HomeMagnumMagnum MLT4060

Magnum MLT4060 Generator Set

The Magnum MLT4060 is a 9.1 kW Diesel standby generator set powered by a Mitsubishi L3E-W461ML engine. It is available at 120 V and 240 V, single-phase, 60 Hz and rated 50 A. It holds about 3.6 L (1.0 gal) of oil and 4.3 L (1.1 gal) of coolant. Starting uses 1 group-24 battery rated 440 CCA at 12 V. The set weighs about 760 kg (1676 lb). An integrated tank holds 114 L (30.1 gal), roughly 64 hours of runtime. The same L3E-W461ML engine also powers generator sets from Generac and Mitsubishi.

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

Typical fuel consumption for 5–10 kW Diesel generators →

Compare with other 5–10 kW Diesel generators →

Service parts for the MLT4060

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

Air intake

1 required

Fuel system

1 required
33192Fuel filter$24.95eBay

Oil system

1 required

Belts

1 required

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

Specifications

FuelDiesel
Frequency60.0 Hz
Standby power9 kW
Prime power7 kW
Emissions4f
Oil capacity3.6 L
AlternatorMarathon 201CSA5411 (Class F insulation)
Voltage options120 V, 240 V
Phase1
Rated current50 (120V) / 25 (240V) A
Power factor1
Circuit breaker30 A
Battery group24
Battery cranking440 CCA
Battery voltage12V V
Battery quantity1
Coolant capacity4.3 L
Dry weight760 kg
Wet weight856 kg
Fuel tank114.0 L
Tank runtime64 hr

Engine

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

Maintenance & consumables

for the Mitsubishi L3E-W461ML
ItemSpecCapacityPart #Interval
Air filterMitsubishi / Kubota16444 Amazon $370.99 eBay
Fuel filter33192500 hr Amazon eBay $24.95
Oil filter76650254301000 hr Amazon $18.01 eBay $22.12 PartsGeek $7.98
BatteryCheck the battery daily.12000 hr
BeltMitsubishi103861000 hr Amazon eBay
Coolant4.512000 hr
Coolant filter250 hr
OilChange the engine oil and oil filter after the initial 50 hours of operation, then at the appropriate interval thereafter.5.11200 hr
Spark plugReplace Air Filter Element1000 hr

Service intervals

28
ItemActionHoursMonthsNotes
All Electrical ConnectionsCheck50 hrMitsubishi schedule
Fuel Pipes And Clamp BandsCheck50 hrKubota
Light Tower WinchInspect50 hrInspect for proper operation
Radiator FinsClean50 hrInspect for debris, clean as required
Air Cleaner ElementClean1000 hrKubota
Fan Belt TightnessCheck100 hrKubota
Fuel FilterClean100 hrKubota
Radiator Hoses And Clamp BandsCheck100 hrKubota
Water SeparatorDrain100 hrKubota
Engine OilChange200 hrFirst service — Kubota; change after initial 50 hours, then at interval
Intake Air LineCheck200 hrKubota
Oil Filter CartridgeReplace200 hrFirst service — Kubota; after initial 50 hours
Air CleanerCheck250 hrMitsubishi
Bolts And Nuts On The EngineOther250 hrFirst service — Retighten; after initial 50 hours (Mitsubishi)
Engine Oil and Oil FilterChange250 hrFirst service — Mitsubishi; perform after initial 50 hours, then regularly scheduled interval
Fuel TankDrain1000 hrDrain water (Mitsubishi)
Fan BeltReplace400 hrKubota
Fuel Filter CartridgeReplace400 hrKubota
Water SeparatorClean400 hrKubota
Fuel FilterReplace500 hrMitsubishi
Glow PlugsCheck500 hrMitsubishi
Leveling JacksLubricate500 hrMitsubishi
Sediment In Fuel TankOther500 hrRemove (Kubota)
Heated Fuel Filter (If Equipped)Replace1000 hrMitsubishi
Water SedimenterDrain1000 hrMitsubishi
Air Filter ElementReplace12 moKubota; yearly or after six cleanings, whichever occurs first
Trailer Wheel BearingsLubricate12 moevery 12 months or 12,000 miles (19,312 km)
Winch (manual)Lubricate12 mogears, ratchet pivot point and shaft bushings

