Buy the aftermarket Caterpillar 304.5, 305.5 replacement tension idler assembly online at Pentom Parts and save time and money. This is a complete replacement idler fully assembled.
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.
Pentom Supply now carries the complete undercarriage for the Caterpillar® 304.5 mini excavator including the rubber tracks.