{"title":"LML DURAMAX FUEL SYSTEM","description":null,"products":[{"product_id":"fleece-lml-cp3-conversion-kit-with-10mm-cp3-for-2011-2016-duramax","title":"Fleece LML CP3 Conversion Kit with HD CP3 for 2011-2016 Duramax","description":"\u003cdiv class=\"product attribute description\"\u003e\n\u003cdiv class=\"value\"\u003e\n\u003cp\u003e\u003cstrong\u003eConvert your LML's fuel system from a CP4 to a CP3\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eImprove 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. Our kit provides you with OEM fit-and-finish features like a brand new Bosch CP3 with heavy duty 10mm cam, 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 applications.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis kit DOES NOT utilize a PowerFlo 750 CP3 and utilizes the factory fueling restriction at 3,000 RPM. For applications where fueling restrictions over 3,000 RPM must be eliminated, our PowerFlo 750 CP3 should be utilized in conjunction with our \"No Pump\" conversion kit, Part Number FPE-LML-CP3-NP. \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHeavy Duty CP3 with 10mm displacement cam\u003c\/li\u003e\n\u003cli\u003eHigh flow CP3 feed and return fittings\u003c\/li\u003e\n\u003cli\u003ePreformed feed and return fuel hoses\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKit Contents:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCP3 to rail high pressure fuel line\u003c\/li\u003e\n\u003cli\u003eHigh flow CP3 feed and return fuel fittings\u003c\/li\u003e\n\u003cli\u003ePreformed fuel feed and return fuel hoses\u003c\/li\u003e\n\u003cli\u003eCP3 mounting adapter\u003c\/li\u003e\n\u003cli\u003eDosing injector distribution block, feed and return lines\u003c\/li\u003e\n\u003cli\u003eFCA extension harness\u003c\/li\u003e\n\u003cli\u003elow pressure fuel feed line\u003c\/li\u003e\n\u003cli\u003eHardware kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eApplication Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThis kit has been tested for use in stock application trucks that did not utilize a fuel 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 adjustment.\u003c\/li\u003e\n\u003cli\u003eCovered under SC-E Emissions certificate #: SC-FLC01-0013\u003c\/li\u003e\n\u003cli\u003eThis kit\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003edoes not\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003euse a PowerFlo 750.  This pump is available separately\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e\u003ca href=\"https:\/\/www.fleeceperformance.com\/fuel-system\/injection-pumps\/powerflo\/duramax-powerflo-750-cp3.html\"\u003ehere\u003c\/a\u003e\u003c\/span\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eWhat LML CP3 Conversion Kit is right for you?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe've got a number of choices when it comes to CP3 conversion kits, let us help you in the proper selection: \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFPE-LML-CP3-NP:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eOur \"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. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFPE-LML-CP3-WP:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eOur \"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 5-6 psi when utilizing this kit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFPE-LML-CP3-10:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eOur 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 adjustment.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e* Protected under US Patent D1023736 and Patents Pending\u003c\/p\u003e\n\u003ch3\u003eVideos\u003c\/h3\u003e\n\u003cp class=\"video-container\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/zooYkA_ZjOg?si=dfbuUZd5lnN8VysH\" width=\"425\" height=\"350\"\u003e\u003c\/iframe\u003e \u003cspan\u003e \u003c\/span\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/giWAg42xs0Q?si=N8oT-slmZm_J0HQ2\" width=\"425\" height=\"350\"\u003e\u003c\/iframe\u003e       \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"warranty\"\u003e\n\u003ch3\u003eWarranty\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.fleeceperformance.com\/media\/wysiwyg\/FleecePerformanceEngineering_Warranty.pdf\" target=\"_blank\"\u003e1 Year Limited Parts Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"FLEECE","offers":[{"title":"Default Title","offer_id":52478341513496,"sku":"FPE-LML-CP3-10","price":2749.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0996\/7511\/1704\/files\/fpe-lml-cp3-wp_2024kit.png?v=1785884115"},{"product_id":"lml-cp3-conversion-kit-with-cp3-for-2011-2016-duramax","title":"Fleece LML CP3 Conversion Kit with CP3 for 2011-2016 Duramax","description":"\u003cdiv class=\"product attribute description\"\u003e\n\u003cdiv class=\"value\"\u003e\n\u003cp\u003e\u003cstrong\u003eConvert your LML's fuel system from a CP4 to a CP3\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eImprove 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 with our complete, no tuning required kit for the 2011-2016 LML Duramax platform. Our kit provides you with OEM fit-and-finish features like 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 applications.  \u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNew Bosch CP3\u003c\/li\u003e\n\u003cli\u003eHigh flow CP3 feed and return fittings\u003c\/li\u003e\n\u003cli\u003ePreformed fuel feed and return fuel hoses\u003c\/li\u003e\n\u003cli\u003e50-state compliant; EO# D-834-1\u003c\/li\u003e\n\u003cli\u003eNo tuning required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKit Contents:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCP3 to rail high pressure fuel line\u003c\/li\u003e\n\u003cli\u003eHigh flow CP3 feed and return fuel fittings\u003c\/li\u003e\n\u003cli\u003ePreformed fuel feed and return fuel hoses\u003c\/li\u003e\n\u003cli\u003eCP3 mounting adapter\u003c\/li\u003e\n\u003cli\u003eDosing injector distribution block, feed and return lines\u003c\/li\u003e\n\u003cli\u003eFCA extension harness\u003c\/li\u003e\n\u003cli\u003elow pressure fuel feed line\u003c\/li\u003e\n\u003cli\u003eHardware kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eWhat LML CP3 Conversion Kit is right for you?