Service parts for the MLT4150MV
Grouped by system, with how many of each the parts manual calls for.
Fuel 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 |
| Standby power | 15 kW |
| Prime power | 16 kW |
| Emissions | Tier 4 Final |
| Controller | Analog controls, Power Zone (if equipped), Power Zone Plus, Power Zone Plus (if equipped), Standard Analog |
| Oil capacity | 6.0 L |
| Alternator | Marathon 333CSA3024 |
| Voltage options | 120/240 V, 240 V |
| Phase | 1 |
| Rated current | 50 A |
| Power factor | 1 (1Ø) |
| Circuit breaker | 70 A |
| Battery group | 24 |
| Battery cranking | 440 CCA |
| Battery voltage | 12 V |
| Battery quantity | 1 |
| Coolant capacity | 4.3 L |
| Max ambient | 49 °C |
| Dimensions (L×W×H) | 2870×2710×7620 mm |
| Dry weight | 943 kg |
| Wet weight | 1126 kg |
| Sound level | 71.0 dBA @ 7 m |
| Fuel tank | 213.5 L |
| Tank runtime | 38 hr |
Engine
| Oil capacity | 8.0 L |
|---|---|
| Coolant capacity | 11.0 L |
| Displacement | 1.76 L |
| Aspiration | Natural |
| Rated speed | 1 rpm |
Maintenance & consumables
for the Mitsubishi S4L2| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Dry cartridge | — | |||
| Fuel filter | FA-1D Lockable Flame Arrestor Fuel Cap | 300585 | Amazon eBay | ||
| Oil filter | Change the engine oil and oil filter after the initial 50 hours of operation, then at the appropriate interval thereafter. | 0A45310244 | 1000 hr | Amazon $12.99 eBay $24.99 | |
| Battery | — | 250 hr | |||
| Belt | B | — | |||
| Coolant | — | 250 hr | |||
| Oil | — | 1000 hr | |||
| Spark plug | — | 1000 hr |
Compatible filters for the Mitsubishi S4L2 — cross-referenced via Donaldson. Options to verify against your serial number, not confirmed for this exact unit.
- Air filter: Donaldson P772579 Donaldson P775300 Wix 46652 Wix 46672
Service intervals
22| Item | Action | Hours | Months | Notes |
|---|---|---|---|---|
| Coolant level | Check | 8 hr | Daily or before use | |
| Electrical connections | Check | 8 hr | Daily or before use | |
| Fuel level | Check | 8 hr | Daily or before use | |
| Oil level | Check | 8 hr | Daily or before use | |
| Tire pressure | Check | 8 hr | Daily or before use | |
| Engine bolts and nuts | Adjust | 50 hr | First service — Initial 50 hours | |
| Engine oil and oil filter | Change | 50 hr | First service — Change after the initial 50 hours of operation, then at the appropriate regularly scheduled interval thereafter | |
| Engine oil and oil filter | Replace | 50 hr | First service — Initial 50 hours, then yearly or 100 hours | |
| Replace engine oil and oil filter | Change | 50 hr | First service — Mitsubishi engine, after initial 50 hours, then at regular interval thereafter | |
| Air cleaner | Check | 250 hr | Inspect | |
| Fuel filter | Replace | 250 hr | ||
| Belt and belt tension | Inspect | 400 hr | Inspect and adjust | |
| Fuel tank | Drain | 400 hr | Drain water from fuel tank | |
| Glow plugs | Check | 500 hr | Diesel engines | |
| Leveling jacks | Lubricate | 750 hr | ||
| Air cleaner element | Replace | 12 mo | Replace yearly, or after six cleanings, whichever occurs first (Mitsubishi engine guide) | |
| Jack Maintenance (lubricate gearing/handle) | Lubricate | 12 mo | Perform at least annually | |
| Replace air cleaner element | Replace | 12 mo | Kubota engine: yearly, or after six cleanings, whichever occurs first | |
| Trailer Wheel Bearings Lubrication | Lubricate | 12 mo | Minimum every 12 months or 12,000 miles (19,312 km) | |
| Trailer wheel bearings | Lubricate | 12 mo | Minimum recommended lubrication is every 12 months or 12,000 miles (19,312 km) | |
| Wheel lug nuts | Check | First service — Tighten to factory specifications after first 50 miles | ||
| Winch brake assembly | Clean | 6 mo | Clean and grease brake assembly per winch preventive maintenance schedule (semi-annually) |
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
14| Type | Item | Value | Unit | Condition |
|---|---|---|---|---|
