Alliant Power AP63442 Fuel Transfer Unit moves fuel through the low-pressure side of the 6.6L Duramax fuel system to support a steady supply to downstream components. Consistent fuel transfer helps maintain reliable starting, drivability, and fuel-system operation.
This replacement unit is designed to restore fuel movement when the original transfer component becomes worn or fails. Its application-specific configuration supports proper installation across compatible Chevrolet and GMC Duramax platforms.
Features:
- Restores low-pressure fuel transfer to the engine
- Supports consistent fuel supply under engine demand
- Application-specific fit for GM 6.6L Duramax diesels
- Helps maintain reliable starting and drivability
- OE-style configuration supports direct replacement
- Promotes steady fuel delivery to injection components
- Durable construction for diesel fuel system service
- Replaces a worn or failing factory transfer pump
Specifications:
- Brand: Alliant Power
- Manufacturer Part Number: AP63442
- Product Type: Fuel Transfer Unit
- Condition: New
- Engine: 6.6L Duramax
- Manufacturing Label: New
- Country/Region of Origin: US
- Gross Weight: 1.177 lb
- Alliant Catalog No.: APP1620
- Cross References: 15161174; 15821962; 23484581; 23495127; EP1001; EP1020; EP1037; EP2182
Included:
- (1) Alliant Power Fuel Transfer Unit
Fitment:
- 2001–2014 Chevrolet Silverado 2500 HD 6.6L Duramax
- 2001–2006 Chevrolet Silverado 3500 6.6L Duramax
- 2003–2009 Chevrolet C4500 Kodiak 6.6L Duramax
- 2001–2014 GMC Sierra 2500 HD 6.6L Duramax
- 2006–2014 GMC Savana 3500 6.6L Duramax
- 2009–2014 GMC Savana 4500 6.6L Duramax
- 2003–2009 GMC C5500 TopKick 6.6L Duramax
Notes:
- 24-Month / Unlimited-Mile Alliant Power Limited Warranty