| 145537260 | Hose, Radiator Inlet | 1 | Hose | eBay |
| 145537270 | Hose, Radiator Outlet | 1 | Hose | eBay $39.99 |
| 145546510 | Hose | 1 | Hose | Amazon eBay |
| 145996050 | Gasket | 1 | Gasket | Amazon eBay |
| 145996051 | Gasket, Thermostat Cover | 1 | Gasket | eBay |
| 145996360 | Gasket | 1 | Gasket | Amazon eBay $12.95 |
| 145996370 | Gasket | 1 | Gasket | Amazon eBay |
| 145996460 | Gasket | 1 | Gasket | Amazon eBay |
| 145996670 | Gasket | 1 | Gasket | eBay |
| 145996680 | Gasket | 1 | Gasket | Amazon eBay $12.95 |
| 16-13101 | O-ring | 1 | Seal | Amazon eBay $9.95 |
| 16-15010 | O-Ring | 1 | Seal | Amazon eBay |
| 16-70001 | O-ring | 1 | Seal | Amazon eBay |
| 16-90001 | O-ring | 1 | Seal | Amazon eBay |
| 165996110 | Gasket | 1 | Gasket | Amazon eBay |
| 165996351 | Gasket | 1 | Gasket | Amazon eBay FridayParts $35.97 |
| 165996361 | Gasket | 1 | Gasket | Amazon eBay FridayParts $17.98 |
| 18-11906 | Vent Hose | 1 | Hose | eBay |
| 18-12006 | Hose 5/16" ID x 26" Polyvinyl | 1 | Hose | eBay |
| 18-13107 | Formed Hose | 1 | Hose | Amazon eBay |
| 18-13108 | Hose 3/4" ID x 18-1/2" | 1 | Hose | Amazon eBay |
| 18-13109 | Overflow Hose 5/16" ID x 25" | 1 | Hose | Amazon eBay |
| 18-15408 | Hose Assembly 1/4” ID x 15” | 1 | Hose | eBay |
| 18-28101 | Air Intake Hose (earlier) | 1 | Hose | Amazon eBay |
| 18-28102 | Air Intake Hose | 1 | Hose | Amazon eBay |
| 18-52007 | Hose 1/4" ID x 26" | 2 | Hose | Amazon eBay |
| 18-52113 | Hose Assembly 1/4" ID x 26-1/2" | 1 | Hose | Amazon eBay |
| 18-52205 | Hose 1/4"ID x 13" | 1 | Hose | Amazon eBay |
| 18-58101 | Hose Assembly 1/4" ID x 17" (844) | 1 | Hose | Amazon eBay |
| 18-58401 | Hose Assembly 1/4" ID x 26" (844L) | 1 | Hose | Amazon eBay |
| 185246011 | Oil pressure unit | 1 | Sensor | Amazon eBay $22.50 FridayParts $11.20 |
| 185366060 | Glow Plug, 12 Volt | 3 | Glow plug | Amazon eBay $120.38 FridayParts $29.93 |
| 185366100 | Glow Plug, 24 Volt | 3 | Glow plug | Amazon eBay |
| 185416480 | Brush | 2 | Brush | eBay |
| 185446277 | Regulator Assembly | 1 | Avr | eBay |
| 185816120 | Switch Assembly | 1 | Sensor | Amazon eBay |
| 185816240 | Solenoid Assembly | 1 | Sensor | Amazon eBay |
| 19-00064 | Hose Clamp #64 (for tank mounting) | 2 | Hose | Amazon eBay |
| 195906940 | Gasket Set - Industrial | 1 | Gasket | Amazon eBay |
| 195907340 | Gasket Set – Industrial (includes keys #1 - #40) | 1 | Gasket | eBay |
| 198636160 | Oil Seal, Front | 1 | Seal | Amazon eBay FridayParts $32.00 |
| 198636170 | Oil Seal | 1 | Seal | Amazon eBay FridayParts $14.80 |
| 198996060 | Gasket | 7 | Gasket | Amazon eBay |
| 198996071 | Gasket | 4 | Gasket | Amazon eBay |
| 22-10003 | Coolant Level Switch Gauge, Isolated Ground | 1 | Sensor | Amazon eBay |
| 22-40236 | Oil Pressure Switch | 1 | Sensor | eBay |
| 22-40334 | D.C. Voltage Regulator 12 Volt | 1 | Avr | Amazon eBay |
