Alliant Power AP63449 Accessory Drive Belt Tensioner maintains proper belt tension on 6.6L Duramax diesel engines to help keep belt-driven accessories operating correctly. The tensioner helps reduce belt slip, maintain consistent belt tracking, and minimize excess vibration during engine operation.
Its OE-style design provides dependable tension throughout the belt's service range, making it a reliable replacement for a worn, noisy, or failing factory tensioner. Proper belt control also helps protect accessory pulleys and related drive components.
Features:
- Maintains proper accessory drive belt tension
- Helps reduce belt slip during engine operation
- Supports consistent accessory drive performance
- Promotes smooth and stable serpentine belt tracking
- Helps reduce unwanted belt noise and vibration
- OE-style replacement supports proper fit and function
- Built for demanding 6.6L Duramax diesel service
- Supports a reliable and complete belt drive repair
Specifications:
- Brand: Alliant Power
- Manufacturer Part Number: AP63449
- Product Type: Accessory Drive Belt Tensioner
- Condition: New
- Engine: 6.6L Duramax
- Manufacturing Label: New
- Country/Region of Origin: CA
- Gross Weight: 7.354 lb
- Alliant Catalog No.: APP1613
- Cross References: 38153; 38172; 39159; 39242; 419-358; 419-629; 97288625; 97329062; 98094201
Included:
- (1) Accessory Drive Belt Tensioner
Fitment:
- 2002–2016 Chevrolet Silverado 2500 HD 6.6L Duramax
- 2002–2016 Chevrolet Silverado 3500/3500 HD 6.6L Duramax
- 2006–2016 Chevrolet Express 2500 6.6L Duramax
- 2006–2016 Chevrolet Express 3500 6.6L Duramax
- 2002–2016 GMC Sierra 2500 HD 6.6L Duramax
- 2002–2016 GMC Sierra 3500/3500 HD 6.6L Duramax
- 2006–2016 GMC Savana 2500 6.6L Duramax
- 2006–2016 GMC Savana 3500 6.6L Duramax
Notes:
- 24-Month / Unlimited-Mile Alliant Power Limited Warranty