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Generac MLT 4060 Generator Set

The Generac MLT 4060 is a 6 kW Diésel standby generator set powered by a Mitsubishi L3E-W461ML engine. It is available at 120/240 V, single-phase and 60 Hz. It holds about 3.6 L (1.0 gal) of oil and 4.3 L (1.1 gal) of coolant. The set measures 4320×1730×1780 mm (170.1×68.1×70.1 in), weighs about 998 kg (2200 lb) and produces 68 dBA at 7 m. An integrated tank holds 213.5 L (56.4 gal), roughly 95.6 hours of runtime. The same L3E-W461ML engine also powers generator sets from Magnum and Mitsubishi.

6 kW
Standby
0.95 L
Displacement
3.6 L
Oil capacity
1
Document types

How to read your Generac serial & model number →

Service parts for the MLT 4060

Grouped by system, with how many of each the parts manual calls for.

Air intake

1 required
16444Air filter$14.99eBay

Fuel system

1 required
13515Fuel filter$20.71NAPA

Oil system

1 required
15146Oil filtersee priceeBay

Belts

1 required

Prices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.

Specifications

FuelDiésel
Frequency60.0 Hz
Standby power6 kW
Oil capacity3.6 L
Voltage options120/240 V
Phase1
Dimensions (L×W×H)4320×1730×1780 mm
Dry weight998 kg
Sound level68.0 dBA @ 7 m
Fuel tank213.5 L
Tank runtime95.6 hr

Engine

Mitsubishi L3E-W461ML
Oil capacity3.6 L
Coolant capacity4.3 L
Displacement0.95 L
Aspirationliquid cooled, 4-stroke
Rated speed1800 rpm

Filters for the Mitsubishi L3E-W461ML

2

Engine-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.

SystemFilterDescriptionCross-references
Oil filterP502007Lube Filter, Spin-On Full FlowMITSUBISHI 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:

SystemFilterDescriptionCross-references
Fuel / water separatorP551423Fuel Filter, Water Separator Spin-OnMITSUBISHI D070001, NAPA 3531, NAPA 600091, NAPA 600092 KuduParts $18.00 FridayParts $20.00

Same engine, other brands

2 brands

The Mitsubishi L3E-W461ML in this set also powers 6 generator sets sold under 2 other brands. Service parts and maintenance intervals for the engine are shared; enclosure, alternator, controller and ratings are not.

BrandModels
MagnumLR 114630-1, MLT 4060, MLT 4080, MLT 5060, MLT3060M
MitsubishiL3E-W461ML

Maintenance & consumables

for the Mitsubishi L3E-W461ML
ItemSpecCapacityPart #Interval
Air filterMitsubishi / Kubota16444 eBay $14.99
Fuel filterKubota D90513515500 hr Amazon eBay NAPA $20.71
Oil filterKubota15146250 hr eBay
BatteryInspect Engine Starting Battery—12000 hr
BeltMitsubishi103861000 hr Amazon eBay
Coolant4.5—12000 hr
Coolant filter—250 hr
OilChange the engine oil and oil filter after the initial 50 hours of operation, then at the appropriate interval thereafter.5.1—1200 hr
Spark plug—1000 hr

Service intervals

21
ItemActionHoursMonthsNotes
Coolant levelCheck8 hrDaily or before use
Electrical connectionsCheck8 hrDaily or before use
Fuel levelCheck8 hrDaily or before use
Oil levelCheck8 hrDaily or before use
Tire pressureCheck8 hrDaily or before use
Engine bolts and nutsAdjust50 hrFirst service — Initial 50 hours
Engine oil and oil filterChange50 hrFirst service — Change after the initial 50 hours of operation, then at the appropriate regularly scheduled interval thereafter
Engine oil and oil filterReplace50 hrFirst service — Initial 50 hours, then yearly or 100 hours
Replace engine oil and oil filterChange50 hrFirst service — Mitsubishi engine, after initial 50 hours, then at regular interval thereafter
Air cleanerCheck250 hrInspect
Fuel filterReplace250 hr
Belt and belt tensionInspect400 hrInspect and adjust
Fuel tankDrain400 hrDrain water from fuel tank
Glow plugsCheck500 hrDiesel engines
Leveling jacksLubricate750 hr
Air cleaner elementReplace12 moReplace yearly, or after six cleanings, whichever occurs first (Mitsubishi engine guide)
Jack Maintenance (lubricate gearing/handle)Lubricate12 moPerform at least annually
Replace air cleaner elementReplace12 moKubota engine: yearly, or after six cleanings, whichever occurs first
Trailer Wheel Bearings LubricationLubricate12 moMinimum every 12 months or 12,000 miles (19,312 km)
Trailer wheel bearingsLubricate12 moMinimum recommended lubrication is every 12 months or 12,000 miles (19,312 km)
Winch brake assemblyClean6 moClean 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