| Pressure | Air pressure for cabinet cleaning | 40 | PSI (276 kPa) max | |
| Pressure | Engine oil pressure, normal operating | 35-80 | psi (241-552 kPa) | engine running |
| Temperature | Engine coolant temperature, normal operating | 100-230 | °F (38-110°C) | engine running |
| Temperature | High Coolant Temperature Shutdown Threshold | 210 | °F | 99°C |
| Torque | Wheel lug nuts - first pass | 20-25 | ft-lb (27-33 Nm) | star pattern |
| Torque | Wheel lug nuts - second pass | 50-60 | ft-lb (67-81 Nm) | star pattern |
| Torque | Wheel lug nuts - third pass | 90-120 | ft-lb (122-162 Nm) | star pattern |
| Torque | Wheel lug nuts, first pass | 20-25 | ft-lb (27-33 Nm) | first pass |
| Torque | Wheel lug nuts, second pass | 50-60 | ft-lb (67-81 Nm) | second pass |
| Torque | Wheel lug nuts, third pass | 90-120 | ft-lb (122-162 Nm) | third pass |
| Voltage | Engine/DC battery voltage (VBAT) | 13.5-15 | V | 12-volt system, engine running |
| Voltage | GFCI Outlet / Ballast Supply Voltage | 120 ±5 | V | |
| Voltage | Transformer Stabilized Voltage | 240-260 | VAC | after strike, drops then rises and stabilizes |
| Voltage | Transformer Strike Voltage | approximately 400 | VAC | when bulb strikes/induces an arc |
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% glycol, 50% water | below 49°C | Standard mixture; 60/40 and heated options available for cold weather | ||
| Coolant | 50% glycol, 50% water or 60% glycol, 40% water | below 49°C | Liquid cooled engines with standard 50/50 mixture or optional cold-weather 60/40 configuration | ||
| Coolant | 50/50 glycol/water or 60/40 | below 49°C | Liquid cooled diesel engines | ||
| Coolant | 40% water / 60% antifreeze | above -36°C | Freezing point -34°F (-36°C); maximum freeze protection is 60% antifreeze | ||
| Coolant | 50% water / 50% antifreeze | above -24°C | Freezing point -12°F (-24°C); mix demineralized/distilled water with coolant, not hard water | ||
| Engine oil | SAE 0W-20 Synthetic | below -18°C | For use below -0°F / -18°C | ||
| Engine oil | SAE 10W | From engine oil viscosity chart decal | |||
| Engine oil | SAE 15W-40 | From engine oil viscosity chart decal | |||
| Engine oil | SAE 30W | From engine oil viscosity chart decal | |||
| Engine oil | SAE 40W | From engine oil viscosity chart decal | |||
| Fuel | No. 2D diesel (above freezing) / No. 1D diesel (at or below freezing); climatized 1D/2D mix also usable in some areas | Ultra-low-sulfur diesel only | Do NOT use home heating oil or bio-diesel fuel | ||
| Fuel | Ultra-low-sulfur diesel No. 1D or No. 2D | No. 1D when at or below freezing; No. 2D when above freezing; climatized fuel acceptable | |||
| Fuel | Ultra-low-sulfur diesel; No. 1D below freezing, No. 2D above freezing (climatized 1D/2D blend acceptable in some areas) | 216.0 L | DO NOT use home heating oil or bio-diesel fuel | ||
| Grease | High quality grease made specifically for wheel bearing lubrication | Trailer wheel bearing lubrication, minimum every 12 months or 12,000 miles (19,312 km) |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Procedures
12Light Tower Setup installation
⚠ Verify area above unit is clear of overhead wires before raising the mast
- Position unit at ground level or higher than the area to be illuminated
- Place unit on firm, relatively flat ground (less than 5° slope) and block wheels
- Rotate the tongue jack 90° and raise the trailer tongue off the towing vehicle
- Use the grounding stud on the frame per NEC and local regulations
- Pull outrigger locking pins and extend outriggers until pins snap into place
- Rotate rear jack 90° and lower it, then level the trailer with all four jacks
- Adjust lamp aim by loosening trunnion wing nuts, then tighten hardware
Jack Maintenance maintenance
- Apply automotive grease to internal gearing via jack cover or grease fitting near crank (side-wind models)
- Rotate jack handle to distribute grease evenly
- Apply lightweight oil to handle unit at both sides of tube (side-wind models)
