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Gillette SP-250 Generator Set

The Gillette SP-250 is a 25 kW (104 kVA) LPG/NG standby generator set powered by a mlengine SP-250 engine. It is available at 25/25 V, single-phase.

25 kW
Standby
3.0 L
Displacement
1
Document types

Typical fuel consumption for 25–30 kW Bi-Fuel (NG/LP) generators →

Compare with other 25–30 kW Bi-Fuel (NG/LP) generators →

Specifications

FuelLPG/NG
Standby power25 kW
Standby kVA104
Prime power25 kW
ControllerSentinel “Command” Programmable Digital
AlternatorMarathon SP-250, SP-300, SP-410, SP-520, SP-620, SP-8005N, SP-960, SP-1200, SP-1500, SP-2000, SP-2650, SP-3000, SP-3500, SP-4000, SP-4250 (4-pole)
Voltage options25/25 V
Phase1

Engine

mlengine SP-250
Displacement3.0 L
AspirationPSI/GM

Common questions

How many kW is the Gillette SP-250?

The Gillette SP-250 is rated 25 kW standby (104.0 kVA).

Which engine powers the Gillette SP-250?

The Gillette SP-250 is powered by the mlengine SP-250 engine.

What fuel does the Gillette SP-250 use?

The Gillette SP-250 runs on LPG/NG.

What alternator comes on the Gillette SP-250?

The Gillette SP-250 uses a Marathon SP-250, SP-300, SP-410, SP-520, SP-620, SP-8005N, SP-960, SP-1200, SP-1500, SP-2000, SP-2650, SP-3000, SP-3500, SP-4000, SP-4250 alternator. It has 4 poles.

Available documents

Spec sheet — 217754-347861.sp-dry-fuel-models (Gillette)Spec sheet — 243730-739572.sp-dry-fuel-models-72915 (Gillette)
A real unit
Gillette SP-250 generator

Photo of a real Gillette SP-250 — from a surplusrecord.com listing, 2026.

Real-unit nameplate
Gillette SP-250 generator nameplate / data tag

Nameplate from a real Gillette SP-250 — from a surplusrecord.com listing, 2026. How to read one →