The Alliant Power AP0127 is a new injection pump install kit for 2001–2004 GM LB7 Duramax applications. Alliant’s Fuel Injection Pump Installation Kit supports fuel injection pump service by providing components used during pump installation.

Features & Benefits

• New Alliant Power Injection Pump Install Kit (Alliant P/N AP0127)
• Fit, form, and function tested to meet or exceed original-equipment standards (per Alliant Power)
• Backed by Alliant Power’s 24-month, unlimited-mileage warranty

Application

• Chevrolet Silverado 3500 / Silverado 2500 HD (2001–2004)
• GMC Sierra 2500 HD (2001–2004)
• GMC Sierra 3500 (2001–2003)

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

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