10
TypeItemValueUnitCondition
PressureEngine oil pressure, normal operating35-80psi (241-552 kPa)engine running
TemperatureEngine coolant temperature, normal operating100-230°F (38-110°C)engine running
TemperatureHigh Coolant Temperature Shutdown Threshold210°F99°C
TorqueWheel lug nuts, first pass20-25ft-lb (27-33 Nm)first pass
TorqueWheel lug nuts, second pass50-60ft-lb (67-81 Nm)second pass
TorqueWheel lug nuts, third pass90-120ft-lb (122-162 Nm)third pass
VoltageEngine/DC battery voltage (VBAT)13.5-15V12-volt system, engine running
VoltageGFCI Outlet / Ballast Supply Voltage120 ±5V
VoltageTransformer Stabilized Voltage240-260VACafter strike, drops then rises and stabilizes
VoltageTransformer Strike Voltageapproximately 400VACwhen 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

FluidGradeStandardAmbientCapacityNotes
Coolant50% glycol, 50% waterbelow 49°CStandard mixture; 60/40 and heated options available for cold weather
Coolant50% glycol, 50% water or 60% glycol, 40% waterbelow 49°CLiquid cooled engines with standard 50/50 mixture or optional cold-weather 60/40 configuration
Coolant50/50 glycol/water or 60/40below 49°CLiquid cooled diesel engines
Coolant40% water / 60% antifreezeabove -36°CFreezing point -34°F (-36°C); maximum freeze protection is 60% antifreeze
Coolant50% water / 50% antifreezeabove -24°CFreezing point -12°F (-24°C); mix demineralized/distilled water with coolant, not hard water
Engine oilSAE 0W-20 Syntheticbelow -18°CFor use below -0°F / -18°C
Engine oilSAE 10WFrom engine oil viscosity chart decal
Engine oilSAE 15W-40From engine oil viscosity chart decal
Engine oilSAE 30WFrom engine oil viscosity chart decal
Engine oilSAE 40WFrom engine oil viscosity chart decal
FuelNo. 2D diesel (above freezing) / No. 1D diesel (at or below freezing); climatized 1D/2D mix also usable in some areasUltra-low-sulfur diesel onlyDo NOT use home heating oil or bio-diesel fuel
FuelUltra-low-sulfur diesel No. 1D or No. 2DNo. 1D when at or below freezing; No. 2D when above freezing; climatized fuel acceptable
FuelUltra-low-sulfur diesel; No. 1D below freezing, No. 2D above freezing (climatized 1D/2D blend acceptable in some areas)216.0 LDO NOT use home heating oil or bio-diesel fuel

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Procedures

8
Jack Maintenance maintenance
  1. Apply automotive grease to internal gearing via jack cover or grease fitting near crank (side-wind models)
  2. Rotate jack handle to distribute grease evenly
  3. Apply lightweight oil to handle unit at both sides of tube (side-wind models)
  4. Lubricate caster wheel axle bolt/nut assembly with lightweight oil if equipped
  5. Apply lightweight oil to screw stem (top-wind models)
Trailer Wheel Bearing Lubrication maintenance

Tools: Grease gun

  1. Remove small rubber plug on grease cap
  2. Attach standard grease gun fitting to grease zerk fitting
  3. Pump grease until new grease is visible around gun nozzle
  4. Wipe excess grease from hub with clean cloth
  5. Replace rubber plug
Winch Preventive Maintenance maintenance

