Login
My Account
My Cart
The site navigation utilizes arrow, enter, escape, and space bar key commands. Left and right arrows move across top level links and expand / close menus in sub levels. Up and Down arrows will open main level menus and toggle through sub tier links. Enter and space open menus and escape closes them as well. Tab will move on to the next part of the site rather than go through menu items.
Enter your truck info so we can recommend the right products for you.
Can't find it? Call us at 859-737-4966 for free advice.
Menu
Injection Pump
Injector
Programmers
Turbo Charger
Banners
Decals
Hats
Hoodies
License Plates
Shirts
Tank Tops
Show your support with a Thoroughbred Diesel t-shirt, sweatshirt, or sticker decal.
Thoroughbred Sku #: FPE-LML-CP3-WP
Year/Make/Model: {{year}} {{make.Name}} {{model.Name}} Edit
$1,999.00
2011 - 2016 Chevy Silverado 2500
2011 - 2016 Chevy Silverado 3500
2011 - 2016 GMC Sierra 2500
2011 - 2016 GMC Sierra 3500
Product Name: Fleece CP3 Conversion Kit with CP3 for 2011-2016 LML Duramax Manufacturer: Fleece Manufacturer Part #: FPE-LML-CP3-WP Thoroughbred Diesel Part #: FPE-LML-CP3-WP Fitment Notes: 2011-2016 LML Duramax
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 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.
* Protected under US Patent D1023736 and Patents Pending
CARB EO# D-834-1
SEMA CERT: SC-FLC01-0013
Fleece CP3 Conversion Hardware Kit Features:
Kit Contents:
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:
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.
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 adjustment.
No, it must be a LBZ/LMM.
No bolt and go. Do not exceed 11 psi.
It will operate at the commanded levels.
No other gaskets required
Yes
The fuel can be adjusted only through tuning.
It is not required, but a lift pump is always a good upgrade.
No
Not with this kit:
https://www.thoroughbreddiesel.com/2015-gmc-sierra-2500/fleece-cp3-conversion-kit/?HideOptionsEditButton=True
Emissions Compliant CP3 Conversion Kit DOES NOT REQUIRE TUNING.