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWe've got a number of choices when it comes to CP3 conversion kits, let us help you in the proper selection: \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eFPE-LML-CP3-NP:\u003c\/strong\u003e 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. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eFPE-LML-CP3-WP:\u003c\/strong\u003e 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 5-6 psi when utilizing this kit.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eFPE-LML-CP3-10:\u003c\/strong\u003e 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 adjustment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e* Protected under US Patent D1023736 and Patents Pending\u003c\/p\u003e\n\u003ch3\u003eVideos\u003c\/h3\u003e\n\u003cp class=\"video-container\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/zooYkA_ZjOg?si=dfbuUZd5lnN8VysH\" width=\"425\" height=\"350\"\u003e\u003c\/iframe\u003e \u003cspan\u003e \u003c\/span\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/giWAg42xs0Q?si=N8oT-slmZm_J0HQ2\" width=\"425\" height=\"350\"\u003e\u003c\/iframe\u003e       \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"warranty\"\u003e\n\u003ch3\u003eWarranty\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.fleeceperformance.com\/media\/wysiwyg\/FleecePerformanceEngineering_Warranty.pdf\" target=\"_blank\"\u003e1 Year Limited Parts Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"FLEECE","offers":[{"title":"Default Title","offer_id":52478344462616,"sku":"FPE-LML-CP3-WP","price":2095.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0996\/7511\/1704\/files\/fpe-lml-cp3-wp_2024kit_12.png?v=1785884509"},{"product_id":"fleece-lml-cp3-conversion-hardware-kit-no-pump-for-2011-2016-duramax","title":"Fleece LML CP3 Conversion Hardware Kit (No Pump) for 2011-2016 Duramax","description":"\u003cdiv class=\"product attribute description\"\u003e\n\u003cdiv class=\"value\"\u003e\n\u003cp\u003e\u003cstrong\u003eConvert your LML's fuel system from a CP4 to a CP3\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eImprove 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 LML CP3 converstion kit provides you with OEM fit-and-finish features like our Fleece Performance exclusive molded hoses for the fuel feed and return, high flow CP3 fuel fittings, and our valley feed line to support aftermarket lift pump applications.  This kit does not include a CP3 injection pump.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHigh flow CP3 feed and return fittings\u003c\/li\u003e\n\u003cli\u003ePreformed fuel feed and return fuel hoses\u003c\/li\u003e\n\u003cli\u003e50-state compliant; EO# D-834-1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKit Contents:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCP3 to rail high pressure fuel line\u003c\/li\u003e\n\u003cli\u003eHigh flow CP3 feed and return fuel fittings\u003c\/li\u003e\n\u003cli\u003ePreformed fuel feed and return fuel hoses\u003c\/li\u003e\n\u003cli\u003eCP3 mounting adapter\u003c\/li\u003e\n\u003cli\u003eDosing injector distribution block, feed and return lines\u003c\/li\u003e\n\u003cli\u003eFCA extension harness\u003c\/li\u003e\n\u003cli\u003elow pressure fuel feed line\u003c\/li\u003e\n\u003cli\u003eHardware kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eWhat LML CP3 Conversion Kit is right for you?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWe've got a number of choices when it comes to CP3 conversion kits, let us help you in the proper selection: \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eFPE-LML-CP3-NP:\u003c\/strong\u003e 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. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eFPE-LML-CP3-WP:\u003c\/strong\u003e 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 5-6 psi when utilizing this kit.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eFPE-LML-CP3-10:\u003c\/strong\u003e 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 adjustment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e* Protected under US Patent D1023736 and Patents Pending\u003c\/p\u003e\n\u003ch3\u003eApplication Notes\u003c\/h3\u003e\n\u003cp\u003eNo FCA regulator table changes are required when converting from the CP4 to a stock CP3 when using this kit.  \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eVideos\u003c\/h3\u003e\n\u003cp class=\"video-container\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/zooYkA_ZjOg?si=dfbuUZd5lnN8VysH\" width=\"425\" height=\"350\"\u003e\u003c\/iframe\u003e \u003cspan\u003e \u003c\/span\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/giWAg42xs0Q?si=N8oT-slmZm_J0HQ2\" width=\"425\" height=\"350\"\u003e\u003c\/iframe\u003e       \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"warranty\"\u003e\n\u003ch3\u003eWarranty\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.fleeceperformance.com\/media\/wysiwyg\/FleecePerformanceEngineering_Warranty.pdf\" target=\"_blank\"\u003e1 Year Limited Parts Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"FLEECE","offers":[{"title":"Default Title","offer_id":52478393549080,"sku":"FPE-LML-CP3-NP","price":749.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0996\/7511\/1704\/files\/fpe-lml-cp3-np_kit_1_d86909c7-fc12-47a9-9f5f-77b4a651e60a.png?v=1785886198"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0996\/7511\/1704\/collections\/ChatGPT_Image_Jul_31_2026_01_01_42_PM_f85c5999-11fa-448f-a5f1-95aff79feeb3.png?v=1785867471","url":"https:\/\/dirtydiamondperformance.com\/collections\/lml-duramax-fuel-system.oembed","provider":"Dirty Diamond Performance","version":"1.0","type":"link"}