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FG Wilson MJB 225 MA4 Generator Set

The FG Wilson MJB 225 MA4 is a 80 kW (100 kVA) standby generator set powered by a Perkins 1104D-E44TAG2 engine. It is available at 400 V and 380/220 V, 50 Hz. It holds about 25.5 L (6.7 gal) of oil and 1719 L (454.1 gal) of coolant, with a maximum ambient rating of 50 °C. The set measures 2010×896×3264 mm (79.1×35.3×128.5 in) and weighs about 7098 kg (15648 lb). An integrated tank holds 1252 L (330.7 gal). The same 1104D-E44TAG2 engine also powers generator sets from Perkins.

80 kW
Standby
4.4 L
Displacement
25.5 L
Oil capacity
1
Document types

How to read your FG Wilson serial & model number →

Service parts for the MJB 225 MA4

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

Oil system

1 required

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

Specifications

Frequency50.0 Hz
Standby power80 kW
Standby kVA100
Oil capacity25.5 L
AlternatorMarelli P110-6/4PP/0813/GB
Voltage options400 V, 50 V, 380/220 V
Power factor0.88
Coolant capacity1719.0 L
Max ambient50 °C
Dimensions (L×W×H)2010×896×3264 mm
Dry weight7098 kg
Fuel tank1252.0 L

Engine

Perkins 1104D-E44TAG2
Oil capacity8.0 L
Coolant capacity17.0 L
Displacement4.4 L
AspirationTurbocharged Air To Air Charge Cooled
Rated speed2350 rpm

Filters for the Perkins 1104D-E44TAG2

3

Engine-mounted filters the filter manufacturers list for this engine family. These come from the engine, not from this generator set’s own parts list, so confirm against your serial number before ordering.

SystemFilterDescriptionCross-references
Oil filterP554407Lube Filter, Spin-On Full FlowPERKINS 102632, PERKINS 2564401, NAPA 1459, BALDWIN BT237 KuduParts $25.00 FridayParts $26.84
Fuel filterP502420Fuel Filter, CartridgePERKINS 2656F823, PERKINS 4415122, NAPA 600488, CLAAS 0011377510 buy

Listed for this engine in only one kind of machine, so they may depend on how the engine was installed:

SystemFilterDescriptionCross-references
Fuel / water separatorP550588Fuel Filter, Water Separator Spin-On Twist&DrainPERKINS 265118, PERKINS T64102003, NAPA 3472, BALDWIN BF587-D FridayParts $18.44

Same engine, other brands

1 brand

The Perkins 1104D-E44TAG2 in this set also powers 2 generator sets sold under 1 other brand. Service parts and maintenance intervals for the engine are shared; enclosure, alternator, controller and ratings are not.

BrandModels
Perkins1104D-E44TAG2, 1104D-E44TAG2 ElectropaK

Maintenance & consumables

for the Perkins 1104D-E44TAG2
ItemSpecCapacityPart #Interval
Air filter—
Fuel filter—
Oil filter901103 Amazon eBay $39.01 NAPA $18.35 KuduParts $25.00
Battery—
Belt—
Coolant17.0 litres—
Oilmulti-grade oil conforming to API-CH4/CI48.0 litres—
Spark plug—

Compatible filters for the Perkins 1104D-E44TAG2 — cross-referenced via Donaldson. Options to verify against your serial number, not confirmed for this exact unit.

  • Air filter: Fg Wilson 901048 Fg Wilson 901050 Perkins 901048 Perkins 26510343 Donaldson P828889

Common questions

What is the power rating of the FG Wilson MJB 225 MA4?

The FG Wilson MJB 225 MA4 is rated 80 kW standby (100.0 kVA).

What engine is in the FG Wilson MJB 225 MA4?

The FG Wilson MJB 225 MA4 is powered by the Perkins 1104D-E44TAG2 engine.

What is the oil capacity of the FG Wilson MJB 225 MA4?

The Perkins 1104D-E44TAG2 engine in the FG Wilson MJB 225 MA4 has an oil capacity of 8.0 liters.

What is the cooling system capacity of the FG Wilson MJB 225 MA4?

The FG Wilson MJB 225 MA4 cooling system holds 1719 liters (454.1 US gallons) for the radiator system including the engine, per the manufacturer specification sheet.

What is the dry weight of the FG Wilson MJB 225 MA4?

The FG Wilson MJB 225 MA4 has a dry weight of 7098 kg (15648 lb).

How big is the fuel tank on the FG Wilson MJB 225 MA4?

The FG Wilson MJB 225 MA4 has a 1252 liter (331 US gallon) fuel tank.

What voltages is the FG Wilson MJB 225 MA4 available in?

The FG Wilson MJB 225 MA4 is offered in 400 V, 50 V, 380/220 V.

Which alternator is fitted to the FG Wilson MJB 225 MA4?

The FG Wilson MJB 225 MA4 uses a Marelli P110-6/4PP/0813/GB alternator.

What oil filter fits the FG Wilson MJB 225 MA4?

The FG Wilson MJB 225 MA4 uses oil filter part number 901103.

Which air filter part number does the FG Wilson MJB 225 MA4 take?

The FG Wilson MJB 225 MA4 uses air filter part numbers FG WILSON 901048, FG WILSON 901050.

Available documents

Spec sheet — P110-6(4PP)GB(0813) (FG Wilson)

This page was generated from the 1 manufacturer document above by automated extraction; every figure shown is copied from one of them. How the data is compiled.

Full service, cheapest listings

Priced items from this model's own parts manual.

Oil filter 901103$18.35
1 priced item$18.35