Alliant Power AP55502 is a remanufactured common rail injector for the GM 6.6L Duramax LB7. Alliant Power lists it for 2001 to 2004 Chevrolet Silverado 2500 HD and 3500 and GMC Sierra 2500 HD and 3500 trucks, and cross-references it to GM 97729095 and Bosch 0 986 435 502. Bosch lists 0 986 435 502, and its new version 0 445 120 008, under GM 97208074, 97720604, 97720661 and 97729095.
It comes with a chamber nozzle tip gasket. The 2004.5 to 2005 LLY takes a different injector (Bosch 0 986 435 504), and so do the later Duramax engines. On a 2004 truck, the engine code in the VIN tells them apart: 1 is the LB7 and 2 is the LLY.
Confirm Fitment Before You Order
Call 530-668-0818 with your VIN or engine serial number and we will confirm it is the right part before anything ships.
Specifications
| Part number | AP55502 |
|---|---|
| Brand | Alliant Power |
| Condition | Remanufactured |
| Injection system | Common rail |
| Engine | GM 6.6L Duramax LB7 |
| Engine VIN code | 1 (LB7) |
| Core charge | Refundable in full when we receive your rebuildable core |
| Shipping weight | 1 lb |
Fits / Applications
- GM 6.6L Duramax LB7 engine
- Chevrolet Silverado 2500 HD, 2001 to 2004
- Chevrolet Silverado 3500, 2001 to 2004
- GMC Sierra 2500 HD, 2001 to 2004
- GMC Sierra 3500, 2001 to 2004
Part Numbers & Cross Reference
GM 97729095 · Bosch (remanufactured) 0 986 435 502 · OE number listed by Alliant Power (maker not named) 2-90000-913-0 · Bosch (new) 0 445 120 008 · GM 97208074 · GM 97720604 · GM 97720661
In the Box
- 1 remanufactured injector
- 1 chamber nozzle tip gasket
Frequently Asked Questions
Which trucks does AP55502 fit?
Alliant Power lists it for 2001 to 2004 Chevrolet Silverado 2500 HD and 3500 and GMC Sierra 2500 HD and 3500 trucks with the 6.6L Duramax LB7.
What GM and Bosch numbers does AP55502 cross to?
Alliant Power cross-references it to GM 97729095 and Bosch 0 986 435 502. Bosch lists that injector, and its new version 0 445 120 008, under GM 97208074, 97720604, 97720661 and 97729095.
Will AP55502 fit a 2004.5 LLY Duramax?
No. Bosch and Alliant Power list a different injector for the 2004.5 to 2005 LLY: Bosch 0 986 435 504. On a 2004 truck, VIN engine code 1 is the LB7 and 2 is the LLY.
Ships by UPS to all 50 states, including Alaska and Hawaii. Your rate shows at checkout. A refundable core charge is added at checkout.





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