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.

Specifications

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.

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