Shop OEM General Motors Part # 12654271. Accessory Drive Belt Tensioner Assembly. 2018-24. 6.6 LITER GAS. 6.6 LITER GAS, W/DUAL ALTERNATORS. 6.6 LITER GAS, W/O DUAL ALTERNATORS

Tensioner. Belt. Assembly - Drive. Accessory Drive Assembly. Serpentine.
Assembled device that applies load to the Drive Belt.

Accessory Drive Belt Tensioner Assembly

Fits Express 2500, Express 3500, Savana 2500, Savana 3500, Sierra 2500 HD, Sierra 3500 HD, Silverado

2018-24. 6.6 LITER GAS. 6.6 LITER GAS, W/DUAL ALTERNATORS. 6.6 LITER GAS, W/O DUAL ALTERNATORS. Express 2500; 4.3L. Express 2500; 6.6L. Express 3500; 4.3L. Express 3500; 6.6L. Express, Savana; 4.3L. Savana 2500; 4.3L. Savana 2500; 6.6L. Savana 3500; 4.3L. Savana 3500; 6.6L. Silverado, Sierra 2500 HD; Gas. Silverado, Sierra 3500 HD; Gas.
Drive Belt Tensioner - Repair or Replace
A squeaking or squealing noise from your engine bay is usually due to a loose drive belt. Consider replacing the drive belt tensioner on your .