Belt Tensioner Assembly for Chevy Silverado 1500, GMC Sierra 3500 (2003–2007)
Belt Tensioner Assembly for Chevy Silverado 1500, GMC Sierra 3500 (2003–2007)
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Includes:
- Belt Tensioner Assembly
Fits Models:
- Chevrolet Silverado 1500
- GMC Sierra 3500
Model Years:
- 2003–2007
Submodels:
- Common trims include WT (Work Truck), LS, LT, LTZ for Silverado; SLE, SLT for Sierra
- Chassis codes: GMT800 for Silverado and GMT900 for Sierra
- Body styles: Crew Cab, Extended Cab, Regular Cab
Engine Options:
- Common engine sizes include 4.3L V6, 4.8L V8, 5.3L V8, 6.0L V8, and 6.6L Duramax Diesel
- Engine codes: L33, L59, LY2, L76, LBZ
Description:
This Belt Tensioner Assembly is designed for the Chevrolet Silverado 1500 and GMC Sierra 3500 models from 2003 to 2007. It ensures proper tension on the serpentine belt, maintaining optimal engine performance and accessory operation.
Features:
- Direct fit replacement for easy installation
- Durable construction for long-lasting performance
- Designed to meet or exceed OEM specifications
- Reduces belt slippage and noise
- Compatible with multiple engine options

Delivered in 5–15 business days