| 22-40352 | Dual Station Temperature Sender 250°F | 1 | Sensor | eBay |
| 22-40353 | Dual Station Temperature Sender 250°F | 1 | Sensor | eBay |
| 22-40358 | Temperature Switch 95°C | 1 | Sensor | eBay |
| 22-41016 | Oil Pressure Sender | 1 | Sensor | Amazon eBay $66.00 |
| 22-41051 | Toggle Switch | 2 | Sensor | Amazon eBay |
| 22-42055 | Sender, Water Temperature - Single Station | 1 | Sensor | Amazon eBay $35.00 |
| 22-42803 | Oil Pressure Sender | 1 | Sensor | Amazon eBay |
| 22-44810 | Sender, Water Temperature - Single Station | 1 | Sensor | eBay |
| 22-71016 | Sender, Oil Pressure - Dual Station | 1 | Sensor | Amazon eBay |
| 22-71026 | Sender, Water Temperature - Dual Station | 1 | Sensor | Amazon eBay |
| 22-71214 | Overspeed Switch | Sensor | eBay | |
| 22-74803 | Sender, Oil Pressure - Dual Station | 1 | Sensor | eBay $14.95 |
| 22-90007 | Preheat / Shutdown - Bypass Switch | 1 | Sensor | Amazon eBay |
| 22-90008 | Engine Control Switch | 1 | Sensor | Amazon eBay |
| 24-01201 | Lube oil filter | 1 | Oil filter | Amazon eBay $44.99 NAPA $21.57 |
| 24-02002 | Oil Filter | 4 | Oil filter | Amazon eBay $21.99 NAPA $23.67 |
| 24-03100 | Lube oil filter | 1 | Oil filter | Amazon eBay $23.45 NAPA $12.88 |
| 24-20001 | Air Filter | 1 | Air filter | Amazon eBay $40.00 |
| 24-22009 | Element, Air Filter | 1 | Air filter | Amazon eBay |
| 24-23100 | Air cleaner element | Air filter | Amazon eBay FridayParts $193.84 | |
| 24-27302 | Element | 1 | Air filter | Amazon eBay $25.45 |
| 24-28101 | Air Filter Element | 1 | Air filter | Amazon eBay |
| 24-28401 | Air cleaner element (C-Series) | 1 | Air filter | Amazon eBay |
| 24-50002 | Primary fuel filter (Racor) complete unit | Fuel filter | Amazon eBay | |
| 24-50012 | Primary fuel filter element | Fuel filter | Amazon eBay NAPA $65.23 | |
| 24-50013 | Primary Fuel Filter/Separator | Fuel filter | eBay | |
| 24-50014 | Fuel filter | Fuel filter | eBay NAPA $56.45 | |
| 24-52020 | Fuel Filter | 1 | Fuel filter | Amazon eBay $24.71 NAPA $15.34 |
| 25-11216 | Impeller | 1 | Impeller | Amazon eBay $199.95 |
| 25-12017 | Spline Seal | 1 | Seal | Amazon eBay |
| 25-12057 | Raw Water Pump | 1 | Pump | Amazon eBay $582.42 FridayParts $381.16 |
| 25-12060 | Impeller | 1 | Impeller | Amazon eBay $28.99 |
| 25-12065 | Lip Seal | 1 | Seal | Amazon eBay $15.00 |
| 25-12066 | Mechanical Seal | 1 | Seal | Amazon eBay $40.46 |
| 25-12067 | O-Ring | 1 | Seal | Amazon eBay $6.95 NAPA $5.07 |
| 26-71003 | Electric Fuel Pump 12V | Pump | eBay | |
| 26-71004 | Electric Fuel Pump 24V | Pump | eBay | |
| 27-12004 | Tube 5/16" ID x 30" Polyurethane | 1 | Hose | eBay |
| 27-13101 | Tube Assembly | 1 | Hose | Amazon eBay |
| 29-08100 | Gasket Set - Marine | 1 | Gasket | Amazon eBay |
| 29-08401 | Gasket Set – Marine (includes all keys) | 1 | Gasket | eBay |
