【PACK SIZE】This product is a pack of 1, making it easy to stock up and ensure you have the necessary parts on hand for maintenance. New Holland Track Loader Bottom Rollers Undercarriage parts for Case and New Holland compact track loaders are highly interchangeable and widely used across the entire track loader lineup of both brands. Below are details of this aftermarket replacement bottom roller: I. Core Compatible Models This bottom roller is guaranteed to fit the following Case and New Holland models precisely: New Holland: C175, C180, C185, C190, C195, LT185, LT190, C227, C232, C234, C238, C245, C327, C330, C332, C334, 337 Case: CT420, CT440, CT445, CT450, TR270, TR310(B), TR320, TR340(B), TV370B, TV380, TV450(B) II. Compatible Part Numbers Case Dealer Part Numbers: 47378992, 47378993 New Holland Dealer Part Numbers: 87480419, 87447228, 87535297 Additional Note: This bottom roller also corresponds to part numbers 87480419, 87447228, and 47378992 for Case TR270, TR320, and TV380. III. Product Features and Installation Instructions Ease of Installation: The bottom roller comes as a fully assembled unit, ready for installation upon arrival. Factory bolts can be reused, eliminating the need for additional hardware purchases. Compatibility Guarantee: There are no alternative part numbers, and this bottom roller is confirmed to fit all listed models precisely, ensuring no mismatches. IV. Quality and Durability Features a triple-flange design, manufactured strictly to original specifications. Equipped with high-quality double-lip seals to effectively block dirt and debris while retaining lubricating grease, significantly extending service life and ensuring stable equipment operation. V. Related Undercarriage Parts (Case and New Holland Series) We also supply the following compatible accessories for one-stop procurement: New Holland Sprockets New Holland Rear Idlers New Holland Front Idlers New Holland Bottom Rollers (this product)