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 CP3 is capable of supporting 600+ rwhp in conjunction with the piezoelectric injectors. 

 

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

 

NO CORE CHARGE ON CP3 PUMP!