Specifications
| Frequency | 60.0 Hz |
|---|---|
| Standby power | 15 kW |
| Standby kVA | 24 |
| Prime power | 15 kW |
| Oil capacity | 5.8 L |
| Alternator | Marathon 333CSA3024 (Class H insulation) |
| Voltage options | 120 V, 240 V |
| Phase | 1Ø |
| Rated current | 63 A |
| Power factor | 1.0 |
| Battery group | 24 |
| Battery cranking | 720 CCA |
| Battery voltage | 12 V |
| Battery quantity | 1 |
| Dry weight | 914 kg |
| Sound level | 71.0 dBA @ 23 m |
| Fuel tank | 216.0 L |
Engine
| Oil capacity | 5.8 L |
|---|---|
| Coolant capacity | 10.0 L |
| Displacement | 1.76 L |
| Aspiration | naturally aspirated |
| Rated speed | 1800 rpm |
Maintenance & consumables
for the Mitsubishi S4L2| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | — | find | |||
| Fuel filter | — | find | |||
| Oil filter | Change the engine oil and oil filter after the initial 50 hours of operation, then at the appropriate interval thereafter. | 0A45310244 | 250 hr | Amazon eBay $24.99 PartsGeek | |
| Belt | — | 1000 hr | find | ||
| Coolant | 4.5 Liter | — | 250 hr | ||
| Oil | 5.5 Liter | — | 250 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
Common questions
What is the power rating of the Generac MLT4150MV?
The Generac MLT4150MV is rated 15 kW standby (24.3 kVA).
What engine does the Generac MLT4150MV use?
The Generac MLT4150MV is powered by the Mitsubishi S4L2 engine.
What is the oil capacity of the Generac MLT4150MV?
The Mitsubishi S4L2 engine in the Generac MLT4150MV has an oil capacity of 5.8 liters.
What alternator does the Generac MLT4150MV use?
The Generac MLT4150MV uses a Marathon 333CSA3024 alternator. Insulation class H.
Troubleshooting
14Symptoms & 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. | |
| Unit cranks but does not start | Fuel level low, Verify fuel pump operation. | Check fuel level in tank. Inspect air filter for blockage. |
| Restricted air filter | Refer to OEM engine operator’s manual for additional information. | |
| Mast lights OFF but ballast Indicators ON | Light fixture is too hot, Faulty lamp connection. | Allow light to cool 10-15 minutes before restarting. Check that the lamp is tight in the socket. |
| Mast lights OFF and ballast indicators OFF | Loose lighting connections | Check connections inside control box and inside each ballast box. |
| Generator output incorrect | Incoming voltage to the ballast is incorrect, Engine speed may need to be adjusted. | Check the incoming voltage to the ballast by checking the available voltage on the GFCI receptacle. Incoming voltage should be 120V +/-5V. |
| Low transformer output | Perform capacitor check to determine if the capacitor or coil needs to be replaced. | |
| Mast lights ON but light output is low | Fixture and/or lens is dirty, Lamp worn due to normal use. | Clean reflective surface inside fixture and both inside and outside surface of glass lens. Replace lamp. |
| Damaged or loose electrical connections | Check the mast coil cord, mast junction box and mast light connections. |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.
Parts
36| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 002306 | Trailer Wheel Bearing Grease Zerk Fitting | Belt | PartsGeek | |
| 004550 | WARNING: Burn hazard. Lamps become extremely hot while in use. Allow 10–15 minutes for cooling before handling or lowering mast. Touching a hot lens or fixture can cause severe burns. | 2 | Glow plug | PartsGeek |
| 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 | PartsGeek | |
| 042419 | Extension Kit for Dinse-Style Cable Connectors Accepts #4 to #1/0 AWG cable. Used to adapt or extend weld and/or work cables. Kit includes one male Dinse-style plug and one in-line female Dinse-style receptacle. | Cable connector | PartsGeek | |
| 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 | PartsGeek | |
| 043947 | Fuel cap can be padlocked to prevent vandalism. A built-in flame arrestor prevents flames or sparks from entering the fuel tank. | 1 | Fuel filter | PartsGeek |
| 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. | Stick cable | PartsGeek | |
| 151086 | RCC-14 Remote Current Control* East/west 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 | PartsGeek | |
| 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. | Stick cable | PartsGeek | |
| 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 | PartsGeek | |
| 194744 | RFCS-14 HD Foot Control* Heavy-duty foot current control. Includes 20-foot (6 m) cord and 14-pin plug. | Remote control | PartsGeek 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 | PartsGeek | |
| 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 | PartsGeek | |
| 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 | PartsGeek | |
| 242211020 | RHC-14 Hand Control* Miniature hand current control. Dimensions: 4 x 4 x 3.25 inches (102 x 102 x 82 mm). Includes 20-foot (6 m) cord and 14-pin plug. | Remote control | PartsGeek | |
| 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 | PartsGeek |
| 300585 | FA-1D Lockable Flame Arrestor Fuel Cap | 1 | Fuel filter | PartsGeek |
| 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 | PartsGeek | |
| 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 | PartsGeek | |
| 301582 | Wireless Remote Hand Control* For remote current, voltage and contactor control. Receiver plugs directly into the 14-pin receptacle of Miller machine. Up to 300-foot (91.4 m) operating range. Wireless antenna kit 300749 is recommended. | Remote control | PartsGeek | |
| 301611 | Universal Connector Kits Tweco®-style receptacles 301595 Dinse-style receptacles Includes receptacles, wrench and electrical joint compound. | Cable connector | PartsGeek | |
| 907529 | Spectrum® 375 X-TREME™ See literature PC/9.2 | Plasma cutter | PartsGeek | |
| 907579 | Spectrum® 625 X-TREME™ with 12-foot (3.7 m) torch See literature PC/9.6 | Plasma cutter | PartsGeek | |
| 907579001 | Spectrum® 625 X-TREME™ with 20-foot (6.1 m) torch See literature PC/9.6 | Plasma cutter | PartsGeek | |
| 000139 | WARNING | Service part / kit | PartsGeek | |
| 000187 | AVERTISSEMENT Décharge électrique. Des tensions potentiellement mortelles sont générées par cet appareil. Assurez-vous que l’appareil est sécuritaire avant de le réparer ou d’en effectuer l’entretien. Le non-respect de cette consigne pourrait entraîner la mort ou des blessures graves. | Service part / kit | PartsGeek | |
| 000278 | WARNING | Service part / kit | PartsGeek | |
| 003983 | Breakers Located Behind The Panel | 1 | Service part / kit | PartsGeek |
| 004505 | Control Panel | Service part / kit | PartsGeek | |
| 004558 | Winch Assembly | 1 | Service part / kit | PartsGeek |
| 004621 | Unit Serial Number Locations | Service part / kit | PartsGeek | |
| 004622 | Component Locations | Service part / kit | PartsGeek | |
| 004625 | Control Panel | 3 | Service part / kit | PartsGeek |
| 119172 | 1-phase, 120/240 V, 50 A plug (NEMA 14-50P) to fit full KVA receptacle. | 1 | Service part / kit | PartsGeek |
| 195301 | Blue water-resistant cover with Miller logo resists stains and mildew, and protects the finish of your welder. | 1 | Service part / kit | PartsGeek |
| 209649 | Form: SFC626B | Service part / kit | PartsGeek |
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 | 5.1 | 1.35 |
Available documents
Owner's manual — A0000100009 (Generac)