HomeGeneracGenerac MMG75D

Generac MMG75D Generator Set

The Generac MMG75D is a 69 kW (86 kVA) Diesel standby generator set powered by a John Deere PE4045HFG92 engine. It is available at 208 V, 220 V, 440 V and 480 V, 3-phase, 60 Hz and rated 103 A. It holds about 15.5 L (4.1 gal) of oil and 22 L (5.8 gal) of coolant, with a maximum ambient rating of 120 °C. Starting uses 1 group-24 battery rated 720 CCA at 12 V. The set measures 4320×1750×2030 mm (170.1×68.9×79.9 in), weighs about 1923 kg (4239 lb) and produces 68 dBA at 7 m. An integrated tank holds 625 L (165.1 gal), roughly 31 hours of runtime. The same PE4045HFG92 engine also powers generator sets from Magnum.

69 kW
Standby
4.5 L
Displacement
15.5 L
Oil capacity
3
Document types

Specifications

FuelDiesel
Frequency60.0 Hz
Standby power69 kW
Standby kVA86
Prime power62 kW
EmissionsInterim Tier 4
ControllerPower Zone
Oil capacity15.5 L
Voltage options120 V, 240 V, 208 V, 277 V, 480 V
Phase3
Rated current103 A
Power factor0.8
Circuit breaker300 A
Battery group24
Battery cranking720 CCA
Battery voltage12 V
Battery quantity1
Max ambient120 °C
Dimensions (L×W×H)4320×1750×2030 mm
Dry weight1600 kg
Sound level68.0 dBA @ 7 m
Fuel tank625.0 L
Tank runtime31 hr

Engine

John Deere PE4045HFG92
Coolant capacity22.0 L
Displacement4.5 L
AspirationTurbo
Rated speed1800 rpm

Maintenance & consumables

for the John Deere PE4045HFG92
ItemSpecCapacityPart #Interval
Air filterAir Filter Replacement300 hr find
BeltInspect pulleys and bearings. Rotate and feel for hard turning or unusual sounds. If pulleys or bearings need replacement, contact John Deere.500 hr find
CoolantCoolant Change20.8 L151 hr
Fuel filterMaintenance250 hr find
OilOil Change15.5 L300 hr
Oil filterOil Filter Replacement300 hr find

Parts

3
Part #DescriptionQtySystem
00087Twist-Lock Receptacles1Receptacle buy
00452120V GFCI Receptacles1Receptacle buy
0045320A Circuit Breakers1Breaker 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
Prime2.650.7
Prime50%2.69.8
Prime75%3.7414.2
Prime100%4.7818.1

Available documents

Spec sheetOperator's manualOwner's manual

Other sets with this engine