Service parts for the MLT6
Grouped by system, with how many of each the parts manual calls for.
Oil 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 | 6 kW |
| Standby kVA | 6 |
| Prime power | 8 kW |
| Emissions | 4 Final |
| Controller | Power Zone–DLA (If Equipped), PowerZone–DLA |
| Oil capacity | 4.7 L |
| Alternator | Marathon 201CSA5423 |
| Voltage options | 120 V, 240 V |
| Phase | 1Ø |
| Rated current | 50 (120V) / 25 (240V) A |
| Power factor | 1 |
| Circuit breaker | 30 A |
| Battery group | 24 |
| Battery cranking | 440 CCA |
| Battery voltage | 12 V |
| Battery quantity | 1 |
| Coolant capacity | 4.3 L |
| Max ambient | [120, 104] °C |
| Dimensions (L×W×H) | 3000×2600×700 mm |
| Dry weight | 594 kg |
| Wet weight | 726 kg |
| Sound level | 63.0 dBA @ 7 (23 ft) m |
| Fuel tank | 154.5 L |
| Tank runtime | 67 hr |
Engine
| Oil capacity | 5.0 L |
|---|---|
| Coolant capacity | 4.3 L |
| Displacement | 0.95 L |
| Aspiration | Natural |
| Rated speed | 1800 rpm |
Filters for the Mitsubishi L3E
2Engine-mounted filters the filter manufacturers list for this engine family. These come from the engine, not from this generator set’s own parts list, so confirm against your serial number before ordering.
| System | Filter | Description | Cross-references | |
|---|---|---|---|---|
| Oil filter | P502007 | Lube Filter, Spin-On Full Flow | MITSUBISHI 30A4000100, MITSUBISHI 30A4000100A, NAPA 67356, BALDWIN B1402 | FridayParts $13.99 |
Listed for this engine in only one kind of machine, so they may depend on how the engine was installed:
| System | Filter | Description | Cross-references | |
|---|---|---|---|---|
| Fuel / water separator | P551423 | Fuel Filter, Water Separator Spin-On | MITSUBISHI D070001, NAPA 3531, NAPA 600091, NAPA 600092 | KuduParts $18.00 FridayParts $20.00 |
Maintenance & consumables
for the Mitsubishi L3E| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Control panel access door | — | |||
| Fuel filter | — | 1000 hr | |||
| Oil filter | Full flow, spin-on type | 7665025430 | 1000 hr | Amazon eBay $22.12 PartsGeek $7.98 NAPA $13.30 | |
| Battery | Disconnect | — | |||
| Belt | — | 1000 hr | |||
| Coolant | 4.3 | — | 800 hr | ||
| Coolant filter | — | ||||
| Oil | 5.2 | — | 1000 hr | ||
| Spark plug | — | 1000 hr |
Compatible filters for the Mitsubishi L3E — cross-referenced via Donaldson. Options to verify against your serial number, not confirmed for this exact unit.
