Service parts for the M944
Grouped by system, with how many of each the parts manual calls for.
Air intake
1 requiredFuel system
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 |
| Prime power | 38 kW |
| Emissions | Tier II |
| Controller | S-3C |
| Oil capacity | 10.0 L |
| Alternator | M944W (4-pole, Class F insulation) |
| Voltage options | 120 V, 240 V |
| Phase | 1 |
| Rated current | 100 A |
| Power factor | 0.8 |
| Circuit breaker | 150 A |
| Battery group | Group 27 |
| Battery cranking | 800 CCA |
| Battery voltage | 12 V |
| Battery quantity | 1 |
| Coolant capacity | 10 L |
| Max ambient | 40 °C |
| Dimensions (L×W×H) | 1500×800×1000 mm |
| Dry weight | 300 kg |
| Sound level | 75.0 dBA @ 7 m |
| Fuel tank | 200.0 L |
| Tank runtime | 10 hr |
Engine
| Oil capacity | 10.0 L |
|---|---|
| Displacement | 3.3 L |
| Aspiration | Turbocharged |
| Rated speed | 1800 rpm |
Maintenance & consumables
for the Northern Lights L944| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Air cleaner | 24-01201 | 250 hr | Amazon eBay $44.99 NAPA $21.57 | |
| Fuel filter | 50/50 ethylene-glycol heavy-duty diesel engine coolant | 24-51201 | 2000 hr | Amazon eBay $33.57 NAPA $21.81 | |
| Fuel filter | secondary fuel filter | — | |||
| Oil filter | Secondary fuel filter | 24-51201 | 250 hr | Amazon eBay $33.57 NAPA $21.81 | |
| Battery | booster batteries | — | 500 hr | ||
| Belt | Drive belt | — | 500 hr | ||
| Coolant | 50/50 ethylene-glycol heavy-duty diesel engine coolant | — | 2000 hr | ||
| Oil | lube oil | — | 2000 hr | ||
| Spark plug | Glow plug | — | 500 hr |
Common questions
Which engine powers the Northern Lights M944?
The Northern Lights M944 is powered by the Northern Lights L944 engine.
What fuel does the Northern Lights M944 use?
The Northern Lights M944 runs on diesel.
What is the oil capacity of the Northern Lights M944?
The Northern Lights L944 engine in the Northern Lights M944 has an oil capacity of 10.0 liters.
What is the cooling system capacity of the Northern Lights M944?
The Northern Lights M944 cooling system holds 10 liters (2.6 US gallons) for the radiator system including the engine, per the manufacturer specification sheet.
How loud is the Northern Lights M944?
The Northern Lights M944 is rated at 75.0 dBA at 7 m, per the manufacturer specification sheet.
How much does the Northern Lights M944 weigh?
The Northern Lights M944 has a dry weight of 300 kg (661 lb).
What size fuel tank does the Northern Lights M944 have?
The Northern Lights M944 has a 200 liter (53 US gallon) fuel tank, giving about 10 hours of runtime.
What voltage does the Northern Lights M944 produce?
The Northern Lights M944 is offered in 120 V, 240 V, 1-phase.
What size battery does the Northern Lights M944 need?
The Northern Lights M944 uses 1 battery, 12 V each, 800 CCA, group Group 27, per the manufacturer specification sheet.
What alternator does the Northern Lights M944 use?
The Northern Lights M944 uses a M944W alternator. It has 4 poles. Insulation class F.
What oil filter fits the Northern Lights M944?
The Northern Lights M944 uses oil filter part number 24-51201.
What fuel filter does the Northern Lights M944 use?
The Northern Lights M944 uses fuel filter part number 24-51201.
What air filter fits the Northern Lights M944?
The Northern Lights M944 uses air filter part number 24-01201.
Troubleshooting
3Symptoms & remedies
| Symptom | Remedy |
|---|---|
| Temperature gauge above 205° F (96° C) | Shut off the engine immediately. Use the Trouble Shooting Guide on page 25 to isolate the cause of the overheat. Allow the engine to cool and then remove the cap slowly using protective clothing. Make repairs and restart after the temperature gauge registers below 200° F (94° C). Watch the temperature gauge regularly and turn off the unit if the temperature rises above 205° F (96° C). Repeat troubleshooting. |
| Engine oil consumption greater during break-in | Oil consumption is greater during break-in as piston rings take time to seat. Break-In Oil Changes: Change engine oil and filter at 50 hours. Change oil and filter again at 100 hours (consult Lubricants section for oil recommendation). |
| Engine does not start after 3 consecutive 20-second cranks | Remove the impeller from the seawater pump. This will prevent the muffler from fi lling with water and backfi lling the exhaust line and engine. Once the engine starts, shut if off immediately and reinstall the impeller. Restart and check the exhaust overboard outlet for gushes of water. |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.
