The Mitsubishi S4L2-W461ML/4LE1-PV05 is a 1.76 L 4-cylinder liquid cooled, 4-stroke engine rated at 1800 rpm, producing up to 31.5 kW. It powers generator sets from Magnum, including the LR 114630-1.
Also known as: Mitsubishi/Isuzu S4L2-W461ML/4LE1-PV05
Part of the Mitsubishi S4L2 engine family — 8 variants share parts & fitment.
| Displacement | 1.76 L |
|---|---|
| Cylinders | 4 |
| Aspiration | liquid cooled, 4-stroke |
| Rated speed | 1800 rpm |
| Gross power | 31 kW |
Compiled from service & troubleshooting documentation across every generator set that uses the Mitsubishi S4L2-W461ML/4LE1-PV05.
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Clean Air Filter Element, replace if necessary | — | find | ||
| Fuel filter | Change the engine oil and filter after the first 50 hours of operation, then every 250 hours. | — | 260 hr | find | |
| Oil filter | Change the engine oil and filter after the first 50 hours of operation, then every 250 hours. | 30A4000103 | 260 hr | PartsGeek FridayParts $13.99 | |
| Belt | Check Alternator Belt, Replace Alternator Belt | — | find | ||
| Coolant | Change Engine Coolant | — | 2400 hr | ||
| Oil | Drain the fuel filter daily in rainy or humid conditions. | — |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
| Part # | Description | Category |
|---|---|---|
| 00149 | MAIN BREAKER | air_filter |
| 010005 | Air filter, Control box, Radiator, Document holder, Coolant overflow jug, Battery (behind panel), Starter (below muffler—on engine), Oil level indicator (dipstick), Muffler, Fuel filter | air_filter |
| 042418 | Dinse-Style Connector 50 mm (1 male) | cable_connector |
| 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 |
| 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 |
| 301611 | Universal Connector Kits Tweco®-style receptacles 301595 Dinse-style receptacles Includes receptacles, wrench and electrical joint compound. | cable_connector |
| 00230 | Prestart Checklist | emergency_stop_switch |
| 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. | 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 |
| 300585 | FA-1D Lockable Flame Arrestor Fuel Cap | fuel_filter |
| 00203 | GLOW PLUG | glow_plug |
| 00243 | Grease | grease |
| 010056 | Main circuit breaker, Engine ignition switch (key activated), Circuit breaker indicator light, Engine hours meter | main_circuit_breaker |
| 00175 | Mast Junction Box and Light Connections | mast_light_connections |
| 252782 | Engine Filter Kit Includes all filters required for proper engine maintenance. Oil filter, primary and secondary fuel filter, and primary air filter. | oil_filter |
| 010054 | Operator’s manual must be stored on machine | operator_manual |
| 000139 | ADVERTENCIA Riesgo de quemaduras. Espere a que el motor se enfríe antes de vaciar el aceite o el refrigerante. No hacerlo puede ocasionar la muerte o lesiones graves. | other_service |
| 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. | other_service |
| 000278 | WARNING | other_service |
| 00112 | Component Locations | other_service |
| 00124 | MLT5150MV • MLT5200IV • MLT5200IVCAN | other_service |
| 00159 | Light Tower Set Up | other_service |
| 00167 | Main Control Panel | other_service |
| 00186 | Raising the Mast | other_service |
| 00201 | ENGINE START SWITCH | other_service |
| 00202 | Starting the Unit | other_service |
| 00216 | Unit ID Tag | other_service |
| 00227 | VIN Tag | other_service |
| 002306 | Trailer Wheel Bearing Grease Zerk Fitting | other_service |
| 003983 | Breakers Located Behind The Panel | other_service |
| 004505 | Control Panel | other_service |
| 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. | other_service |
| 004558 | Winch Assembly | other_service |
| 004621 | Unit ID Tag | other_service |
| 004622 | Component Locations | other_service |
| 004625 | Control Panel | other_service |
| 010052 | other_service | |
| 042419 | SCREW RHM 10-32 X 4 | other_service |
| 043688 | RCCS-14 North/south fingertip control | other_service |
| 11275 | Decal, Magnum logo w/ web - red vinyl | other_service |
| 119172 | 1-phase, 120/240 V, 50 A plug (NEMA 14-50P) to fit full KVA receptacle. | other_service |
| 12141 | Decal set, LT eng/safety 4-lang | other_service |
| 12262 | Decal, 4000/5000 set up 4-lang (MW) | other_service |
| 12880 | Decal, instruction 4000/5000 4-lang (EW) | other_service |
| 151086 | RCC-14 Side-to-side (east/west) fingertip control | other_service |
| 194744 | RFCS-14 HD Heavy-duty foot control | other_service |
| 195196 | No. 2 Stick Cable Set | other_service |
| 195301 | Blue water-resistant cover with Miller logo resists stains and mildew, and protects the finish of your welder. | other_service |
| 209649 | Form: SFC626B | other_service |
| 242211020 | RHC-14 Hand Control | other_service |
| 301582 | Wireless Remote Controls 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. | other_service |
| 907529 | Spectrum® 375 X-TREME™ See literature PC/9.2 | plasma_cutter |
| 907579 | Spectrum® 625 X-TREME™ with 12-foot (3.7 m) torch See literature PC/9.6 | plasma_cutter |
| 907579001 | Spectrum® 625 X-TREME™ with 20-foot (6.1 m) torch See literature PC/9.6 | plasma_cutter |
| 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 |
| 301580 | Wireless Remote Controls Wireless Remote Foot Control For remote current and contactor control. Receiver plugs directly into the 14-pin receptacle of Miller machine. 90-foot (27.4 m) operating range. | remote_control |
| 00233 | GLOW PLUG | spark_plug |
| 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 |
| 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_set |
| 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_set |
| 009708 | Unit ID tag, Vehicle Identification Number (VIN) tag | unit_id_tag |
| 010053 | Warning: Hot surface, moving parts | warning_label |
Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.
Cross-referenced via Donaldson + OEM/engine-maker interchange — options to verify against your serial number, not confirmed for every exact variant.
Other equipment known to use this engine, via filter-application cross-reference — useful for sourcing parts even when your exact machine isn't listed elsewhere on this page.
The Mitsubishi S4L2-W461ML/4LE1-PV05 has a displacement of 1.76 liters with 4 cylinders.
The Mitsubishi S4L2-W461ML/4LE1-PV05 powers 1 generator set(s), including Magnum LR 114630-1.
The Mitsubishi S4L2-W461ML/4LE1-PV05 uses oil filter part numbers Mitsubishi 30A4000103, Donaldson P502007, Wix 51356.
The Mitsubishi S4L2-W461ML/4LE1-PV05 uses fuel filter part numbers Donaldson P550345, Ac Delco XD32.
The Mitsubishi S4L2-W461ML/4LE1-PV05 uses air filter part numbers Mitsubishi MD623028, Mitsubishi 91B6100800, Donaldson P821575.
A commonly reported issue on generators using the Mitsubishi S4L2-W461ML/4LE1-PV05 is: Mast lights off but ballast indicators on control panel are on. Cause: Mast light is too hot. Allow light to cool 10-15 minutes before restarting. Faulty bulb connection. Check that the bulb is tight in the socket..