Fleece CP3 Conversion Hardware Kit – No Pump (FPE-LML-CP3-NP) for 2011-2016 Duramax LML
$786.45
The Fleece CP3 Conversion Hardware Kit – No Pump (FPE-LML-CP3-NP) is designed for 2011-2016 GM Duramax LML engines to replace the unreliable factory CP4 injection pump with a more durable CP3 pump (not included). This upgrade enhances fuel system reliability and performance. The kit includes all necessary hardware for easy installation and is ideal for Duramax owners seeking improved dependability without sacrificing power or efficiency.
The Fleece CP3 Conversion Hardware Kit – No Pump (FPE-LML-CP3-NP) is a high-quality solution designed specifically for 2011-2016 GM Duramax LML engines. This kit allows you to replace the factory CP4 injection pump, which is known for reliability issues, with the more robust and dependable CP3 pump (sold separately). The conversion improves fuel system longevity and performance by eliminating the failure-prone CP4. Engineered for a straightforward installation, the Fleece kit includes all necessary hardware and components—excluding the CP3 pump itself—to ensure a seamless upgrade. It’s an ideal choice for Duramax owners seeking increased reliability and peace of mind without compromising on power or efficiency.
| Weight | 4 lbs |
|---|---|
| Dimensions | 16 × 12 × 3 in |
Fitment
- 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
- High flow CP3 feed and return fittings
- Preformed fuel feed and return fuel hoses
- 50-state compliant; EO# D-834-
What LML CP3 Conversion Kit is right for you?
We’ve got a number of choices when it comes to CP3 conversion kits, let us help you in the proper selection:Â
FPE-LML-CP3-NP: Our “No Pump” kit for the LML CP3 conversion gives you the option to select your own CP3 pump for your application. Our kit provides you with all of the hardware you need to adapt a LBZ/LMM based Bosch CP3 to your 2011-2016 LML Duramax.Â
FPE-LML-CP3-WP: Our “With Pump” kit for the LML CP3 conversion gives you a brand new LBZ/LMM Bosch CP3 along with all of the hardware you need to convert your CP4 equipped Duramax to a CP3. This kit is designed for use with or without a low pressure lift pump. For optimal performance, if the truck is equipped with a lift pump, the feed pressure to the CP3 should not exceed 11 psi when utilizing this kit.
FPE-LML-CP3-10: Our Heavy Duty kit for the LML CP3 conversion features a brand new LBZ/LMM Bosch CP3 equipped with a Fleece Performance 10mm stroker cam along with all of the hardware you need to convert your CP4 equipped Duramax to a CP3. This kit is designed for use with or without a low pressure lift pump. For optimal performance, if the truck is equipped with a lift pump, the feed pressure to the CP3 should not exceed 2 psi. Engine surging may be induced by the additional fuel pressure of a lift pump operating at pressures over 2 psi. If you are intending to combine this kit with a Fleece PowerFlo lift pump, contact us for a lower rate spring for your pump to accommodate operation with this kit. For higher lift pump pressures, FCA table values will require adjust
Includes
- CP3 to rail high pressure fuel line
- High flow CP3 feed and return fuel fittings
- Preformed fuel feed and return fuel hoses
- CP3 mounting adapter
- Dosing injector distribution block, feed and return lines
- FCA extension harness
- low pressure fuel feed line
- Hardware kit
Warning
No FCA regulator table changes are required when converting from the CP4 to a stock CP3 when using this kit. Â
Related products
