This is the bottom track roller for a majority of the Case and New Holland track loaders. This CNH bottom track roller is guaranteed to fit the following serial breaks:
Case: CT420, CT440, CT445, CT450
Case TV 380, TR270, TR310, TR320, TR340
New Holland: C175, C185, C190
New Holland LT185, LT190
New Holland C227, C232, C238
This track roller is also known as part number 87535297 and 87447228 from your Case and New Holland dealer.