Fleece Performance
Fleece Performance 11-16 GM 2500/3500 Duramax LML CP3 Conversion Hardware Kit w/o Pump
SKU: F007 FPE-LML-CP3-NP
Description
Part #: FPE-LML-CP3-NP
Convert your LML's fuel system from a CP4 to a CP3. Improve your LML Duramax's reliability and fueling capability with a CP3 conversion. Since its introduction, the CP4 has proven to be less reliable and less capable than the CP3 used in previous Duramax platforms. Failures of the CP4 are extremely costly and require replacement of the entire fuel system. Avoid a costly failure down the road and convert your CP4 to a CP3 on the 2011-2016 LML Duramax platform. Our kits provide you with OEM quality components including a brand new Bosch CP3, Fleece exclusive molded hoses for the fuel feed and return, high flow CP3 fuel fittings, and our valley feed line to support aftermarket lift pump and filter applications. This kit does not include a CP3 injection pump. Features: High flow CP3 feed and return fittings Preformed feed and return fuel lines 50-state compliant EO# D-834-1 Kit Contents: CP3 to rail high pressure fuel line High flow CP3 feed and return fuel fittings Preformed feed and return fuel lines CP3 mounting adapter Dosing injector feed line FCA extension harness Fuel temperature sensor mounting bracket Low pressure fuel feed lines Hardware kit Application Notes: No FCA regulator table changes are required when converting from the CP4 to a stock CP3 when using this kit. Patent Pending
Fitment
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Specifications
| Brand | Fleece Performance |
| Part Number | F007 FPE-LML-CP3-NP |
Videos
Fleece Performance CP3 Conversion Kit for LML Duramax Complete Installation Including CP3 Pump
Fleece Performance JUST Made Some Major Changes To The LML CP3 Conversion Kits #duramax #chevytruck
Our Biggest Install Yet! DITCH Your Unreliable CP4 Pump For Something Better (Fleece CP3 Conversion)
Permanently Fix The CP4 On Your 2011-2016 GM/Chevy LML Duramax With The Fleece CP3 Conversion.
LML DURAMAX CP3 AND TURBO SWAP!
CP3 Conversion on LML Begins! EXTRA POWER!!!
LML Duramax CP3 Installation Details
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Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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