HomeKohlerKohler PRO6.4

Kohler PRO6.4 Generator Set

The Kohler PRO6.4 is a 6.4 kW (5200 kVA) Unleaded Gasoline up to E10 standby generator set powered by a Kohler Command PRO engine. It is available at 120/240 V, 60 Hz and rated 21.7 A. The set measures 747×544×566 mm (29.4×21.4×22.3 in) and weighs about 90 kg (198 lb). An integrated tank holds 30 L (7.9 gal), roughly 15 hours of runtime.

6 kW
Standby
0.277 L
Displacement
3
Document types

How to read your Kohler serial & model number →

Specifications

FuelUnleaded Gasoline up to E10
Frequency60.0 Hz
Standby power6 kW
Standby kVA5200
Prime power5 kW
EmissionsEPA 49-State
Voltage options120/240 V
Rated current21.7 A
Dimensions (L×W×H)747×544×566 mm
Dry weight90 kg
Fuel tank30.0 L
Tank runtime15 hr

Engine

Kohler Command PRO
Displacement0.277 L
Rated speed3600 rpm

Filters & service parts

model family
ItemSpecCapacityPart #Interval
Air filter find
Fuel filter find
Oil filter find
Belt find
Coolant
Oil

Compiled from this model's family documentation — may include parts for closely-related variants. Confirm the exact part for your serial number.

Common questions

What is the power rating of the Kohler PRO6.4?

The Kohler PRO6.4 is rated 6 kW standby (5200.0 kVA).

What engine does the Kohler PRO6.4 use?

The Kohler PRO6.4 is powered by the Kohler Command PRO engine.

What fuel does the Kohler PRO6.4 use?

The Kohler PRO6.4 runs on Unleaded Gasoline up to E10.

Troubleshooting

6

Symptoms & remedies

SymptomCauseRemedy
No AC outputCircuit breaker in OFF position.Switch circuit breaker to ON.
Engine not operating at rated RPMAdjust engine running at normal operating temperature to 3750 ± 100 RPM.
Circuit breaker or receptacles faultyTest for voltage at circuit breaker and receptacles.
Stator is faultyTest for voltage and resistance.
Brushes are faultyTest for resistance between brushes and slip ring.
AVR is faultyTest for voltage. Replace AVR with a new AVR. Start engine and adjust trimmer on back of AVR. Test terminal voltage. Voltage should be between 95-135V.

Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.

Parts

2
Part #DescriptionQtySystem
WP2.02-inch water pump1Pump PartsGeek
WP3.03-inch water pump1Pump PartsGeek

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

Brochure — Tri Fuel Expansion (Kohler)Brochure — tri-fuel accessory launch uspec update (Kohler)Spec sheet — g3073 (Kohler)Service manual — tp7088 (Kohler)