- Air filter: Kubota K318182240 Kubota K318182250 Donaldson P778979 Donaldson P780018 Wix 49978
Service intervals
10| Item | Action | Hours | Months | Notes |
|---|---|---|---|---|
| Battery condition | Inspect | 1 hr | Mitsubishi schedule | |
| Leveling jacks | Lubricate | 1 hr | As required (Mitsubishi) / 750 hr (Kubota) | |
| Belt and belt tension | Adjust | 750 hr | First service — First 50 Hr (Mitsubishi) | |
| Load Bank Resistor resistance | Test | 750 hr | 30 Ohm ± 10% (Mitsubishi) | |
| Oil | Change | 1000 hr | MLT6SMDS, MLT6SMD, MLT6SK, MLT6SM | |
| Oil filter | Replace | 1000 hr | First service — Maximum service interval | |
| Wheel bearing lubrication | Lubricate | 12 mo | or 12,000 miles (19,312 km) | |
| Wheel bearing play check | Check | 6 mo | Jack up trailer and check for play | |
| Winch brake assembly | Clean | 6 mo | Semi-annually; clean and grease | |
| Winch motor brushes | Inspect | 6 mo | 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
5| Type | Item | Value | Unit | Condition |
|---|---|---|---|---|
| Other | Load Bank Resistor resistance | 30 | Ohm ± 10% | |
| Torque | Wheel lug nuts, first pass | 20-25 | ft-lbs (27-33 Nm) | first pass |
| Torque | Wheel lug nuts, second pass | 50-60 | ft-lbs (67-81 Nm) | second pass |
| Torque | Wheel lug nuts, third pass | 90-120 | ft-lbs (122-162 Nm) | third pass |
| Voltage | Battery voltage screen normal reading | 12-14 | V | 12 volt systems, engine running |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Procedures
5Test the PAS diagnostic
- Pull the T-handle (valve must be open before testing) OR press the emergency stop button
- Confirm valve closed by verifying knob rotated perpendicular to pipe centerline
Changing the Engine Oil maintenance
⚠ Allow engine to cool before draining oil or coolant
- Ensure ATS/engine switches OFF before maintenance
- Shut down lights and engine
Lubricating Trailer Wheel Bearings maintenance
Tools: grease gun
- Remove rubber plug from metal end cap
- Attach grease gun fitting to Zerk fitting
- Pump grease until fresh grease visible at nozzle
- Wipe excess grease and replace rubber plug
Raising the Mast—Manual Winch operation
⚠ Do not extend mast beyond colored mark
⚠ Stop immediately if mast hangs up or cable develops slack
- Set up and level the unit
- Inspect mast cables for wear/damage; verify centered in pulleys
- Rotate mast to desired direction using rotation knob
- Rotate winch to slowly extend mast until colored mark on second section is visible
Starting the Unit (Key Switch Models) operation
⚠ Do not continuously crank engine for more than ten seconds
- Verify main circuit breaker and light breaker are OFF
- Turn key to GLOW PLUG position, hold 5 sec (15 sec max)
- Turn key to START position, hold (10 sec max) until engine starts
- Release key; it moves to RUN position
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 Generac MLT6?
The Generac MLT6 is rated 6 kW standby (6.0 kVA).
What engine does the Generac MLT6 use?
The Generac MLT6 is powered by the Mitsubishi L3E engine.
Is the Generac MLT6 diesel or gas?
The Generac MLT6 runs on Diesel.
What's the oil capacity on a Generac MLT6?
The Mitsubishi L3E engine in the Generac MLT6 has an oil capacity of 5.0 liters.
What is the cooling system capacity of the Generac MLT6?
The Generac MLT6 cooling system holds 4.3 liters (1.1 US gallons) for the radiator system including the engine, per the manufacturer specification sheet.
What is the prime power rating of the Generac MLT6?
The Generac MLT6 is rated 8 kW prime (12 kVA), against 6 kW standby.
How loud is the Generac MLT6?
The Generac MLT6 is rated at 63.0 dBA at 7 (23 ft) m, per the manufacturer specification sheet.
How much does the Generac MLT6 weigh?
The Generac MLT6 has a dry weight of 594 kg (1309 lb).
How big is the fuel tank on the Generac MLT6?
The Generac MLT6 has a 154.5 liter (41 US gallon) fuel tank, giving about 67 hours of runtime.
What voltage does the Generac MLT6 produce?
The Generac MLT6 is offered in 120 V, 240 V, 1Ø-phase.
What battery does the Generac MLT6 use?
The Generac MLT6 uses 1 battery, 12 V each, 440 CCA, group 24, per the manufacturer specification sheet.
Which alternator is fitted to the Generac MLT6?
The Generac MLT6 uses a Marathon 201CSA5423 alternator.
What oil filter does the Generac MLT6 use?
The Generac MLT6 uses oil filter part number 7665025430.
What air filter does the Generac MLT6 use?
The Generac MLT6 uses air filter part numbers KUBOTA K318182240, KUBOTA K318182250.
