HomeEnginesCummins/Onan 4B3.3 series

Cummins/Onan 4B3.3 series Engine Engine

The Cummins/Onan 4B3.3 series is a 3.3 L turbocharged after-cooled engine. It powers generator sets from Cummins/Onan, including the C40D6, C44D5R, C60D6 and C66D5R.

Part of the Cummins/Onan 4B3.3 engine family — 2 variants share parts & fitment.

3.3 L
Displacement

Engine specifications

Displacement3.3 L
Aspirationturbocharged after-cooled

Generator sets powered by this engine

4
Cummins/Onan C40D6Cummins/Onan C44D5RCummins/Onan C60D6Cummins/Onan C66D5R

Parts cataloged across the Cummins/Onan 4B3.3 family

10
Part #DescriptionCategory
98012-048C-GBHose reel with 20 m [66 ft] 3/4"-hosehose
98012-046C-GBIntegrated aftercooler with automatic condensate drainother_service
98012-047C-GBAftercooler together with ultra-fine filtersother_service
98012-049C-GBBase mount for mounting on trucksother_service
98012-050C-GBSkid mount for stationary site installationother_service
98012-051C-GBVarious chassis versions availableother_service
98012-052C-GBCatch pan for fluidsother_service
98012-053C-GBVariety of towing eyes NATO, 40 mm DIN, 50 mm ball head etc. for passenger cars and trucksother_service
98012-054C-GBGenerator with automatic idle run: 7 kVA 110 V, 8 kVA 230 V/400 V or 12 kVA 230 V/400 V enable the additional operation of electrical itemsother_service
98012-045C-GBCompressor oil thermostatic valvethermostat

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

Common questions

What is the displacement of the Cummins/Onan 4B3.3 series?

The Cummins/Onan 4B3.3 series has a displacement of 3.3 liters.

Which generators use the Cummins/Onan 4B3.3 series engine?

The Cummins/Onan 4B3.3 series powers 4 generator set(s), including Cummins/Onan C40D6, Cummins/Onan C44D5R, Cummins/Onan C60D6, Cummins/Onan C66D5R.