Fleece CP3 Conversion Kit w/Heavy Duty CP3 for 2011-2016 Chevy/GMC LML Duramax

Converting your LML off the CP4 and want more pump than stock while you're at it? This kit comes with a heavy duty 10mm cam CP3.

Since its introduction, the CP4 has proven to be less reliable and less capable than the CP3 used on earlier Duramax platforms. When a CP4 fails, it's extremely costly and requires replacement of the entire fuel system. Fleece's kit gives you OEM fit-and-finish with a brand new Bosch CP3 with a heavy duty 10mm cam, Fleece exclusive molded hoses for the fuel feed and return, high flow CP3 fuel fittings, and the valley feed line to support aftermarket lift pump applications.

Features

• Heavy duty CP3 with 10mm displacement cam
• High flow CP3 feed and return fittings
• Preformed feed and return fuel lines

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 fuel lines and mounting bracket
• FCA extension harness
• Low pressure fuel feed lines
• Hardware kit

Note: This 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. For higher lift pump pressures, FCA table values will require adjustment.

Emissions: Covered under SC-E Emissions certificate #: SC-FLC01-0013. Fleece also offers a guide to which LML CP3 conversion kit is right for you.

Specs

• Pump: Heavy duty Bosch CP3, 10mm cam (included)
• Engine: 6.6L LML Duramax
• Part number: FPE-LML-CP3-10

Tuning with PPEI

PPEI recommends Fleece CP3 conversions, and we run them on our own trucks. If your LML runs a lift pump above 2 psi, the FCA tables need adjusting, and that's exactly what PPEI LML engine tuning handles. Tuned to match, the 10mm pump's extra fuel turns into stronger power, sharper throttle response and efficient fueling on a pump built to last.

Fitment

• Chevrolet Silverado 2500 HD: 2015-2016 High Country; 2011-2016 LT, LTZ, WT
• Chevrolet Silverado 3500 HD: 2015-2016 High Country; 2011-2016 LT, LTZ, WT
• GMC Sierra 2500 HD: 2015-2016 Base; 2011-2016 Denali, SLE, SLT; 2011-2014 WT
• GMC Sierra 3500 HD: 2015-2016 Base; 2011-2016 Denali, SLE, SLT; 2011-2014 WT