The Cat® 304 and 305 series use interchangeable idlers and part numbers 240-6304 and 241-5972 are known to be interchangeable on these models. This is the aftermarket replacement tension idler designed for the following Caterpillar® mini excavators:
This is the larger idler roller on the opposite end of the undercarriage from the sprocket. There are two idlers per machine, one on each side.
We now carry the complete undercarriage for the Caterpillar® 304.5 mini excavator including the rubber tracks.
Free shipping from one of our seven warehouses.*
* Restrictions apply. See details at checkout.