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Thumbnail Filmstrip of 2001-2004 6.6L LB7 Duramax Reman Fuel Injector Set Alliant AP55127 Images
The Alliant Power AP55127 is a remanufactured fuel injector set for 2001–2004 GM LB7 Duramax applications. Alliant’s Fuel Injector delivers the precise fuel quantity and spray pattern required for efficient combustion and proper engine operation.
Features & Benefits
- Remanufactured Alliant Power Fuel Injector Set (Alliant P/N AP55127)
- Fit, form, and function tested to meet or exceed original-equipment standards (per Alliant Power)
- Direct replacement for 97208074 / 97720604 / 97720661
- 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)
Always verify fitment against your VIN, engine, and OE part number before ordering.
Cross-Reference / Replaces
- General Motors: 97208074, 97720604, 97720661, 97729095
- Cummins: 4032075RX
- Bosch: 04451200008, 0445120008, 0986435502
- Isuzu: 2-90000-913-0, 2-90071-300-1, 9772060661, 8-97208-074-5
- Alliant Power: AP55127
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 injectors are returned per our core terms.
The Alliant Power AP55127 is a remanufactured fuel injector set for 2001–2004 GM LB7 Duramax applications. Alliant’s Fuel Injector delivers the precise fuel quantity and spray pattern required for efficient combustion and proper engine operation.
Features & Benefits
Remanufactured Alliant Power Fuel Injector Set (Alliant P/N AP55127)
Fit, form, and function tested to meet or exceed original-equipment standards (per Alliant Power)
Direct replacement for 97208074 / 97720604 / 97720661
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)
Always verify fitment against your VIN, engine, and OE part number before ordering.
Cross-Reference / Replaces
General Motors: 97208074, 97720604, 97720661, 97729095
Cummins: 4032075RX
Bosch: 04451200008, 0445120008, 0986435502
Isuzu: 2-90000-913-0, 2-90071-300-1, 9772060661, 8-97208-074-5
Alliant Power: AP55127
Warranty: Alliant Power’s standard warranty: 24 months with unlimited miles/hours on installed parts (Alliant Power warranty [...]
The Alliant Power AP55127 is a remanufactured fuel injector set for 2001–2004 GM LB7 Duramax applications. Alliant’s Fuel Injector delivers the precise fuel quantity and spray pattern required for efficient combustion and proper engine operation.
Features & Benefits
- Remanufactured Alliant Power Fuel Injector Set (Alliant P/N AP55127)
- Fit, form, and function tested to meet or exceed original-equipment standards (per Alliant Power)
- Direct replacement for 97208074 / 97720604 / 97720661
- 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)
Always verify fitment against your VIN, engine, and OE part number before ordering.
Cross-Reference / Replaces
- General Motors: 97208074, 97720604, 97720661, 97729095
- Cummins: 4032075RX
- Bosch: 04451200008, 0445120008, 0986435502
- Isuzu: 2-90000-913-0, 2-90071-300-1, 9772060661, 8-97208-074-5
- Alliant Power: AP55127
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 injectors are returned per our core terms.