⚠ Replace cable immediately if damaged

⚠ Replace brake if slippage detected

  1. Check winch is free of dirt, oil, grease, water, and foreign substances
  2. Ensure all mounting bolts tightened to recommended torque values
  3. Check connections are securely tightened and free of corrosion
  4. Inspect cable for damage: cuts, knots, crushed or frayed portions, broken strands
  5. Check brake for slippage or drift by visual inspection when winch is under load
Raising the Mast operation

⚠ Do not extend mast beyond the colored mark on the second mast section

⚠ Stop immediately if the mast hangs up or winch cable develops slack

  1. Set up and level the unit
  2. Check both sets of mast cables for wear or damage; verify centered in pulleys
  3. Press and hold winch control toggle switch upward to telescope mast to desired height
  4. Rotate mast by loosening rotation knob, aim lights, then tighten knob
Shutting Down the Unit - Standard Controls operation
  1. Remove all loads from the outlets
  2. Switch individual circuit breakers for each light OFF (O)
  3. Switch the main circuit breaker OFF (O)
  4. 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

  1. Verify main circuit breaker and individual light breakers are OFF (O)
  2. Turn key to GLOW PLUG position, hold 10-15 seconds until glow plug indicator turns red
  3. Turn key to START position, hold until engine cranks and starts
  4. Release key; it moves to RUN position
  5. Allow engine to reach normal operating temperature before switching on loads
Towing the Unit operation

⚠ Maximum highway towing speed 55 mph (88.5 km/h); off-road 10 mph (16 km/h) or less

Tools: grease gun

  1. Raise rear jack and release locking pin into travel position
  2. Raise outrigger jacks and slide outriggers into frame until locking pins snap
  3. Use tongue jack to raise/lower trailer onto hitch; lock coupling and attach safety chains
  4. Lubricate grease fittings on leveling jacks
  5. Connect trailer wiring to tow vehicle and check lights
  6. Check wheel lugs; tighten in sequence to specification if removed
  7. Check tire inflation
Lowering the Mast Manually repair

⚠ Continuous use of this procedure could damage the planetary gear brake of the winch

Tools: 3/8 in. hex-wrench

  1. Remove power cables from the two terminals on the winch motor assembly
  2. Remove two flange head screws securing winch motor assembly, retain for reassembly
  3. Carefully remove the motor assembly, keeping the two pieces together
  4. Insert a 3/8 in. hex-wrench into the sleeve bearing
  5. Rotate the wrench counter-clockwise to lower the mast, stopping if slack develops
  6. Install the winch motor assembly and secure with screws once mast is fully down

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 is the power rating of the Generac MLT 4060?

The Generac MLT 4060 is rated 6 kW standby.

What engine is in the Generac MLT 4060?

The Generac MLT 4060 is powered by the Mitsubishi L3E-W461ML engine.

What fuel type does the Generac MLT 4060 take?

The Generac MLT 4060 runs on Diésel.

What's the oil capacity on a Generac MLT 4060?

The Mitsubishi L3E-W461ML engine in the Generac MLT 4060 has an oil capacity of 3.6 liters.

What is the coolant capacity of the Generac MLT 4060?

The Generac MLT 4060 cooling system holds 4.3 liters (1.1 US gallons) for the engine, per the manufacturer specification sheet.

What is the sound level of the Generac MLT 4060?

The Generac MLT 4060 is rated at 68.0 dBA at 7 m, per the manufacturer specification sheet.

What is the dry weight of the Generac MLT 4060?

The Generac MLT 4060 has a dry weight of 998 kg (2200 lb).

How big is the fuel tank on the Generac MLT 4060?

The Generac MLT 4060 has a 213.5 liter (56 US gallon) fuel tank, giving about 95.6 hours of runtime.

What voltage does the Generac MLT 4060 produce?

The Generac MLT 4060 is offered in 120/240 V, 1-phase.

What oil filter does the Generac MLT 4060 use?

The Generac MLT 4060 uses oil filter part number 15146.

Which fuel filter part number does the Generac MLT 4060 take?

