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FG Wilson P45P5S Generator Set

The FG Wilson P45P5S is a 45 kW (55 kVA) standby generator set powered by a Perkins 1104A-44TG1 engine. It is available at 220 V and 240 V, single-phase and 50 Hz. It holds about 8 L (2.1 gal) of oil and 13 L (3.4 gal) of coolant. The set measures 2275×1100×1614 mm (89.6×43.3×63.5 in), weighs about 1049 kg (2313 lb) and produces 69 dBA at 7 m. An integrated tank holds 245 L (64.7 gal). The same 1104A-44TG1 engine also powers generator sets from AKSA, Lees and Perkins.

45 kW
Standby
4.4 L
Displacement
8.0 L
Oil capacity
2
Document types

How to read your FG Wilson serial & model number →

Service parts for the P45P5S

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 power45 kW
Oil capacity8.0 L
Alternator2014J
Voltage options220 V, 240 V
Phase1
Dimensions (L×W×H)2275×1100×1614 mm
Dry weight1049 kg
Wet weight1413 kg
Sound level69.0 dBA @ 7 m
Fuel tank245.0 L

Engine

Perkins 1104A-44TG1
Oil capacity8.0 L
Coolant capacity13.0 L
Displacement4.4 L
AspirationTurbocharged
Rated speed1500 rpm

Maintenance & consumables

for the Perkins 1104A-44TG1
ItemSpecCapacityPart #Interval
Air filterReplaceable Element1500 hr
Fuel filterEcoplus fuel filter1500 hr
Oil filter9011031500 hr Amazon $41.50 eBay $39.01 KuduParts $25.00
Battery12/Negative1500 hr
BeltElemento sostituibile1500 hr
CoolantReplaceable Element1500 hr
Coolant filterElemento sostituibile500 hr
Oil15W40 to API CG48.0 litres800 hr
Spark plugElemento sostituibile1500 hr

Compatible filters for the Perkins 1104A-44TG1 — cross-referenced via Donaldson. Options to verify against your serial number, not confirmed for this exact unit.

  • Air filter: Donaldson P778972 Donaldson P780012 Wix 46818 Wix 46829

Common questions

What is the power rating of the FG Wilson P45P5S?

The FG Wilson P45P5S is rated 45 kW standby.

What engine does the FG Wilson P45P5S use?

The FG Wilson P45P5S is powered by the Perkins 1104A-44TG1 engine.

What is the oil capacity of the FG Wilson P45P5S?

The Perkins 1104A-44TG1 engine in the FG Wilson P45P5S has an oil capacity of 8.0 liters.

Which alternator is fitted to the FG Wilson P45P5S?

The FG Wilson P45P5S uses a 2014J alternator.

What oil filter fits the FG Wilson P45P5S?

The FG Wilson P45P5S uses oil filter part number 901103.

What air filter does the FG Wilson P45P5S use?

The FG Wilson P45P5S uses air filter part numbers Donaldson P778972, Donaldson P780012.

Fuel consumption

RatingLoadL/hgal/h
Prime47.012.42
Standby17.54.6

Available documents

Spec sheet — P45P5S-P50E5S(1PP)IT(1006) (FG Wilson)Spec sheet — p45p5s-p50e5s(1pp)gb (FG Wilson)Reference — 27-200 kVA Enclosure(GB)(0608) (FG Wilson)Reference — 27-200 kVA Enclosure(GB)(0609) (FG Wilson)Reference — 27-200 kVA Enclosure(IT)(0608) (FG Wilson)
Full service, cheapest listings

Priced items from this model's own parts manual.

Oil filter 901103$39.01
1 priced item$39.01