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Caterpillar 3406 Generator Set

The Caterpillar 3406 is a 240 kW (500 kVA) Diesel standby generator set powered by a Caterpillar 3406C TA engine. It is available at 120/208 V and 208/240 V, 3-phase, 60 Hz and rated 56.7 A. It holds about 40 L (10.6 gal) of oil and 23.5 L (6.2 gal) of coolant, with a maximum ambient rating of 76.66 °C. The set measures 1634×64.3×833 mm (64.3×2.5×32.8 in) and weighs about 1356 kg (2989 lb).

240 kW
Standby
14.64 L
Displacement
40.0 L
Oil capacity
3
Document types

Specifications

FuelDiesel
Frequency60.0 Hz
Standby power240 kW
Standby kVA500
Prime power275 kW
ControllerEMCP
Oil capacity40.0 L
Voltage options120/208 V, 208/240 V
Phase3
Rated current[56.7, 64, 71] A
Power factor0.8
Circuit breaker[90, 100, 110] A
Coolant capacity23.5 L
Max ambient76.66 °C
Dimensions (L×W×H)1634×64×833 mm
Dry weight1356 kg

Engine

Caterpillar 3406C TA
Displacement14.64 L
AspirationTA
Rated speed1500 rpm

Parts

2
Part #DescriptionQtySystem
M-3639022Gasket Set - Central & Lower1Gasket buy
P-36Engine Brake Housing Assembly Group FrontService part / kit buy

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.

Fuel consumption

RatingLoadL/hgal/h
Prime75%16.3
Prime100%20.8
Standby25%24.66.5
Standby50%38.510.2
Standby75%53.914.2
Standby100%69.418.3

Available documents

Engine specSpec sheetService manual