HomeGeneracGenerac MDG150DF4

Generac MDG150DF4 Generator Set

The Generac MDG150DF4 is a 145 kW (181 kVA) Diesel standby generator set powered by a John Deere 6068HFG05 engine. It is available at 120/208 V, 277/480 V and 120/240 V, 3-phase, 60 Hz and rated 218 A. It holds about 32.5 L (8.6 gal) of oil and 63.2 L (16.7 gal) of coolant, with a maximum ambient rating of 49 °C. Starting uses 2 group-31 batteries rated 1000 CCA at 12 V. The set measures 5300×2200×2600 mm (208.7×86.6×102.4 in), weighs about 3978 kg (8770 lb) and produces 75 dBA at 7 m. An integrated tank holds 1355 L (358.0 gal), roughly 39 hours of runtime. The same 6068HFG05 engine also powers generator sets from Hipower.

145 kW
Standby
6.8 L
Displacement
32.5 L
Oil capacity
3
Document types

Specifications

FuelDiesel
Frequency60.0 Hz
Standby power145 kW
Standby kVA181
Prime power120 kW
Emissions4
ControllerPower Zone
Oil capacity32.5 L
Voltage options120/208 V, 277/480 V, 120/240 V
Phase3
Rated current218 A
Power factor0.8
Circuit breaker600 A
Battery group31
Battery cranking1000 CCA CCA
Battery voltage12V V
Battery quantity2
Coolant capacity63.2 L
Max ambient49 °C
Dimensions (L×W×H)5300×2200×2600 mm
Dry weight3978 kg
Sound level75.0 dBA @ 7 m
Fuel tank1355.0 L
Tank runtime39 hr

Engine

John Deere 6068HFG05
Oil capacity32.5 L
Coolant capacity42.0 L
Displacement6.8 L
AspirationTurbocharged and Aftercooled
Rated speed1800 rpm

Maintenance & consumables

for the John Deere 6068HFG05
ItemSpecCapacityPart #Interval
Air filterDisposable air filter – paper element find
BeltFan Type find
CoolantCooling System Capacity – gal (L)11.0 L
Fuel filterFuel Filtering (microns)2.0 find
OilCrankcase Capacity – qts (L)34.3 L
Oil filterOil Filter Type find

Troubleshooting

4
SymptomCauseRemedy
Low Load indicator LED is illuminated.Resolve by increasing electrical load. If unable to operate genset at more than 30% load, use a smaller generator.
Lug Door Open indicator LED is illuminated.Resolve by closing lug-box door. If condition remains unresolved, inspect lug-box door safety switch for proper operation.
Emergency Stop indicator LED is illuminated.Resolve by deactivating (pulling out) Emergency Stop switch.
Shutdown indicator LED is illuminated.Resolve by resolving shutdown condition.

Symptom → cause → remedy extracted from this model’s service/owner documentation; verify against the official manual before servicing.

Parts

3
Part #DescriptionQtySystem
003574Unit Serial Number LocationsService part / kit buy
51551Decal set, safety1Service part / kit buy
51552Decal, high temp warning2Service part / kit buy

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
Prime6.9
Prime25%12.9
Prime50%19.9
Prime75%26.9
Prime100%33.0
Standby1.3
Standby25%13.6
Standby50%22.0
Standby75%29.5
Standby100%36.0

Available documents

Spec sheetOwner's manualParts manual