Buy 366-2992 - Genuine CAT Belt Tensioner Assembly - wisentpartscenter.com

Description

Genuine CAT 366-2992 Belt Tensioner Assembly maintains the working tension of the engine accessory belt as belt length, engine speed, and accessory load change. The spring-loaded tensioner keeps the belt seated against the drive pulleys so the accessory system can operate without excessive slip or belt movement.

Documented Cat Engine Applications: C9.3, C9.3B, 3516B
Other Cat Applications Listed: TR35, TR35E44-C9.3B, TR35E44-C9.3BL

Verify fitment with us before ordering to ensure the correct part for your application.

Purpose of the Part

The 366-2992 applies continuous spring force to the accessory belt so the belt can transfer power reliably between the crankshaft and the components it drives. The tensioner also allows controlled movement as the belt stretches and loads change, instead of holding the belt at one fixed position.

Issue Symptoms / When to Replace

A worn tensioner may allow the belt to flutter, squeal, walk toward the edge of a pulley, or lose tension under changing engine speed. Excessive movement in the tensioner arm, pulley bearing noise, or uneven belt wear can also point to a tensioner problem. If a belt repeatedly wears or comes off, pulley alignment and the driven accessories should be checked along with the tensioner.

Brand Information

Caterpillar was formed in 1925 when Holt Manufacturing Company and C.L. Best Tractor Co. merged, and the company has since become a major manufacturer of construction, mining, and off-highway engine equipment.

Installation Notes

If the old belt shows edge wear or abnormal tracking, correct any pulley or accessory-drive alignment problem before installing the replacement tensioner.

How to Identify an OEM Part

A genuine unit can be identified by the CAT marking and the 366-2992 part number permanently cast into the tensioner housing.

Why Buy 366-2992 from Wisent Parts

  • ⏱️
    Fast shipping
    Orders before 12PM EST ship same business day.
  • 🛡️
    180-day warranty
    All parts covered from delivery date.
  • ↩️
    Easy returns
    30-day returns.
  • ✅
    Verify fitment
    Send VIN/ESN and we’ll confirm.

Shop with confidence

Warranty & Return Information
Warranty Information

Wisent Parts offers a 180-day warranty on all parts from the date of delivery. This warranty covers orders placed directly through our website. If a part fails during this period, we’re here to help - whether it’s a replacement, repair, or refund. For full details, refer to the Warranty page.

Return Information

Wisent Parts accepts returns within 30 days of delivery. All returns are subject to a restocking fee. To qualify, parts must be unused and in their original condition. For full return instructions and restocking fee details, please refer to the Returns page.