Engineered specifically for select 2001 through 2014 Chevrolet Silverado and GMC Sierra 2500HD/3500 cab and utility chassis platforms powered by the 6.6L Duramax V8 turbo diesel engine (LB7, LLY, LBZ, LMM, and LML codes), the Alliant Power Fuel Transfer Pump (Part # AP63442) supplies reliable auxiliary fuel transfer functionality.

When auxiliary tank or chassis fuel transfer systems fail, maintaining proper fuel levels across complex tank setups becomes compromised. As an authorized tier-1 OE aftermarket supplier, Alliant Power builds this replacement transfer pump to strict factory specifications, ensuring flawless electrical connection, correct flow rates, and long-term durability backed by a 2-year warranty with zero core charge.

Key Features & Benefits

• OE Tier-1 Manufacturing: Built to exact original equipment tolerances for seamless electrical plug-and-play installation and reliable fluid transfer.
• Restores Auxiliary Fuel Transfer: Maintains correct fuel transfer operation between auxiliary tanks and primary fuel systems on cab and chassis builds.
• Comprehensive 2-Year Warranty: Backed by Alliant Power's robust 24-month unlimited mileage warranty for ultimate peace of mind.
• Direct Factory Replacement: Matches OE mounting brackets and fuel line fitting configurations precisely.
• Zero Core Charge: Brand-new outright replacement unit requiring no core deposit or core return shipping.

Technical Specifications

• Manufacturer / Brand: Alliant Power
• Manufacturer Part Number / SKU: AP63442
• Alternative / OE Part Numbers: 15161174 / 15821962 / EP1001 / EP1020
• Product Type: Electric Fuel Transfer Pump (Cab & Chassis Applications)
• Truck Compatibility: 2001–2014 GM 2500HD / 3500 Cab & Chassis
• Engine Platform: 6.6L Duramax V8 Turbo Diesel (LB7, LLY, LBZ, LMM, LML)
• Core Requirement: None
• Warranty: Alliant Power 2-Year Unlimited Mileage Warranty

Vehicle Fitment & Technical Installation Notes

• 2001–2014 Chevrolet Silverado / GMC Sierra 2500HD / 3500 (Cab & Chassis / Utility Applications)
• Supported Engines: 6.6L Duramax Diesel (LB7, LLY, LBZ, LMM, LML)
• Installation Tip: Verify electrical wiring harness condition and clean mounting ground points thoroughly before installing pump AP63442 to ensure proper motor operation and prevent premature electrical failure.