2001-2004 6.6L LB7 Pump Regulator

Description

2001-2004 Chevrolet GMC 6.6L LB7 Duramax Diesel CP3 Injection Pump Regulator MPROP

The CP3 pump regulator controls the fuel pressure that is being sent to the injector fuel rails and the injectors themselves.  Over time these will wear out or be contaminated causing inaccurate pressure control.  It is common to have an uneven idle or a loping idle.  If the problem is bad enough the varying idle RPM can cause the vehicle to want to move while stopped.

Typical life expectancy of the CP3 pump is 150,000 miles.  If your pump is near or past this mileage our recommendation is to not replace just the regulator, but instead install a whole new pump that comes with a new regulator installed.

Cross Reference:
0 928 400 535
0928400535
1 465 ZS0 044
1465ZS0044
5G5108
904-570
97728979
PR437

Find all your GM LB7 Duramax diesel performance, repair, and upgrade needs here online or in person at Huckstorf Diesel’s sales and repair center located in Franklin / Milwaukee Wisconsin.