The Alliant Power AP63449 is a new power belt tensioner for 2002–2016 GM Duramax applications. Alliant’s Accessory Drive Belt Tensioner maintains proper tension on the accessory drive belt to support belt-driven component operation.

Features & Benefits

• New Alliant Power Power Belt Tensioner (Alliant P/N AP63449)
• Fit, form, and function tested to meet or exceed original-equipment standards (per Alliant Power)
• Direct replacement for 89003343 / 97288625 / 97329062
• Backed by Alliant Power’s 24-month, unlimited-mileage warranty

Application

• Chevrolet Silverado 2500 HD (2002–2016)
• Chevrolet Silverado 3500 (2002–2006)
• GMC Sierra 2500 HD (2002–2016)
• GMC Sierra 3500 (2002–2006)
• Chevrolet Silverado 3500 Classic / Silverado 2500 HD Classic (2007)
• Chevrolet Silverado 3500 HD (2007–2016)
• GMC Sierra 3500 Classic / Sierra 2500 HD Classic (2007)
• GMC Sierra 3500 HD (2007–2016)
• Alliant Power lists additional vehicle applications for this part number

Always verify fitment against your VIN, engine, and OE part number before ordering.

Cross-Reference / Replaces

• General Motors: 89003343, 97288625, 97329062, 98094201
• ACDelco: 38153, 38172
• Cummins: 49488
• Alliant Power: AP63449

Warranty: Alliant Power’s standard warranty: 24 months with unlimited miles/hours on installed parts (Alliant Power warranty policy, rev. Aug 2025).