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Thumbnail Filmstrip of LB7 Duramax Reman CP3 Pump Alliant Power AP55202 Images
The Alliant Power AP55202 is a remanufactured CP3 fuel injection pump for 2001–2004 GM LB7 Duramax applications. Alliant’s Diesel Fuel Injector Pump supplies the pressure and fuel flow required for proper fuel injection and engine operation.
Features & Benefits
- Remanufactured Alliant Power CP3 Fuel Injection Pump (Alliant P/N AP55202)
- Fit, form, and function tested to meet or exceed original-equipment standards (per Alliant Power)
- Direct replacement for 8972080734 / 97208073 / 97720662
- Backed by Alliant Power’s 24-month, unlimited-mileage warranty
Application
- Chevrolet Silverado 3500 / Silverado 2500 HD (2001–2004)
- GMC Sierra 3500 / Sierra 2500 HD (2001–2004)
- Chevrolet C4500 Kodiak / C5500 Kodiak (2003–2004)
- GMC C4500 Topkick / C5500 Topkick (2003–2004)
Always verify fitment against your VIN, engine, and OE part number before ordering.
Cross-Reference / Replaces
- General Motors: 8972080734, 97208073, 97720662
- Motorcraft: HPP7303
- Bosch: 0-445-020-005, 0-445-020-017, 0-986-437-303, F-00E-200-433, F-00E-200-523
- Delphi: EX631050
- Isuzu: 2-90071-110-0, 2-90000-914-0, 8-97208-073-4
- Alliant Power: AP55202
Warranty: Alliant Power’s standard warranty: 24 months with unlimited miles/hours on installed parts (Alliant Power warranty policy, rev. Aug 2025).
A refundable core charge is added at checkout and refunded when your old pump is returned per our core terms.
The Alliant Power AP55202 is a remanufactured CP3 fuel injection pump for 2001–2004 GM LB7 Duramax applications. Alliant’s Diesel Fuel Injector Pump supplies the pressure and fuel flow required for proper fuel injection and engine operation.
Features & Benefits
Remanufactured Alliant Power CP3 Fuel Injection Pump (Alliant P/N AP55202)
Fit, form, and function tested to meet or exceed original-equipment standards (per Alliant Power)
Direct replacement for 8972080734 / 97208073 / 97720662
Backed by Alliant Power’s 24-month, unlimited-mileage warranty
Application
Chevrolet Silverado 3500 / Silverado 2500 HD (2001–2004)
GMC Sierra 3500 / Sierra 2500 HD (2001–2004)
Chevrolet C4500 Kodiak / C5500 Kodiak (2003–2004)
GMC C4500 Topkick / C5500 Topkick (2003–2004)
Always verify fitment against your VIN, engine, and OE part number before ordering.
Cross-Reference / Replaces
General Motors: 8972080734, 97208073, 97720662
Motorcraft: HPP7303
Bosch: 0-445-020-005, 0-445-020-017, 0-986-437-303, F-00E-200-433, F-00E-200-523
Delphi: EX631050
Isuzu: 2-90071-110-0, 2-90000-914-0, 8-97208-073-4
Alliant P[...]
The Alliant Power AP55202 is a remanufactured CP3 fuel injection pump for 2001–2004 GM LB7 Duramax applications. Alliant’s Diesel Fuel Injector Pump supplies the pressure and fuel flow required for proper fuel injection and engine operation.
Features & Benefits
- Remanufactured Alliant Power CP3 Fuel Injection Pump (Alliant P/N AP55202)
- Fit, form, and function tested to meet or exceed original-equipment standards (per Alliant Power)
- Direct replacement for 8972080734 / 97208073 / 97720662
- Backed by Alliant Power’s 24-month, unlimited-mileage warranty
Application
- Chevrolet Silverado 3500 / Silverado 2500 HD (2001–2004)
- GMC Sierra 3500 / Sierra 2500 HD (2001–2004)
- Chevrolet C4500 Kodiak / C5500 Kodiak (2003–2004)
- GMC C4500 Topkick / C5500 Topkick (2003–2004)
Always verify fitment against your VIN, engine, and OE part number before ordering.
Cross-Reference / Replaces
- General Motors: 8972080734, 97208073, 97720662
- Motorcraft: HPP7303
- Bosch: 0-445-020-005, 0-445-020-017, 0-986-437-303, F-00E-200-433, F-00E-200-523
- Delphi: EX631050
- Isuzu: 2-90071-110-0, 2-90000-914-0, 8-97208-073-4
- Alliant Power: AP55202
Warranty: Alliant Power’s standard warranty: 24 months with unlimited miles/hours on installed parts (Alliant Power warranty policy, rev. Aug 2025).
A refundable core charge is added at checkout and refunded when your old pump is returned per our core terms.