2006-2010 Chevy / GMC 6.6L Duramax LBZ / LMM Fuel Injection Pump | Alliant Power AP55204 Remanufactured

Alliant Power AP55204 is a remanufactured fuel injection pump for the 6.6L Duramax LBZ and LMM. Alliant lists it for the 2006 to 2010 GMC Sierra 2500 HD, 2007 to 2010 Chevrolet Silverado 3500 HD, 2006 to 2010 Chevrolet Express 2500 and 2009 to 2010 Express 4500.

Alliant lists Bosch 0 986 437 332 (remanufactured) and Bosch 0 445 020 105 (new) as substitutes. Bosch’s own Duramax guide lists those two numbers as the pump for the 2006 LBZ and the 2007 to 2010 LMM.

Specifications

Fits / Applications

• Chevrolet Silverado 3500 HD (2007 to 2010)
• GMC Sierra 2500 HD (2006 to 2010)
• Chevrolet Express 4500 (2009 to 2010)
• Chevrolet Express 2500 (2006 to 2010)
• Chevrolet Silverado 2500 HD Classic (2007)
• Chevrolet Silverado 3500 (2006)

Part Numbers & Cross Reference

Bosch (remanufactured) 0 986 437 332  ·  Bosch (new) 0 445 020 105

Frequently Asked Questions

Which engines does AP55204 fit?

The 6.6L Duramax LBZ and LMM. Alliant lists it for 2006 to 2010 Chevrolet and GMC trucks and vans, and Bosch lists its substitute pumps for the 2006 LBZ and the 2007 to 2010 LMM.

What Bosch numbers does AP55204 replace?

Alliant lists Bosch 0 986 437 332 (remanufactured) and 0 445 020 105 (new) as substitutes.

Does AP55204 fit the LB7 or LLY?

No. Bosch lists different pumps for those engines: 0 445 020 017 for the LB7 and 0 445 020 030 for the LLY. AP55204 is the LBZ and LMM pump.

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