- Lubricate caster wheel axle bolt/nut assembly with lightweight oil if equipped
- Apply lightweight oil to screw stem (top-wind models)
RPM Quick Drain maintenance
Tools: RPM Quick Drain system hardware
- Convenient - no need to reach under machines
- Purges and extracts from the sump
- Evacuates sump directly to final containment via zero leak quick disconnect
- No spills, dripping filters, drain pans or intermediate containers needed
- Completes engine oil and filter change in less than 10 minutes
Trailer Wheel Bearing Lubrication maintenance
Tools: Grease gun
- Remove small rubber plug on grease cap
- Attach standard grease gun fitting to grease zerk fitting
- Pump grease until new grease is visible around gun nozzle
- Wipe excess grease from hub with clean cloth
- Replace rubber plug
Winch Preventive Maintenance maintenance
⚠ Replace cable immediately if damaged
⚠ Replace brake if slippage detected
- Check winch is free of dirt, oil, grease, water, and foreign substances
- Ensure all mounting bolts tightened to recommended torque values
- Check connections are securely tightened and free of corrosion
- Inspect cable for damage: cuts, knots, crushed or frayed portions, broken strands
- Check brake for slippage or drift by visual inspection when winch is under load
Lifting the Unit operation
- Verify lifting equipment has sufficient capacity for unit weight
- Close and lock all hoods and doors and stow the lights
- Verify the cradle locking pin is in place
- Attach slings, chains or hooks directly to the central lifting eye
- Use upper or lower forklift pockets with care, approaching perpendicular to the unit
Raising the Mast operation
⚠ Do not extend mast beyond the colored mark on the second mast section
- Set up and level the unit
- Check mast cables for wear or damage and verify centering in pulleys
- Press and hold the winch control toggle switch upward to extend mast to desired height
- Rotate the mast using the rotation knob at the base until lights face desired direction
Shutting Down the Unit operation
- Remove all loads from the outlets
- Switch individual light circuit breakers OFF
- Switch the main circuit breaker OFF
- Move the control power switch to STOP
Shutting Down the Unit - Standard Controls operation
- Remove all loads from the outlets
- Switch individual circuit breakers for each light OFF (O)
- Switch the main circuit breaker OFF (O)
- Move the control power switch to STOP
Starting the Engine - Analog Controls operation
⚠ Do not continuously crank engine for more than ten seconds
⚠ Never start the engine with circuit breakers switched on
- Verify main circuit breaker and individual light breakers are OFF (O)
- Turn key to GLOW PLUG position, hold 10-15 seconds until glow plug indicator turns red
- Turn key to START position, hold until engine cranks and starts
- Release key; it moves to RUN position
- Allow engine to reach normal operating temperature before switching on loads
Starting the Unit operation
⚠ Do not continuously crank engine for more than ten seconds
- Verify main circuit breaker and individual light breakers are OFF
- Turn key to GLOW PLUG position and hold five seconds or until indicator turns red
- Turn key to START position and hold until engine cranks and starts
- Release the key; it moves to RUN position
- Allow engine to reach normal operating temperature before switching on loads
Towing the Unit operation
⚠ Maximum recommended highway towing speed is 45 mph (72 km/h)
- Raise the rear jack and outrigger jacks fully into travel position
- Use the tongue jack to couple the trailer to the towing vehicle hitch and attach safety chains
- Lubricate the leveling jack grease fittings
- Connect trailer wiring and check directional/brake lights
- Verify mast cradle locking pin is secure and doors/enclosure are latched
- Check tire inflation and tighten wheel lugs in sequence per torque specification
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
How many kW is the Generac MLT4150MV?
