Fleece Performance Bosch CP3 (FPE-DMAX-CP3) for 2001-2016 Duramax LB7 / LLY / LBZ / LMM / LML

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The Fleece Performance Bosch CP3 (FPE-DMAX-CP3) is a durable, high-performance replacement fuel injection pump for 2001–2016 GM Duramax diesel engines (LB7, LLY, LBZ, LMM, LML). Known for its reliability and ability to support higher horsepower, it restores proper fuel pressure and flow, making it a preferred upgrade over the less reliable stock CP4 pumps. Ideal for both replacements and performance upgrades, it’s trusted by diesel enthusiasts and professionals.

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Description

The Fleece Performance Bosch CP3 (FPE-DMAX-CP3) is a high-quality replacement injection pump designed specifically for 2001–2016 GM Duramax diesel engines, including the LB7, LLY, LBZ, LMM, and LML models. Renowned for its durability and performance, this CP3 pump restores proper fuel pressure and flow, ensuring optimal engine performance and efficiency. Unlike the stock CP4 pumps found in later models, which are prone to failure, the CP3 is known for its reliability and ability to support higher horsepower applications without sacrificing longevity. Whether you’re looking to replace a worn-out factory pump or upgrade for better fuel delivery, the Fleece Performance CP3 is a trusted solution for diesel enthusiasts and professional mechanics alike.

Additional information
Weight 15.0 lbs
Dimensions 10.0 × 10.0 × 8.0 in
Fitment

Fitment

  • 2001 GM Silverado/Sierra 2500/3500 6.6L LB7 Duramax
  • 2002 GM Silverado/Sierra 2500/3500 6.6L LB7 Duramax
  • 2003 GM Silverado/Sierra 2500/3500 6.6L LB7 Duramax
  • 2004 GM Silverado/Sierra 2500/3500 6.6L LB7 Duramax
  • 2004.5 GM Silverado/Sierra 2500/3500 6.6L LLY Duramax
  • 2005 GM Silverado/Sierra 2500/3500 6.6L LLY Duramax
  • 2006 GM Silverado/Sierra 2500/3500 6.6L LLY/LBZ Duramax
  • 2007 GM Silverado/Sierra 2500/3500 6.6L LLY/LBZ Duramax (classic body style)
  • 2007.5 GM Silverado/Sierra 2500/3500 6.6L LMM Duramax (new body style)
  • 2008 GM Silverado/Sierra 2500/3500 6.6L LMM Duramax
  • 2009 GM Silverado/Sierra 2500/3500 6.6L LMM Duramax
  • 2010 GM Silverado/Sierra 2500/3500 6.6L LMM Duramax
  • 2011 GM Silverado/Sierra 2500/3500 6.6L LML Duramax
  • 2012 GM Silverado/Sierra 2500/3500 6.6L LML Duramax
  • 2013 GM Silverado/Sierra 2500/3500 6.6L LML Duramax
  • 2014 GM Silverado/Sierra 2500/3500 6.6L LML Duramax
  • 2015 GM Silverado/Sierra 2500/3500 6.6L LML Duramax
  • 2016 GM Silverado/Sierra 2500/3500 6.6L LML Duramax
Features

Features

  • Brand new Bosch CP3
  • No core charge or core to return

 

Application Notes

The fuel pressure regulator will need to be scaled appropriately when installed in a 2001-2005 (LB7 or LLY). You can get the values here.

 

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About brand
Fleece Performance Engineering is a diesel performance manufacturer focused on reliability and precision engineering. The company designs parts that solve common diesel issues while supporting added power. Fleece products support daily driving, towing, and performance diesel trucks. Fleece engineers fuel system components, turbochargers, electronics, and emissions-compliant upgrades in house. Their parts improve efficiency, drivability, and long-term engine protection. Each product is tested for proper fit and consistent performance. Diesel owners trust Fleece for dependable upgrades. Whether maintaining a work truck or building for performance, Fleece delivers proven solutions designed for real-world use.
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