Automatic Serpentine Belt Tensioner Pulley Assembly - Replaces 38158, 88929140 - Compatible with Chevy, GMC & Other GM Vehicles - Avalanche, Silverado, Trailblazer, Sierra, Tahoe, Yukon, Escalade

Description

⚙️ Keep your GM running smooth — tension perfected, power delivered.

This Automatic Serpentine Belt Tensioner Pulley Assembly by AA Ignition is a direct-fit replacement for OEM parts 38158 and 88929140, compatible with a wide range of Chevy, GMC, and GM vehicles from 1999 to 2008. Featuring a torsional spring design for consistent belt tension, it ensures reliable power delivery to critical engine components like the alternator, power steering, and AC. Engineered for durability and backed by a lifetime warranty, it offers a cost-effective alternative to dealer parts without sacrificing quality or fit.