The Generac MLT4150MV is rated 15 kW standby.
Which engine powers the Generac MLT4150MV?
The Generac MLT4150MV is powered by the Mitsubishi S4L2 engine.
What kind of fuel does the Generac MLT4150MV run on?
The Generac MLT4150MV runs on Diesel.
What is the oil capacity of the Generac MLT4150MV?
The Mitsubishi S4L2 engine in the Generac MLT4150MV has an oil capacity of 8.0 liters.
Which alternator is fitted to the Generac MLT4150MV?
The Generac MLT4150MV uses a Marathon 333CSA3024 alternator.
What oil filter fits the Generac MLT4150MV?
The Generac MLT4150MV uses oil filter part number 0A45310244.
What fuel filter fits the Generac MLT4150MV?
The Generac MLT4150MV uses fuel filter part number 300585.
Which air filter part number does the Generac MLT4150MV take?
The Generac MLT4150MV uses air filter part numbers Donaldson P772579, Donaldson P775300.
Troubleshooting
6Symptoms & remedies
| Symptom | Cause | Remedy |
|---|---|---|
| Low oil pressure shutdown | Low oil level | Verify oil level on dipstick. Add oil, if needed. |
| Oil leaking from engine | Visually inspect the engine for leaks. | |
| Oil pressure switch failure | Refer to OEM engine operator’s manual to identify corrective action. | |
| High coolant temperature shutdown | Low coolant level | Add coolant if needed. Allow engine to cool, then check coolant level in radiator. Restart engine and check coolant temperature. Stop engine immediately if coolant temperature is 210°F (99°C) or more. |
| Blockage in radiator | Inspect radiator shroud and ducting for blockage and remove any foreign matter. | |
| Leakage in coolant hoses, engine block, or water pump | Inspect for visible leaks. Verify tension of water pump serpentine drive belt. |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing. Full Generac MLT4150MV troubleshooting guide (23 entries) →
Parts
25| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 042418 | Dinse-Style Connector Kit Accepts #4 to #1/0 AWG cable. Kit includes one male Dinse-style plug which attaches to the work and/or weld cables and plugs into the Dinse-style receptacles on the power source. | Cable connector | Amazon eBay | |
| 043688 | RCCS-14 Remote Current Control* North/south rotary-motion fingertip control attaches to TIG torch using two hook-and-loop fasteners. Includes 26.5-foot (8 m) cord and 14-pin plug. | Remote control | Amazon eBay | |
| 043947 | FA-1D Lockable Flame Arrestor Fuel Cap Fuel cap can be padlocked to prevent vandalism. A built-in flame arrestor prevents flames or sparks from entering the fuel tank. | 1 | Fa 1d lockable flame arrestor fuel cap fuel cap can be padlocked to prevent vandalism a built in flame arrestor prevents flames or sparks from entering the fuel tank | Amazon eBay |
| 043952 | 2/0 Stick Cable Set, 100/50 ft. (30.5/15 m) Consists of 100-foot (30.5 m) 2/0 electrode cable with holder, and 50-foot (15 m) work cable with clamp. 300 A, 100% duty cycle. | 1 | Stick cable set | Amazon eBay |
| 173851 | 2/0 Stick Cable Set, 50 ft. (15 m) Consists of 50-foot (15 m) 2/0 electrode cable with holder, and 50-foot (15 m) work cable with clamp. 350 A, 100% duty cycle. | 1 | Stick cable set | Amazon eBay |
