Caterpillar 304.5 304CR 305CR Top Carrier Rollers

New undercarriage parts and rubber tracks are sold individually but we suggest replacing all of your worn parts at the same time.

This is a potential replacement aftermarket top carrier roller for the following Caterpillar mini excavators:

Cat 304
Cat 304.5
Cat 305.5
Cat 304CR
Cat 305CR

This top roller is not designed to replace the upper carrier roller on the Caterpillar CCR series mini excavators This carrier roller comes completely assembled including the shaft. There are two carrier rollers per machine, one on each side but you must verify that your top roller looks exactly like this top roller with a smooth rounded shaft. If your top roller requires a groove for a clip to mount to then this roller will not fit your serial break. Some Cat models require the smooth shaft, and some require a grooved shaft. See the following specifications and see our part number 265-7675 below for comparison.

Please verify the following specs for 172-1764 before purchasing:

Body: 4 3/4 Inches
Overall: 7 1/4 Inches
Shaft Diameter: 1 1/8 Inches
Body Diameter: 3 1/4 Inches

Please verify this is exactly what your roller looks like. There is an alternate version with a grooved shaft 265-7675.

Alternate Part Number:	Cat dealer part number: 172-1764, 10C0176AY3
Alternate Models:	Cat: 304, 304.5, 305.5, 304CR, 305CR
Alternate Part:	There is also a notched version of this roller under part number 265-7675.

Caterpillar® 304.5 305.5 304CR 305CR Upper Carrier Roller

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