The Generac MLT 4060 uses fuel filter part number 13515.

What air filter fits the Generac MLT 4060?

The Generac MLT 4060 uses air filter part number 16444.

Repair guides

4

Step-by-step procedures compiled from the Generac service manual for this model.

Parts

96
Part #DescriptionQtySystem
10386Belt1Belt Amazon eBay
11042Gasket, exhaust manifold1Gasket eBay
11199Seal, axle bearing2Seal Amazon eBay $289.99
11337Generator O-ring1Seal eBay
11366Solenoid, starter Mitsu1Starter eBay $211.09
11391Bulb1Bulb Amazon eBay
11456Gasket, lens1Gasket eBay
11628Kubota D905 V-belt1Belt eBay
12213Mitsubishi, gasket, water pump1Gasket eBay
12214Mitsubishi, gasket, thermostat1Gasket eBay FridayParts $325.45
12227Hose, oil drain .375 X 20, 30R71Battery Amazon eBay
12329Marathon 6KW pancake bearing seal1Seal eBay
12350Hose, radiator - lower1Hose Amazon eBay
12486Alternator1Alternator eBay
12889Gasket, oil drain1Gasket eBay
12959Mitsubishi, gasket, intake manifold L3E1Gasket eBay
13278Fuel pump, electric1Pump Amazon eBay
13373Gasket, lens oval1Gasket eBay $224.18
13481Kubota fuel filter assembly, D9051Fuel filter eBay
13515Element, fuel filter - non-water separating1Element Amazon eBay NAPA $20.71
13876Kit, heater - fuel filter1Fuel filter Amazon eBay
14099Switch, coolant temperature1Sensor eBay
15146Filter, oil1Oil filter eBay
15375Sensor, Oil Pressure1Sensor Amazon eBay $15.00
16443Housing, Air Cleaner Metal - w/Filter Element1Housing air cleaner metal with filter element eBay
16444Element, air filter1Air filter eBay $14.99
16589Hose, air cleaner1Hose eBay
16677Switch, oil pressure1Sensor eBay $22.99 FridayParts $83.99
16678Switch, coolant temperature1Sensor eBay $60.01
16685Fuel filter head, element & fitting1Fuel filter eBay KuduParts $38.00
16686Element, fuel filter1Fuel filter eBay
16687Hose, radiator - upper1Hose Amazon eBay $101.48 KuduParts $63.00 FridayParts $65.27
16688Hose, radiator - lower1Hose Amazon eBay $101.48
16691Filter, oil1Filter eBay
16692V-belt, alternator1Belt eBay $20.59 FridayParts $20.59
16693Glow plug, engine3Glow plug eBay
16743Alternator, Mitsubishi1Alternator eBay $221.31 FridayParts $135.98
16744Water pump, Mitsubishi1Pump Amazon eBay eBay
16745Thermostat, Mitsubishi1Thermostat eBay $152.64
16769Lens, gasket1Gasket eBay
50051HOSE, FUEL - .375 ID 50 PSI SAE 30R71Hose Amazon eBay
65649Heater, engine - low rad hose1Hose Amazon eBay
02076Unit ID Tag, Vin TagService part / kit Amazon eBay
11166Transformer, metal halide1Service part / kit eBay
11167Transformer, sodium light1Service part / kit eBay
11253Cap, grease - axis with rubber plug 3500#2Service part / kit Amazon eBay $15.00
11254Plug, grease cap - for zerk (Axis)2Service part / kit Amazon eBay $296.58
11275Decal, Magnum logo w/ web - red vinyl1Service part / kit Amazon eBay $79.95
11277U-bolt, axle4Service part / kit Amazon eBay $379.05
11278Tie plate, spring2Service part / kit Amazon eBay $324.50 FridayParts $5489.60
11279Nut, locking8Service part / kit Amazon eBay
11280Spring, axle2Service part / kit Amazon eBay
11465Bulb - 1000W HPS short length1Service part / kit eBay
11555BWeldment, removable tongue - 74"1Service part / kit Amazon eBay
1208043: | F1035- OLT 7 7 71Service part / kit Amazon eBay FridayParts $39.99
12137Cap, fuel tank - vent 3.5 dia grn1Service part / kit eBay $40.99
