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FG Wilson P58P1S Generator Set

The FG Wilson P58P1S is a 58 kW (58 kVA) standby generator set powered by a Perkins 1104A-44TG2 engine. It is available at 220 V and 240 V, single-phase and 50 Hz. It holds about 53 L (14.0 gal) of oil and 207 L (54.7 gal) of coolant. The set measures 2275×1100×1614 mm (89.6×43.3×63.5 in), weighs about 1103 kg (2432 lb) and produces 69.2 dBA at 7 m. An integrated tank holds 245 L (64.7 gal). The same 1104A-44TG2 engine also powers generator sets from AKSA, Caps, Erga, Generac, Lees, Multiphase Power and Perkins.

58 kW
Standby
4.4 L
Displacement
53.0 L
Oil capacity
2
Document types

How to read your FG Wilson serial & model number →

Service parts for the P58P1S

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 power58 kW
Standby kVA58
Oil capacity53.0 L
Alternator3014B
Voltage options220 V, 240 V
Phase1
Dimensions (L×W×H)2275×1100×1614 mm
Dry weight1103 kg
Wet weight1478 kg
Sound level69.2 dBA @ 7 m
Fuel tank245.0 L

Engine

Perkins 1104A-44TG2
Oil capacity53.0 L
Coolant capacity207.0 L
Displacement4.4 L
AspirationTurbo
Rated speed1500 rpm

Maintenance & consumables

for the Perkins 1104A-44TG2
ItemSpecCapacityPart #Interval
Air filterReplaceable Element1200 hr
Fuel filterReplaceable Element1200 hr
Oil filter9011031200 hr Amazon $41.50 eBay $39.01 KuduParts $25.00
Battery12/Negative1200 hr
Belt1200 hr
Coolant1200 hr
Coolant filter
OilAPI CG4 / CH4 15W-40
Spark plug1200 hr

Compatible filters for the Perkins 1104A-44TG2 — 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

How many kW is the FG Wilson P58P1S?

The FG Wilson P58P1S is rated 58 kW standby (58.0 kVA).

What engine is in the FG Wilson P58P1S?

The FG Wilson P58P1S is powered by the Perkins 1104A-44TG2 engine.

How much oil does the FG Wilson P58P1S take?

The Perkins 1104A-44TG2 engine in the FG Wilson P58P1S has an oil capacity of 53.0 liters.

Which alternator is fitted to the FG Wilson P58P1S?

The FG Wilson P58P1S uses a 3014B alternator.

Which oil filter part number does the FG Wilson P58P1S take?

The FG Wilson P58P1S uses oil filter part number 901103.

Which air filter part number does the FG Wilson P58P1S take?

The FG Wilson P58P1S uses air filter part numbers Donaldson P778972, Donaldson P780012.

Fuel consumption

RatingLoadL/hgal/h
Prime57.815.27
Standby226.059.7

Available documents

Spec sheet — P58P1S-P64E1S(1PP)IT (FG Wilson)Spec sheet — P58P1S-P64E1S(1pp) (FG Wilson)Spec sheet — p58p1s-p64e1s(1pp)gb (FG Wilson)Reference — 27-110 kva sa&ssa mobile enclosure(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)Reference — FR Product Rating Summary (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