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2011-2016 LML CP3 Conversion Kit with CP3K

Quick Overview

2011-2015 LML CP3 Conversion Kit with CP3 Pump

Availability: In stock



Convert your LML's Fuel System from a CP4 to a CP3

The stock CP4 is only capable of supporting up to ~500rwhp and was introduced as a cost reduction to the LML platform since a smaller amount of fuel is required when running the more efficient piezoelectric injectors. Since its introduction, the CP4 has proven to be less reliable and less capable than the CP3 used in previous Duramax platforms.A CP3K is capable of supporting 600+ rwhp in conjunction with the piezoelectric injectors. The reliable and proven PowerFlo 750 is capable of supporting nearly 850+ rwhp.


Kit Contents: 

High Pressure Fuel Rail Line
Fuel Rail Plug and Nut
CP3 Block Adapter with O-ring
(3) CP3 Block Adapter Bolts (Flange Head, M8x1.25x35mm)
CP3 Pump Fittings – 3/8”
CP3 Pump Fittings – 1/2"
(2) Sealing Washers
Low Pressure Fuel Feed Line –
3/8”x8” Flexible Fuel Line with Hose Clamps (CP3 Return)
1/2”x30” Flexible Fuel Line with Hose Clamps (Filter to CP3)
3/4” P-Clamp
Fuel Return Line Block Off with O-ring




Installation Instructions

LML CP3 Conversion Fuel Pressure Regulator Table



Prop 65WARNING: Cancer & Reproductive Harm - 

Additional Information

Max RWHP 900
Ships In 1-3 Days

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