HomeKohlerKohler K27U

Kohler K27U Generator Set

The Kohler K27U is a 25.4 kW standby generator set powered by a Kohler S4Q2-SD engine. It operates at 60 Hz. It holds about 6.5 L (1.7 gal) of oil. The set measures 2080×960×1415 mm (81.9×37.8×55.7 in) and weighs about 930 kg (2050 lb). An integrated tank holds 100 L (26.4 gal).

25 kW
Standby
2.91 L
Displacement
6.5 L
Oil capacity
1
Document types

How to read your Kohler serial & model number →

Specifications

Frequency60.0 Hz
Standby power25 kW
EmissionsStage IIIA
Oil capacity6.5 L
AlternatorAT00404TO4N
Dimensions (L×W×H)2080×960×1415 mm
Dry weight930 kg
Fuel tank100.0 L

Engine

Kohler S4Q2-SD
Oil capacity6.5 L
Displacement2.91 L

Filters & service parts

model family
ItemSpecCapacityPart #Interval
Fuel filterChange Oil, Oil Filter, Fuel Filter & Check Belt Tension500 hr
Oil filterChange Oil, Oil Filter, Fuel Filter & Check Belt Tension500 hr
BatteryCheck Battery Electrolyte Level50 hr
BeltChange DC Alternator Belt. Check Starter & DC Alternator, Retighten Nuts and Bolts2000 hr
OilChange Oil, Oil Filter, Fuel Filter & Check Belt Tension10.6 L500 hr
Spark plugAdjust Belt Tension, Valve Clearance, Clean Vent tube, Change Air Filter1000 hr

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 size generator is the Kohler K27U?

The Kohler K27U is rated 25 kW standby.

Which engine powers the Kohler K27U?

The Kohler K27U is powered by the Kohler S4Q2-SD engine.

What is the oil capacity of the Kohler K27U?

The Kohler S4Q2-SD engine in the Kohler K27U has an oil capacity of 6.5 liters.

What alternator does the Kohler K27U use?

The Kohler K27U uses a AT00404TO4N alternator.

Available documents

Engine spec — K20 K22 SDMO (Kohler)
Other sets with this engine