| 191981 | Tweco®-Style Connector Accepts #1/0 to #2/0 AWG cable. Kit includes one male Tweco-style plug which attaches to the work and/or weld cables and plugs into the Tweco-style receptacles on the power source. | Cable connector | Amazon eBay | |
| 194744 | RFCS-14 HD Foot Control* Heavy-duty foot current control. Includes 20-foot (6 m) cord and 14-pin plug. | Remote control | Amazon eBay KuduParts $30.00 | |
| 195196 | No. 2 Stick Cable Set, 15 ft. (4.6 m) Consists of 15-foot (4.6 m) No. 2 electrode cable with holder, and 15-foot (4.6 m) work cable with clamp. 200 A, 100% duty cycle. | Stick cable | Amazon eBay | |
| 195511 | PRHC-14 Hand Control* Complete current control brings 120 volts of GFCI power to work area in a single cord. Housed in a durable and light aluminum case and includes 125-foot (38 m) cord with plugs. | Remote control | Amazon eBay | |
| 210061 | Tweco®/Dinse Adapter One-piece adapter with a male Tweco-style plug (to power source) on one end and a female Dinse-style receptacle (for weld cable connection) on other end. | Cable connector | Amazon eBay | |
| 252782 | Engine Filter Kit Includes all filters required for proper engine maintenance. Oil filter, primary and secondary fuel filter, and primary air filter. | 1 | Oil filter | Amazon eBay $271.99 |
| 300585 | FA-1D Lockable Flame Arrestor Fuel Cap | 1 | Fuel filter | Amazon eBay |
| 300836 | No. 2 Stick Cable Set, 50 ft. (15 m) Consists of 50-foot (15 m) No. 2 electrode cable with holder, and 50-foot (15 m) work cable with clamp. 200 A, 100% duty cycle. | Stick cable | Amazon eBay | |
| 301580 | Wireless Remote Foot Control* For remote current control. Receiver plugs directly into the 14-pin receptacle of Miller machine. 90-foot (27.4 m) operating range. Wireless antenna kit 300749 is recommended. | Remote control | Amazon eBay | |
| 301611 | Universal Connector Kits Tweco®-style receptacles 301595 Dinse-style receptacles Includes receptacles, wrench and electrical joint compound. | Cable connector | Amazon eBay | |
| 907529 | Spectrum® 375 X-TREME™ See literature PC/9.2 | Plasma cutter | Amazon eBay | |
| 907579 | Spectrum® 625 X-TREME™ with 12-foot (3.7 m) torch See literature PC/9.6 | Plasma cutter | Amazon eBay | |
| 907579001 | Spectrum® 625 X-TREME™ with 20-foot (6.1 m) torch See literature PC/9.6 | Plasma cutter | Amazon eBay | |
| 042419 | SCREW RHM 10-32 X 4 | 4 | Service part / kit | Amazon eBay |
| 119172 | 1-phase, 120/240 V, 50 A plug (NEMA 14-50P) to fit full KVA receptacle. | 1 | Service part / kit | Amazon eBay |
| 151086 | RCC-14 Remote Contactor and Current Control | Service part / kit | Amazon eBay | |
| 195301 | Blue water-resistant cover with Miller logo resists stains and mildew, and protects the finish of your welder. | 1 | Service part / kit | Amazon eBay |
| 209649 | Form: SFC626B | 1 | Service part / kit | Amazon eBay |
| 242211020 | RHC-14 Hand Control | 1 | Service part / kit | Amazon eBay |
| 301582 | Wireless Remote Hand Control - Wireless antenna kit 300749 recommended | 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 |
|---|---|---|---|
| Continuous | 1.14 | 0.301 | |
| Continuous | 100% | 2.23 | 0.59 |
| Prime | 5.1 | 1.35 | |
| Prime | 100% | 2.23 | 0.59 |
| Standby | 1.14 | 0.301 | |
| Standby | 100% | 2.23 | 0.59 |