HomeFG WilsonFG Wilson K12.5-1

FG Wilson K12.5-1 Generator Set

The FG Wilson K12.5-1 is a 8.8 kW (12.5 kVA) standby generator set powered by a Kubota V1505-BG2 engine. It is available at 380/220 V and 400/230 V, 3-phase and 50 Hz. It holds about 6.7 L (1.8 gal) of oil and 6.7 L (1.8 gal) of coolant, with a maximum ambient rating of 50 °C. The set measures 1704×876×1104 mm (67.1×34.5×43.5 in), weighs about 513 kg (1131 lb) and produces 63.5 dBA at 7 m. An integrated tank holds 51 L (13.5 gal). The same V1505-BG2 engine also powers generator sets from Kubota.

8 kW
Standby
1.5 L
Displacement
6.7 L
Oil capacity
3
Document types

How to read your FG Wilson serial & model number →

Specifications

Frequency50.0 Hz
Standby power8 kW
Oil capacity6.7 L
AlternatorLeroy-Somer LL1114D
Voltage options380/220 V, 400/230 V
Phase3
Power factor0.8
Max ambient50 °C
Dimensions (L×W×H)1704×876×1104 mm
Dry weight513 kg
Sound level63.5 dBA @ 7 m
Fuel tank51.0 L

Engine

Kubota V1505-BG2
Oil capacity1.2 L
Coolant capacity6.7 L
Displacement1.5 L
AspirationAspiración natural
Rated speed1800 rpm

Same engine, other brands

1 brand

The Kubota V1505-BG2 in this set also powers 1 generator set sold under 1 other brand. Service parts and maintenance intervals for the engine are shared; enclosure, alternator, controller and ratings are not.

BrandModels
KubotaWPSK-15S

Maintenance & consumables

for the Kubota V1505-BG2
ItemSpecCapacityPart #Interval
Air filterFull Flow Paper Filter1200 hr
Fuel filterN/A1200 hr
Oil filterFull Flow Paper Filter1200 hr
BatteryN/A1200 hr
BeltN/A
Coolant6.0 l
Coolant filter
OilAPI CH4 15W-40
Spark plugN/A

Compatible filters for the Kubota V1505-BG2 — cross-referenced via Donaldson. Options to verify against your serial number, not confirmed for this exact unit.

  • Air filter: Donaldson P778404 Ac Delco A1033C

Common questions

What size generator is the FG Wilson K12.5-1?

The FG Wilson K12.5-1 is rated 8 kW standby.

What engine is in the FG Wilson K12.5-1?

The FG Wilson K12.5-1 is powered by the Kubota V1505-BG2 engine.

How much oil does the FG Wilson K12.5-1 take?

The Kubota V1505-BG2 engine in the FG Wilson K12.5-1 has an oil capacity of 1.2 liters.

What is the coolant capacity of the FG Wilson K12.5-1?

The FG Wilson K12.5-1 cooling system holds 6.7 liters (1.8 US gallons) for the engine, per the manufacturer specification sheet.

How loud is the FG Wilson K12.5-1?

The FG Wilson K12.5-1 is rated at 63.5 dBA at 7 m, per the manufacturer specification sheet.

What is the dry weight of the FG Wilson K12.5-1?

The FG Wilson K12.5-1 has a dry weight of 513 kg (1130 lb).

How big is the fuel tank on the FG Wilson K12.5-1?

The FG Wilson K12.5-1 has a 51 liter (13 US gallon) fuel tank.

What voltages is the FG Wilson K12.5-1 available in?

The FG Wilson K12.5-1 is offered in 380/220 V, 400/230 V, 3-phase.

What alternator comes on the FG Wilson K12.5-1?

The FG Wilson K12.5-1 uses a Leroy-Somer LL1114D alternator.

What air filter does the FG Wilson K12.5-1 use?

The FG Wilson K12.5-1 uses air filter part numbers Donaldson P778404, AC DELCO A1033C.

Parts

2
Part #DescriptionQtySystem
0213/ITCAE Enclosure1Service part / kit buy
LL1114DAlternador1Service part / kit Amazon eBay

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 — 5.5 - 22 kVA CAE Enclosure(ES)(0413) (FG Wilson)Spec sheet — 5.5 - 22 kVA CAE Enclosure(ES)(0512) (FG Wilson)Spec sheet — 5.5 - 22 kVA CAE Enclosure(GB)(0413) (FG Wilson)Spec sheet — 5.5 - 22 kVA CAE Enclosure(GB)(0512) (FG Wilson)Spec sheet — 5.5 - 22 kVA CAL Enclosures(ES)(0613) (FG Wilson)Spec sheet — 5.5 - 22 kVA CAL Enclosures(GB)(0613) (FG Wilson)Spec sheet — 5.5+-+22+kVA+CAE+Enclosure(GB)(0512) (FG Wilson)Spec sheet — K12.5-1(4PP)ES(0512) (FG Wilson)Spec sheet — K12.5-1(4PP)GB(0213) (FG Wilson)Spec sheet — NEW Product Rating(ES)(0213) (FG Wilson)Spec sheet — Options Matrix (ES)(1113c) (FG Wilson)Spec sheet — Options Matrix (IT)(0513) (FG Wilson)Spec sheet — Options+Matrix(GB)(0612) (FG Wilson)Reference — 5.5 - 22 kVA CAE Enclosure(GB)(0113) (FG Wilson)Reference — 5.5 - 22 kVA CAE Enclosure(IT)(0413) (FG Wilson)Reference — 5.5 - 22 kVA CAE Enclosure(IT)(0512) (FG Wilson)Reference — 5.5 - 22 kVA CAL Enclosures(IT)(0613) (FG Wilson)Parts manual — K12.5-1(4PP)PT(0812) (FG Wilson)

This page was generated from the 18 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.