| 314531057 | Gasket | 1 | Gasket | Amazon eBay |
| 314531061 | Gasket | 1 | Gasket | Amazon eBay |
| 314531065 | Air Filter Element | 1 | Air filter | Amazon eBay |
| 314531125 | Seal Washer | 1 | Seal | Amazon eBay |
| 314531127 | Element (marked #314531065) | 1 | Air filter | Amazon eBay $100.00 NAPA $69.76 |
| 314990030 | Gasket, Elbow | 1 | Gasket | Amazon eBay |
| 340460141 | RW Pump Drive Gear | 1 | Pump | eBay $210.00 |
| 36-72002 | Hand Pump | 1 | Pump | Amazon eBay |
| 37-11205 | Low water level switch | Sensor | eBay | |
| 37-40010 | Oil Pressure Gauge, 0-80 PSI | 1 | Sensor | Amazon eBay $49.00 |
| 37-40011 | Engine Temperature Gauge, 0-250° F | 1 | Sensor | Amazon eBay |
| 37-40012 | DC Voltmeter, 12 Volt | 1 | Sensor | Amazon eBay |
| 37-40014 | DC Voltmeter, 24 Volt | 1 | Sensor | Amazon eBay |
| 37-71215 | Low oil level switch | Sensor | eBay | |
| 38-08120 | Standard spare kit for M844DW3/G | Air filter | eBay | |
| 38-08130 | World class spare parts kit for M844DW3/G | Glow plug | eBay | |
| 385720101 | Thermoswitch | 1 | Sensor | Amazon eBay $19.58 FridayParts $19.90 |
| 385720110 | Temperature Switch 95°C | 1 | Sensor | Amazon eBay |
| 385720230 | PERKINS WATER TEMPERATURE SENSOR | 1 | Sensor | Amazon eBay |
| 40-02003 | Drive Belt | 1 | Belt | Amazon eBay $89.42 |
| 40-02004 | Drive Belt (with 24V/35A alternator) | 1 | Belt | Amazon eBay |
| 40-02005 | Drive Belt | 1 | Belt | Amazon eBay |
| 40-08401 | Drive Belt | 1 | Belt | Amazon eBay |
| 40-08403 | Drive Belt (M-844L & M-20CL) | 1 | Belt | Amazon eBay |
| 40-08404 | Drive Belt (with 24V/ 35A alternator) | 1 | Belt | Amazon eBay |
| 40-08405 | Drive Belt (with 24V/35A alternator: Bertram spec) | 1 | Belt | Amazon eBay |
| 40-74500 | Drive Belt (formerly #40-74500) | 1 | Belt | Amazon eBay |
| 40-74501 | Drive Belt (844L & M20CR, formerly #40-08404) | 1 | Belt | eBay |
| GLOW-PLUG-10 | Glow plug | 1 | Glow plug | Amazon eBay |
| ONL844W3 | Air Filter | 1 | Air filter | Amazon eBay |
| V-BELT-16X1.5 | V-belt | 1 | Belt | buy |
| W843-844-2 | Manual | 1 | Manual | Amazon eBay |
| 00-02003 | Wear Sleeve; Repair Type | ** | Service part / kit | Amazon eBay |
| 00-02004 | Wear Sleeve; Repair Type | ** | Service part / kit | Amazon eBay |
| 00-35400 | Water Lift Type Muffler | Service part / kit | eBay | |
| 00-71614 | Grommet 1-5/8"ID x 2-1/4"OD | 2 | Service part / kit | Amazon eBay |
| 00-73146 | Lifting Eye | 1 | Service part / kit | Amazon eBay |
| 05-70049 | Extrusion, vertical | 4 | Service part / kit | Amazon eBay |
| 05-70051 | Extrusion, horizontal, sides | 2 | Service part / kit | Amazon eBay |
| 05-70052 | Extrusion, horizontal, ends | 2 | Service part / kit | Amazon eBay |
| 10-12002 | Remote Expansion Tank (Includes key #16) | 1 | Service part / kit | Amazon eBay |