12141Decal set, LT eng/safety 4-lang1Service part / kit Amazon eBay $13.60
12159Capacitor, 25 uF Marathon 6KW (201CSA5411)1Service part / kit eBay
12207Axle, 3500 lb. 56SC 68.5TC1Service part / kit Amazon eBay $129.53
12262Decal, 4000/5000 set up 4-lang (MW)1Service part / kit Amazon eBay $61.69
12328Marathon 6KW pancake bearing1Service part / kit eBay $164.99 KuduParts $21.00
1280046-02 | 67, 1 | 35B63-01200 63 99 17 04300, 05 9 131Service part / kit Amazon eBay $1170.53 FridayParts $26.86
12880Decal, instruction 4000/5000 4-lang (EW) not shown1Service part / kit Amazon eBay
12881Decal, instruction 3000 4-lang (EW)1Service part / kit Amazon eBay FridayParts $129.99
13018Solenoid, fuel shutdown (2 wire)1Service part / kit Amazon eBay
13369Lens, glass oval1Service part / kit eBay
13381Socket, bulb1Service part / kit eBay $62.63
13500Fuel, pick-up tube - 14.00 in.1Service part / kit eBay FridayParts $210.68
14201Relay, 10A SPDT, 15 second time delay1Service part / kit Amazon eBay
14217Bulb, metal halide1Service part / kit eBay
14679Capacitor, metal halide1Service part / kit eBay
14730Socket, light1Service part / kit eBay
14782Capacitor, sodium light1Service part / kit eBay
14783Ignitor, sodium light1Service part / kit eBay
14784Bulb, high pressure sodium1Service part / kit eBay KuduParts $20.00 FridayParts $22.00
15492Suppressor1Service part / kit eBay $244.45
15493Diode, rotor2Service part / kit eBay
15540Wheel, P205X75R15 radial w/rim2Service part / kit Amazon
15546Oil heater, pan - magnetic1Service part / kit Amazon eBay
15547Blanket, battery for 24 series1Service part / kit Amazon
15695Capacitor, 45uF Marathon1Service part / kit eBay
15798Capacitor, 50uF, 440VAC, 50/60 Hz, roundService part / kit eBay FridayParts $69.37
16134Bearing, 6 kW1Service part / kit eBay
16683Solenoid, fuel shut-down1Service part / kit eBay $137.25 KuduParts $33.00 FridayParts $137.25
18556Regulator, voltage - SE 3501Service part / kit Amazon eBay FridayParts $158.99
19219Cap, pressure radiator1Service part / kit Amazon eBay
209649Form: SFC626B1Service part / kit Amazon eBay
36431SERVICE LOGService part / kit Amazon eBay
40954Bearing, axle (inner)2Service part / kit Amazon eBay
60096Lug Nut, .500-20 (incl. w/axle)10Service part / kit Amazon eBay $28.98
60674Wheel stud, axle10Service part / kit Amazon eBay $26.25
60766Valve, drain 18mm-1.5 w/nipple1Service part / kit Amazon eBay NAPA $29.97
60774Valve, drain 22MM-1.5 w/nipple1Service part / kit eBay
65326Charger, battery - 2 amp, 3 stage1Service part / kit eBay
MILT3060240 VAC 50 Amp Twistlock Outlets1Service part / kit Amazon eBay
MIT3080240 VAC 30 Amp Twistlock Outlets1Service 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

RatingLoadL/hgal/h
Prime2.230.59

Available documents

Spec sheet (Generac)Spec sheet — GENERAC-MAGNUM-MLT4060 (Generac)Reference — magnum 6 kw 8 kw 15 kw 20 kw standard (industrialengines.ca)Owner's manual (Generac)Parts manual — A0001521579 (Generac)Parts manual — mlt4060-80mkv-led-parts-manual (Generac)

This page was generated from the 6 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.

Full service, cheapest listings

Priced items from this model's own parts manual.

Air filter 16444$14.99
Fuel filter 13515$20.71
2 priced items$35.70