9S7221 Idler Assembly for Caterpillar Equipment

The 9S7221 is an idler assembly for tracked equipment manufactured by Caterpillar. It is installed in the undercarriage of track-type tractors and track loaders, where it forms part of the track assembly. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The part is identified by SKU 9S7221 and is listed for Caterpillar machines in the track-type tractor and track loader categories. The supplied fitment information includes several Caterpillar machine models and series. Confirm the machine model, serial number, and the dimensions of the installed component before ordering or installation, because undercarriage parts may vary between machine configurations.

Fitment

• Caterpillar 183B track-type tractor
• Caterpillar 8D track-type tractor
• Caterpillar 8S track-type tractor
• Caterpillar D8H track-type tractor
• Caterpillar D8K track-type tractor
• Caterpillar 983 track loader
• Caterpillar 983B track loader

The listed application covers Caterpillar track-type tractors and track loaders. The 183B, 8D, 8S, D8H, and D8K designations refer to track-type tractor models or series in the supplied application data. The 983 and 983B designations refer to Caterpillar track loader models. No additional machine models are included in the available fitment information.

Cross-reference numbers

The 9S7221 idler assembly is also associated with the following part numbers and interchange references:

• 1S2311
• 1885610
• 8A7850
• 9H7753
• 9S7463
• 9M2484
• 9S7221A
• 9S-7221

These references are provided for part identification and catalog matching. The SKU for this listing is 9S7221. Part-number formatting may differ between catalogs, including the use of a hyphen in 9S-7221.

Specifications

The dimensions listed for the assembly are 86 cm in length, 86 cm in width, and 25 cm in depth. The stated weight is 510 lb. These values describe the complete idler assembly as listed, rather than an individual internal component. The available data does not specify the material, mounting hardware, bearing details, lubrication requirements, or additional items included with the assembly.