| 110666060 | Vent Filter | 1 | Service part / kit | Amazon eBay $29.31 |
| 110666090 | Filter | 2 | Service part / kit | Amazon eBay |
| 12-00031 | Capscrew, Hex Head M6 x 1.0 x 25 mm | 2 | Service part / kit | Amazon eBay |
| 12-00712 | Capscrew, Hex Head M8 x 1.25 x 25 mm | 2 | Service part / kit | Amazon eBay |
| 12-00751 | Capscrew, Hex Head M8 x 1.25 x 16 mm | 4 | Service part / kit | Amazon eBay |
| 130516084 | Diaphragm | 1 | Service part / kit | Amazon eBay $122.33 |
| 135406230 | Muffler Element | 1 | Service part / kit | Amazon eBay |
| 14-04803 | Hex Nut, Nylock M6 x 1.0 | 2 | Service part / kit | Amazon eBay |
| 145306550 | Cooling Fan | 1 | Service part / kit | Amazon eBay FridayParts $49.99 |
| 145506480 | Heat Exchanger Element (earlier) | 1 | Service part / kit | Amazon eBay |
| 15-00008 | Flat Washer M6 | 2 | Service part / kit | Amazon eBay |
| 15-00701 | Flat Washer M8 | 3 | Service part / kit | Amazon eBay |
| 15-00702 | Lock Washer, Helical M8 | 1 | Service part / kit | Amazon eBay |
| 185206082 | Stop Solenoid, 12 Volt - Standard Ground | 1 | Service part / kit | Amazon eBay $98.95 FridayParts $32.25 |
| 185206190 | Stop Solenoid, 12 Volt - Isolated Ground | 1 | Service part / kit | Amazon eBay |
| 185206200 | 24 Volt Solenoid | 1 | Service part / kit | Amazon eBay |
| 185416300 | Brush | 2 | Service part / kit | Amazon eBay |
| 185446165 | Spring | 2 | Service part / kit | Amazon eBay |
| 185446187 | Regulator Assembly | 1 | Service part / kit | Amazon eBay |
| 185446253 | Rectifier Assembly | 1 | Service part / kit | Amazon eBay |
| 185446276 | Rectifier Assembly | 1 | Service part / kit | eBay |
| 185846360 | Brush Holder Assembly | 1 | Service part / kit | Amazon eBay |
| 185846361 | Spring Brush / Brush Spring | 4 | Service part / kit | Amazon eBay |
| 20-18101 | Heat Exchanger Element | 1 | Service part / kit | Amazon eBay |
| 21-00010 | Bushing, Steel 3/8NPT x 1/4NPT | 1 | Service part / kit | Amazon eBay |
| 21-00135 | Bushing, Brass 1/2NPT x 1/4NPT | 1 | Service part / kit | Amazon eBay |
| 21-00701 | Flat Washer M8 | 1 | Service part / kit | Amazon eBay |
Service, wear & replacement parts referenced for this model and its engine — confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.
Fuel consumption
| Rating | Load | L/h | gal/h |
|---|---|---|---|
| Prime | 5.3 | 1.4 | |
| Prime | 100% | 4.65 | 1.23 |
Available documents
Spec sheet — M20CR (Northern Lights)Operator's manual — O844 (Northern Lights)Operator's manual — OM844W2 (Northern Lights)Owner's manual — O844K (Northern Lights)Owner's manual — OM844K2 (Northern Lights)Parts manual — P844-2-I (Northern Lights)Parts manual — P844 (Northern Lights)Parts manual — filter chart guide (Northern Lights)Parts manual — p844k-i (Northern Lights)
This page was generated from the 9 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.