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FG Wilson P11-4S- Generator Set

The FG Wilson P11-4S- is a 11 kW (11 kVA) diesel standby generator set powered by a Perkins 403D-15G engine. It is available at 220 V, 3-phase and 50 Hz. It holds about 4 L (4.2 US qt) of oil and 5 L (1.3 gal) of coolant. The same 403D-15G engine also powers generator sets from Lees and Perkins.

11 kW
Standby
1.0 L
Displacement
4.0 L
Oil capacity
1
Document types

How to read your FG Wilson serial & model number →

Typical fuel consumption for 10–15 kW Diesel generators →

Compare with other 10–15 kW Diesel generators →

Service parts for the P11-4S-

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

Oil system

1 required
Equivalents: DONALDSON P554407, BALDWIN BT237, NAPA 1459

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

Specifications

Fueldiesel
Frequency50.0 Hz
Standby power11 kW
Standby kVA11
Prime power10 kW
ControllerTipo
Oil capacity4 L (4.2 US qt)
Voltage options220 V, 240 V
Phase3

Engine

Perkins 403D-15G
Oil capacity4 L (4.2 US qt)
Coolant capacity5.0 L
Displacement1.0 L
AspirationNormal
Rated speed1500 rpm

Filters for the Perkins 403D-15G

1

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 filterP550335Lube Filter, Spin-On Full FlowPERKINS 140517000, PERKINS 915155, NAPA 1348, NAPA 400068 KuduParts $97.00 FridayParts $114.25

Same engine, other brands

2 brands

The Perkins 403D-15G in this set also powers 2 generator sets sold under 2 other brands. Service parts and maintenance intervals for the engine are shared; enclosure, alternator, controller and ratings are not.

BrandModels
LeesLSP14S3
Perkins403D-15

Maintenance & consumables

for the Perkins 403D-15G
ItemSpecCapacityPart #Interval
Air filter—1500 hr
Fuel filterReplaceable Element 3 / In Line—30 hr
Oil filterHacer girar-En, Flujo completo9011031500 hr Amazon eBay $39.01 NAPA $18.35 KuduParts $25.00
Battery×1—
Belt—
Coolant6.0 L—
Oil4 L (4.2 US qt)—500 hr
Spark plug—

Compatible filters for the Perkins 403D-15G — cross-referenced via Donaldson. Options to verify against your serial number, not confirmed for this exact unit.

  • Air filter: Fg Wilson 901046 Fg Wilson 901036 Perkins 26510362 Perkins PI02739 Perkins 26510289

Common questions

What size generator is the FG Wilson P11-4S-?

The FG Wilson P11-4S- is rated 11 kW standby (11.0 kVA).

What engine does the FG Wilson P11-4S- use?

The FG Wilson P11-4S- is powered by the Perkins 403D-15G engine.

What kind of fuel does the FG Wilson P11-4S- run on?

The FG Wilson P11-4S- runs on diesel.

What is the oil capacity of the FG Wilson P11-4S-?

The FG Wilson P11-4S- takes 4 L (4.2 US qt) of engine oil (Perkins 403D-15G engine specification).

What is the cooling system capacity of the FG Wilson P11-4S-?

The FG Wilson P11-4S- cooling system holds 5 liters (1.3 US gallons) for the engine, per the manufacturer specification sheet.

What is the continuous rating of the FG Wilson P11-4S-?

The FG Wilson P11-4S- is rated 10 kW prime (10 kVA), against 11 kW standby.

What voltage does the FG Wilson P11-4S- produce?

The FG Wilson P11-4S- is offered in 220 V, 240 V, 3-phase.

Which oil filter part number does the FG Wilson P11-4S- take?

The FG Wilson P11-4S- uses oil filter part number 901103. Equivalents: DONALDSON P554407, BALDWIN BT237, NAPA 1459.

What air filter fits the FG Wilson P11-4S-?

The FG Wilson P11-4S- uses air filter part numbers FG WILSON 901046, FG WILSON 901036.

Parts

12
Part #DescriptionQtySystem
403D-15Inlet valves2Oil filter Amazon eBay $31.20 FridayParts $10.50 SinoCMP $129.00
SSBU8311-03Ajuste del juego de las válvulas (escape)13Adjustment Amazon eBay
0213/ITCAE Enclosure1Service part / kit buy
131437541Shim, beaded, 0.2 mm1Service part / kit Amazon eBay
131437551Shim, beaded, 0.3 mm1Service part / kit Amazon eBay
131437561Shim, beaded, 0.4 mm1Service part / kit Amazon eBay
131437571Shim, beaded, 0.5 mm1Service part / kit Amazon eBay
131437580Shim, non-beaded, 0.5 mm1Service part / kit Amazon eBay
263-0765silenciador1Service part / kit Amazon eBay
P13.5-4Bisagras de zinc negro. Probadas y garantizadas a prueba de condiciones altamente corrosivas86Service part / kit buy
P200-2SilenciadorService part / kit Amazon eBay NAPA $10.64
P26-1STwo large doors on each side2Service part / kit Amazon eBay $117.00

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.

Available documents

Spec sheet — P11-4S-(4PP)ES(0910) (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