Pulley Assembly - Idler

Part# 285-0277 OLD# 2850277

Pulley Assembly - Idler

Ships within 72 hours
The product isn't available for international shipping

Cat® Idler Pulley Assembly (Grooved)

- Big Rig World carries Genuine OEM and Aftermarket parts to repair your vehicle at the lowest prices.

Cat idler pulleys are designed and tested to deliver the quality you expect from your equipment. Cat idler pulleys are responsible for guiding and tensioning the engine belt drives. They are also used to reduce belt vibrations by supporting a segment of belt prone to vibrations.

• 12 groove idler pulley
• Assembly includes mounting hardware

Cat idler pulleys are used to support engine belt drives around the various engine components, such as tensioner assembly and compressor assembly. Consult your owner’s manual or contact your local Cat Dealer for more information.


  • Outside Diameter (in): 2.9
  • Overall Height (in): 2.6
⚠️ WARNING: This product can expose you to chemicals including Lead and lead compounds, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Dealer Territory Limited

More Information
Current Part# 285-0277
Old Part No.: 2850277
Manufacturer CAT
Stock Available
Ship time unit Hours
Hot Deals No
Fits CAT
Type OEM
Warranty Standard Manufactures

Note: Cat® parts shipped within the United States only.

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