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
TypeItemValueUnitCondition
TorqueWheel lug nuts - first pass20-25ft-lbs (27-33 Nm)
TorqueWheel lug nuts - second pass50-60ft-lbs (67-81 Nm)
TorqueWheel lug nuts - third pass90-120ft-lbs (122-162 Nm)
VoltageIncoming voltage to ballast120V +/- 5V
VoltageTransformer output at light strikeapproximately 400VAC striking, stabilizing 240-260VACVAC

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

Procedures

5
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 into fitting until new grease is visible around nozzle
  4. Wipe excess grease from hub and replace rubber plug
Light Tower Set Up operation

⚠ Mast extends up to 30 ft (9.14 m); make sure area above unit is open and clear of overhead wires

  1. Locate unit at ground level or higher than illuminated area for maximum light coverage
  2. Place unit on firm, relatively flat ground and block the wheels
  3. Rotate tongue jack 90 degrees, raise trailer tongue off towing vehicle
  4. Connect a good earthen ground to grounding stud on frame near trailer tongue
  5. Pull outrigger locking pins, extend each outrigger, rotate outrigger jacks 90 degrees with pad facing down
  6. Rotate rear jack 90 degrees, level trailer using all four jacks
  7. Adjust lamps by loosening wing nuts on trunnion, aim, tighten hardware, connect to junction box
Lowering the Mast operation

⚠ STOP IMMEDIATELY if mast hangs up or winch cable develops slack

  1. Shut down lights and engine, allow lights to cool 10-15 minutes
  2. Loosen mast rotation knob, align white arrows until stop tabs touch, tighten knob
  3. Turn upper mast winch handle counterclockwise to collapse mast to lowest position
  4. Release mast lock by pulling safety pin, turn lower mast winch handle counterclockwise until mast rests in transport cradle
  5. Insert mast cradle locking pin and secure with safety pin
Raising the Mast operation

⚠ Never raise or lower mast while unit is operating

⚠ Do not extend mast beyond colored mark on middle mast tube

  1. Set up and level the unit with outriggers extended
  2. Remove mast cradle locking pin from mast cradle
  3. Check mast cables for wear/damage, ensure properly centered in pulleys, check electrical cord
  4. Ensure area around unit is clear before raising mast to vertical
  5. Remove safety pin from mast lock bar, use lower mast winch handle to raise mast until vertical and locked, secure with safety pin
  6. Use upper mast winch to telescope mast to desired height, extending slowly
  7. Rotate mast by loosening mast rotation knob, turn to desired direction, tighten knob
Starting the Unit operation

⚠ Excessive cranking will cause damage to starter

⚠ If oil pressure not obtained within 15 seconds, low oil automatic shutdown will stop engine

  1. Check main circuit breaker and individual light breakers are OFF
  2. Turn key to GLOW PLUG position and hold 5 seconds or until glow plug indicator turns red (Kubota has no glow plug indicator)
  3. Turn key to START position and hold until engine cranks and starts, release key to RUN position
  4. Do not crank engine longer than 10 seconds at a time; wait 30 seconds between attempts
  5. Allow engine to reach normal operating temperature before switching on loads

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 Magnum MLT4060?

The Magnum MLT4060 is rated 9 kW standby.

What engine is in the Magnum MLT4060?

The Magnum MLT4060 is powered by the Mitsubishi L3E-W461ML engine.

What fuel does the Magnum MLT4060 use?

The Magnum MLT4060 runs on Diesel.

What is the oil capacity of the Magnum MLT4060?

The Mitsubishi L3E-W461ML engine in the Magnum MLT4060 has an oil capacity of 3.6 liters.

Which alternator is fitted to the Magnum MLT4060?

The Magnum MLT4060 uses a Marathon 201CSA5411 alternator. Insulation class F.

What oil filter fits the Magnum MLT4060?

The Magnum MLT4060 uses oil filter part number 7665025430.

What fuel filter does the Magnum MLT4060 use?

The Magnum MLT4060 uses fuel filter part number 33192.

What air filter fits the Magnum MLT4060?

The Magnum MLT4060 uses air filter part number 16444.

