New Holland Rear Idler Assembly This rear idler roller is an aftermarket replacement part for New Holland compact track loaders. Its core purpose is to directly replace the original Case New Holland (CNH) part numbers 87535299 and 87480413. No additional assembly is required, and details on its compatibility and product features are as follows: I. Core Compatible Models This rear idler (primarily corresponding to part number 47378988) comes with compatibility assurance and can be installed without modifications. It is specifically compatible with the following New Holland models: C Series: C175, C180, C185, C190, C195, C227, C232, C234, C237, C238, C245, C330, C332, C334, C337 LT Series: LT185, LT190 II. Product Positioning & Differentiation Between Front and Rear Idlers Installation Position Definition This rear idler is installed at the rear of the equipment's undercarriage, specifically below the sprocket. It is the "rearmost" roller in the entire undercarriage, responsible for guiding and supporting the rear section of the track. Key Differences from Front Idlers Size Variation: The front idler is slightly larger in size than this rear idler; Opposite Installation Positions: The front idler is located at the "forwardmost" position of the undercarriage; Non-Interchangeable: The two differ completely in specifications and compatible positions. Interchangeability is strictly prohibited. Before placing an order, be sure to confirm that your requirement is for a "rear" component. III. Installation Instructions Assembly Status: The rear idler comes as a fully assembled finished product. No disassembly or self-assembly is needed upon receipt—you can prepare for installation immediately after unboxing; Fixing Method: It adopts a "dual-side bolt fastening" design, requiring 2 bolts in total (1 on each side), and is directly installed on the rear of the track frame; Hardware Note: The product shipment does not include installation hardware (such as bolts). You must reuse the original factory bolts from your equipment. We recommend checking whether the old bolts are in good usable condition before placing an order. IV. Alternate Part Numbers Corresponding to the official dealer part numbers of Case and New Holland, the following models have identical specifications to this rear idler and can be used interchangeably: Case Dealer Part Number: 47378988 New Holland Dealer Part Numbers: 87535299, 87480413, CA928 V. Note on Compatibility Uniqueness For the compatible models listed above, there are currently no other optional or alternative rear idler models. This product is the only compatible option and comes with clear installation compatibility assurance, so you can purchase with confidence. VI. Quality Assurance This New Holland single-flange rear idler assembly is manufactured in strict compliance with original equipment technical specifications, with core quality advantages including: Sealing Protection: Equipped with high-quality double-lip seals, which can effectively block external dust and debris from entering the idler while securely retaining internal lubricant, avoiding premature wear of components caused by lubricant loss; Durability: Through the dual protection of sealing and lubrication, the service life of the idler is effectively extended, ensuring the equipment maintains stable operation during work. VII. Supply of Related Supporting Undercarriage Parts To meet one-stop maintenance and procurement needs, we also supply the following supporting undercarriage parts for Case New Holland construction equipment: Sprockets: New Holland-specific sprockets (compatible with corresponding models) Idlers: New Holland front idlers, New Holland rear idlers (including this model) Bottom Rollers: New Holland bottom rollers (complete range of specifications available)