Chevy GMC Air Conditioning Serpentine Drive Belt Tensioner Kit For Silverado Avalanche Suburban Tahoe Express Savana Sierra Yukon Cadillac Escalade 1999 2008 Replacement Replaces 90K 38159 Easy Install
✔️ Replacement A/C tensioner pulley kit for Silverado, Tahoe, Escalade
This replacement A/C tensioner pulley kit is designed to restore correct belt tension across a wide range of GM, Cadillac, GMC, and Hummer models from 1999 to 2008. It supports popular vehicles including Silverado, Suburban, Avalanche, Express, Savana, Sierra, Yukon, Escalade and H2 family setups.
✅ Fits GMC Savana 1500/2500/3500 2003-2008
✅ Fits Sierra 1500 1999-2008 and Sierra 2500/HD 1999-2008
✅ Fits Cadillac Escalade 2002-2008 and Escalade ESV 2003-2008
✅ Fits Hummer H2 2003-2008
✅ Part numbers: 90K-38159; 19311139; 12562065; 12565372
💡 What is a belt tensioner kit used for in automotive drive systems?
In short, a belt tensioner kit keeps the serpentine belt tight, so accessories like the alternator and A/C compressor run smoothly without slipping.
- Helps prevent belt noise and wear by maintaining proper tension under load
- Ensures pulley alignment across multiple GM, Cadillac, and GMC platforms
- Supports reliable operation of cooling and charging systems during daily driving