Parts
31| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 24-21203 | Air filter (outer) | Air filter | Amazon eBay | |
| 24-21204 | Air filter (inner) | Air filter | Amazon eBay | |
| 32A0711700 | Side Seal | 2 | Seal | Amazon eBay |
| 3440711090 | Rear Main Crankshaft Seal | 1 | Seal | Amazon eBay |
| 0482623500 | Expansion Plug | 10 | Service part / kit | Amazon eBay |
| 185446219 | Flywheel, complete | 1 | Service part / kit | Amazon eBay |
| 32A0701501 | Dowel Pin | 2 | Service part / kit | Amazon eBay |
| 32A0702600 | Bolt, Bearing Cap | 10 | Service part / kit | Amazon eBay |
| 32A0741010 | Cylinder Block Assembly (includes keys 1- 16) | 1 | Service part / kit | Amazon eBay |
| 32A0744010 | Cylinder Block Assembly (includes keys 1- 16, 18-19) | 1 | Service part / kit | Amazon eBay |
| 32A09-00010 | Main Bearing Set, Standard | 1 | Service part / kit | Amazon eBay FridayParts $469.99 |
| 32A09-00020 | Main Bearing Set, Undersize 0.25 mm | 1 | Service part / kit | Amazon eBay FridayParts $469.99 |
| 32A09-00030 | Main Bearing Set, Undersize 0.50 mm | 1 | Service part / kit | Amazon eBay FridayParts $469.99 |
| 32A09-00040 | Main Bearing Set, Undersize 0.75 mm | 1 | Service part / kit | Amazon eBay FridayParts $469.99 |
| 32A2000014 | Crankshaft Assembly (M944W3, M30CW3, NL944D3, includes keys 2-5) | 1 | Service part / kit | Amazon eBay FridayParts $999.20 |
| 32A2002101 | Pulley (M944W3, M30CW3, & NL944D3) | 1 | Service part / kit | Amazon eBay |
| 32A2002203 | Pulley (M944T3 - M40C3 - NL944T3) | 1 | Service part / kit | Amazon eBay FridayParts $490.00 |
| 32A2100051 | Flywheel Assembly SAE #11-1/2 (M944T3 - M40C3 - NL944D3 & NL944T3, includes key 8) | 1 | Service part / kit | Amazon eBay |
| 32A2300101 | Gear (M944W3, M30CW3, & NL944D3) | 1 | Service part / kit | Amazon eBay |
| 32A2300301 | Gear (M944T3 - M40C3 - NL944T3) | 1 | Service part / kit | Amazon eBay |
| 32A2303500 | Idler Shaft | 1 | Service part / kit | Amazon eBay |
| 32B09-08101 | Thrust Bearing, Standard | 3 | Service part / kit | Amazon eBay FridayParts $469.99 |
| 32B09-08201 | Thrust Bearing, Oversize 0.15 mm | 3 | Service part / kit | Amazon eBay |
| 32B09-08301 | Thrust Bearing, Oversize 0.30 mm | 3 | Service part / kit | Amazon eBay |
| 32B1200301 | Flywheel Housing SAE #3 (M944T3, M40C3, NL944D3 & NL944T3) | 1 | Service part / kit | Amazon eBay |
| 3430702100 | Plug, Cam | 1 | Service part / kit | Amazon eBay FridayParts $68.25 |
| F284605000 | Dowel Pin | 2 | Service part / kit | Amazon eBay |
| F284610000 | Dowel Pin | 2 | Service part / kit | Amazon eBay |
| F285004008 | Spring Pin | 6 | Service part / kit | Amazon eBay |
| MF241282 | Bolt with washer | 10 | Service part / kit | Amazon eBay |
| ONL944 | Industrial Generator Set Component Locations | 7/13 | 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 | 50% | 10.0 | 3.5 |
| Prime | 100% | 12.34 | 3.26 |
| Standby | 50% | 10.0 | 3.5 |
Available documents
This page was generated from the 13 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.