Troubleshooting
6Fault codes
| Code | Meaning |
|---|---|
| 000192 | Engine down |
Symptoms & remedies
| Symptom | Cause | Remedy |
|---|---|---|
| Alarms, warnings, and engine Diagnostic Trouble Code (DTC) faults are displayed. | When an alarm occurs, the controller automatically switches to this screen and remains there until the alarm is cleared. The Stop LED also flashes. | |
| Low oil pressure shutdown | Low oil level | Verify oil level on dipstick. Add oil, if needed. |
| Oil leaking from engine | 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. |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing. Full Generac MLT6 troubleshooting guide (16 entries) →
Repair guides
3- Lubricating Trailer Wheel Bearings
- Raising the Mast—Manual Winch
- Starting the Unit (Key Switch Models)
Step-by-step procedures compiled from the Generac service manual for this model.
Parts
26| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 01968 | No Alarms | No alarms | Amazon eBay | |
| 01973 | Alarms Screen | Alarms screen | Amazon eBay | |
| 02012 | Home Screen | 1 | Home screen | Amazon Amazon eBay eBay |
| 02019 | Maintenance Screen | 1 | Maintenance screen | Amazon eBay |
| 132-0375 | Sea Water Pump Impeller kit w/cover & gasket | Impeller | Amazon eBay FridayParts $26.00 | |
| 132-0379 | Sea Water Pump Impeller | Impeller | Amazon eBay $29.95 | |
| 149-2106 | Fuel Filter | 1 | Fuel filter | Amazon eBay $34.99 NAPA $61.61 KuduParts $68.00 |
| 185-5421 | Plug, Glow | 2 | Glow plug | Amazon eBay $35.00 |
| 185-5835 | Oil Filter | 1 | Oil filter | Amazon eBay $21.78 NAPA $3.59 FridayParts $20.19 |
| 185-6934 | V-Belt | 1 | Belt | Amazon eBay $70.52 |
| 185-7268 | Glow Plug (24 Volt) | Glow plug | Amazon eBay | |
| 300-1500 | Fuel Filter | 1 | Fuel filter | Amazon |
| 323-1544 | Thermostat | 1 | Thermostat | Amazon eBay |
| 324-1491 | Oil Filter | 1 | Oil filter | Amazon eBay |
| 324-1542 | Fuel Injection Pump | 1 | Pump | Amazon eBay |
| 612-6673 | Water Pump | 1 | Pump | Amazon eBay |
| M1679-2 | TWO F U E L LINES IN TANK FITTING | Fuel line | Amazon eBay | |
| 02018 | Shutdown | 1 | Service part / kit | Amazon eBay |
| 100-3478-02 | Cruise Kit | 2 | Service part / kit | Amazon eBay |
| 10000034752 | LED modules and drivers | Service part / kit | Amazon eBay | |
| 130-4434 | Zinc Pencil | 1 | Service part / kit | Amazon eBay $34.17 NAPA $23.21 |
| 185-6721 | Element, Breather | 1 | Service part / kit | Amazon eBay |
| 209649 | Form: SFC626B | 1 | Service part / kit | Amazon eBay |
| CS1312-1 | CROSS-SECTION VIEW HULL STRAINER SEA COCK RECOMMENDED WATER STRAINER OR FILTER FLUSH THROUGH-HULL FITTING TO GENSET | Service part / kit | Amazon Amazon eBay eBay | |
| MILT3060 | 240 VAC 50 Amp Twistlock Outlets | 1 | Service part / kit | Amazon eBay |
| MIT3080 | 240 VAC 30 Amp Twistlock Outlets | 1 | Service part / kit | Amazon eBay $319.99 |
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 | 100% | 2.6 | 0.69 |
| Prime | 8.33 | 2.2 | |
| Prime | 0.9 | 0.2 | |
| Standby | 2.23 | 0.59 | |
| Standby | 0.9 | 0.24 | |
| Standby | 100% | 2.3 | 0.6 |
Available documents
This page was generated from the 11 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.