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Caterpillar APU Fan Belt

Power Tech Mobile Generator Caterpillar APU Fan Belt

Replacement fan belt for a Caterpillar 5kw APU.  The APU truck generator has a two belt system.  It has a drive belt for the generator and a fan belt.  This belt is for the Caterpillar model APU only.  It will not work with the Kubota APU model.


Finding what engine is on your Power Tech generator.

Power Tech serial numbers are usually located on the control box or outside the enclosure. This depends on the make and model of the generator and when it was made.  On generators pre-1999, it could be stamped on the generator end.

Breaking down the serial number.

Serial numbers usually look something like this: CES09DDD1234APU

For this part, your Power Tech serial number should start with "CES"

The Power Tech Mobile Generator Part Number: 03BF5CP