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Generac MGG155 Generator Set

The Generac MGG155 is a 90 kW (113 kVA) Natural Gas, LP Liquid standby generator set powered by a PSI 8.1 L engine. It is available at 120 V and 24 V, 50 Hz. It holds about 7.6 L (2.0 gal) of oil.

90 kW
Standby
8.1 L
Displacement
7.6 L
Oil capacity
3
Document types

Specifications

FuelNatural Gas, LP Liquid
Frequency50.0 Hz
Standby power90 kW
Standby kVA113
Controller'MOTORTECH'], ['ComAp InteliGen'
Oil capacity7.6 L
Voltage options120 V, 24 V

Engine

PSI 8.1 L
Displacement8.1 L

Filters & service parts

model family
ItemSpecCapacityPart #Interval
Air filterfan belt—750 hr find
Beltfan belt—750 hr find
Coolantengine coolant—
Coolant filter— find
Fuel filter— find
Oilauxiliary engine oil reservoir—750 hr
Oil filter— find

Compiled from this model's family documentation — may include parts for closely-related variants. Confirm the exact part for your serial number.

Parts

7
Part #DescriptionQtySystem
00578Control Panel - MGG155 and MGG210Service part / kit buy
00651Formula Example - Fuel Select SwitchService part / kit buy
00720Fuel System - MGG155 ShownService part / kit buy
00844Engine Oil RecommendationsService part / kit buy
02032Component Locations - MGG155 - Left SideService part / kit buy
02034Component Locations - MGG155 and MGG210 - Right Side (MGG155 Shown)Service part / kit buy
02063Unit Serial Number LocationsService 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
Prime
Standby

Available documents

BrochureOperator's manualReference