Troubleshooting

5

Symptoms & remedies

SymptomRemedy
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.
Bulb broken.Check for broken arc tube or outer bulb jacket, broken or loose components in bulb envelope or blackening/deposits inside tube.
Mast lights off and ballast indicators on control panel are off.1. Check the connections inside the control box and inside each ballast box. 2. Generator output incorrect. Check the incoming voltage to the ballast by checking the available voltage on the duplex receptacle. Incoming voltage should be 120V +/- 5V. If voltage is incorrect, the engine speed may need to be adjusted or generator may require service. 3. Low transformer output. The voltage from the transformer should read approximately 400VAC as the light 'strikes' (induces an arc), then drop and slowly rise back up to stabilize at 240-260VAC. On quick disconnect models, measure across the junction box terminals when the light is unplugged. On hard wired models, remove the mast junction box cover and insert the wire probes into the connector blocks for the light and ground. If proper voltage is not achieved, perform capacitor check to determine if the capacitor or coil needs to be replaced.
Mast lights on but the light output is low.1. Fixture or lens are dirty. Clean reflective surface inside fixture and both inside and outside surface of glass lens. Use mild soap and water to clean lens. Other chemicals may have an adverse effect on the glass. 2. Bulb worn due to normal use. Replace bulb. 3. Check the mast coil cord, mast junction box and mast light connections. 4. Generator output incorrect. Check the incoming voltage to the ballast. Incoming voltage should be 120V +/- 5V. If voltage is incorrect, engine speed may need to be adjusted or generator may require service. 5. Low transformer output. The voltage from the transformer should

Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.

Parts

98
Part #DescriptionQtySystem
10386Belt, cold weather - Mitsu 6KW & 8 KW1Belt Amazon eBay
11042Gasket, exhaust manifold1Gasket eBay
11199Seal, axle bearing2Seal Amazon eBay $289.99
11337Generator O-ring1Seal eBay
11366Solenoid, starter Mitsu1Starter eBay $211.09
11456Gasket, lens1Gasket eBay
11628Kubota D905 V-belt1Belt Amazon $144.49 eBay
12213Mitsubishi, gasket, water pump1Gasket eBay
12214Mitsubishi, gasket, thermostat1Gasket eBay FridayParts $325.45
12227Hose, oil drain .375 X 20, 30R71Hose Amazon eBay
12329Marathon 6KW pancake bearing seal1Seal eBay
12350Hose, radiator lower1Hose Amazon eBay
12486Alternator1Alternator eBay
1280046-02 | 67, 1 | 35B63-01200 63 99 17 04300, 05 9 131Gasket Amazon eBay $1170.53 FridayParts $26.86
12889Gasket, oil drain1Gasket eBay
12959Mitsubishi, gasket, intake manifold L3E1Gasket eBay
13278Fuel pump, electric1Pump Amazon eBay
13373Gasket, lens oval1Gasket eBay
13481Kubota fuel filter assembly, D9051Fuel filter eBay
13515Filter, fuel element, Kubota1Filter Amazon eBay
13876Kit, heater - fuel filter1Fuel filter Amazon eBay
14099Switch, coolant temperature1Sensor eBay
15146Filter, oil1Oil filter eBay
15375Sensor, Oil Pressure1Sensor Amazon eBay
16443Filter, air with bracket1Air filter Amazon eBay
16444Element, air filter1Air filter Amazon $370.99 eBay
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 KuduParts $63.00
16688Hose, radiator lower1Hose Amazon eBay
16691Filter, oil1Oil filter Amazon $42.50 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
16769Lens, gasket1Gasket eBay
50051HOSE, FUEL - .375 ID 50 PSI SAE 30R73 ft.Hose Amazon eBay
65649Heater, engine - low rad hose1Hose Amazon eBay
90243Air Filter ElementAir filter 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
11391Bulb, 1000W MH short length1Service part / kit Amazon eBay
11465Bulb - 1000W HPS short length1Service part / kit eBay
11555BWeldment, removable tongue - 74"1Service part / kit Amazon eBay
12080Cap, fuel tank - vented, 3.5 dia. grn diesel only1Service 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
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, auto shutdown1Service 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
15492Suppressor1Service part / kit eBay $244.45
15493Diode, rotor2Service part / kit eBay
15540Wheel, P205X75R15 radial w/rim2Service part / kit Amazon eBay $14.36
15546Oil heater, pan - magnetic1Service part / kit Amazon eBay
15547Blanket, battery for 24 series1Service part / kit Amazon eBay $14.97
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
18556Regulator, voltage - SE 3501Service part / kit Amazon eBay FridayParts $158.99
19219Cap, pressure radiator1Service part / kit Amazon eBay
201CSA5411Marathon Electric Brushless generator, Insulation Class F1Service part / kit 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
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
Prime100%1.780.47

Available documents

Operator's manual (Magnum)
Full service, cheapest listings

Priced items from this model's own parts manual.

Air filter 16444$370.99
Fuel filter 33192$24.95
Oil filter 7665025430$7.98
3 priced items$403.92