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Cummins/Onan X3.6TAA-G1 Engine

The Cummins/Onan X3.6TAA-G1 is a 3.6 L 4-cylinder turbocharged, charge air cooled engine rated at 1500 rpm, producing up to 99.9 kW. It powers generator sets from Cummins/Onan, including the X3.6 Series C35D5P and X3.6 Series C40D5P.

Also known as: Cummins® X3.6TAA-G1

3.6 L

Displacement

Cylinders

1500 rpm

Rated speed

99 kW

Gross power

On this pageSpecs Generator sets Maintenance FAQ

Engine specifications

Displacement	3.6 L
Cylinders	4
Aspiration	Turbocharged, Charge Air cooled
Rated speed	1500 rpm
Gross power	99 kW

Generator sets powered by this engine

Cummins/Onan X3.6 Series C35D5PCummins/Onan X3.6 Series C40D5PCummins/Onan X3.6TAA-G1

How to read your Cummins/Onan engine serial & model number →

Maintenance schedule

Item	Spec	Capacity	Part #
Air filter	Dry type, Replaceable paper element air cleaner with restriction indicator		—
Fuel filter	Spin on fuel filter		—
Oil filter	Full flow spin on lube oil filter		—
Battery	1 x 12 V DC battery		—
Belt	Aluminum bus bars with suitable capacity with incoming/outgoing terminals, Circuit breakers of suitable rating with overload and short circuit protections		—
Oil	CH4 15W40	6.5 l	—

Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.

Common questions

What is the displacement of the Cummins/Onan X3.6TAA-G1?

The Cummins/Onan X3.6TAA-G1 has a displacement of 3.6 liters with 4 cylinders.

Which generators use the Cummins/Onan X3.6TAA-G1 engine?

The Cummins/Onan X3.6TAA-G1 powers 3 generator set(s), including Cummins/Onan X3.6 Series C35D5P, Cummins/Onan X3.6 Series C40D5P, Cummins/Onan X3.6TAA-G1.