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Generac MMG405 Generator Set

The Generac MMG405 is a 358 kW (447 kVA) diesel standby generator set powered by a John Deere RG6135HF485 engine. It is available at 120/208 V and 277/480 V, three phase-phase and 60 Hz. Starting uses 2 batteries rated 1000 CCA. The set measures 4450×1520×2440 mm (175.2×59.8×96.1 in), weighs about 5779 kg (12740 lb) and produces 68 dBA at 7.01 m. An integrated tank holds 2331.8 L (616.0 gal), roughly 29 hours of runtime.

358 kW
Standby
13.5 L
Displacement
1
Document types

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Specifications

Fueldiesel
Frequency60.0 Hz
Standby power358 kW
Standby kVA447
Prime power326 kW
EmissionsTier III
ControllerMicroprocessor-based controller
Voltage options120/208 V, 277/480 V
Phasethree phase
Circuit breaker1600 A
Battery cranking1000 CCA
Battery quantity2
Max ambient48.89 °C
Dimensions (L×W×H)4450×1520×2440 mm
Dry weight5779 kg
Sound level68.0 dBA @ 7.01 m
Fuel tank2331.8 L
Tank runtime29 hr

Engine

John Deere RG6135HF485
Displacement13.5 L
Aspirationturbocharged
Rated speed1800 rpm

Maintenance & consumables

for the John Deere RG6135HF485
ItemSpecCapacityPart #Interval
Air filterpaper element find

Common questions

What is the power rating of the Generac MMG405?

The Generac MMG405 is rated 358 kW standby (447.0 kVA).

What engine does the Generac MMG405 use?

The Generac MMG405 is powered by the John Deere RG6135HF485 engine.

What fuel does the Generac MMG405 use?

The Generac MMG405 runs on diesel.

Fuel consumption

RatingLoadL/hgal/h
Prime50%40.110.6
Prime75%59.815.8
Prime100%79.921.1

Available documents

Parts manual — 20435 (Generac)

Other sets with this engine