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Home›Engines›Cummins/Onan 4B3.9-G2

Cummins/Onan 4B3.9-G2 Engine Engine

Part of the Cummins/Onan 4B3.9 engine family — 3 variants share parts & fitment.

Engine specifications

Displacement3.9 L
Cylinders4
AspirationNatural
Rated speed1500 rpm
Gross power27 kW

Equipment powered by this engine

15
Kubota KX040-4Kubota KX040-4CAKubota L3302Kubota L3302HKubota L3540GSTKubota L3540HSTKubota L3540HST-3Kubota L3540HSTCKubota L3830DTKubota L3830FKubota L3830GSTKubota L3830HSTKubota L39Kubota L3902Kubota L3902H

Parts cataloged across the Cummins/Onan 4B3.9 family

8
Part #DescriptionCategory
FS-1698FUEL FILTERSfuel_filter
LS-11167OIL FILTERoil_filter
928-0502Bother_service
928-0506other_service
960-0135other_service
960-0504Aother_service
960-0505other_service
960-12other_service

Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.

Also powers generators

This engine powers 11 generator set(s) on Facts About Generators — same parts apply.

Common questions

What equipment uses the Cummins/Onan 4B3.9-G2 engine?

The Cummins/Onan 4B3.9-G2 engine powers 15 machine(s), including Kubota KX040-4, Kubota KX040-4CA, Kubota L3302, Kubota L3302H, Kubota L3540GST.

What is the displacement of the Cummins/Onan 4B3.9-G2?

The Cummins/Onan 4B3.9-G2 has a displacement of 3.9 liters.