Zone Offroad 3" Lift Kit 20-25 GM 6.6L Duramax 2500HD / 3500 MT-K947585L First is the rail pressure

First is the rail pressure sensor

2001-2003 3500 (4WD)

BACKED BY A LIFETIME WARRANTY

The MAP sensor on your Cummins is responsible for telling the ECM the density of air getting to the cylinders

Zone Offroad 3" Lift Kit 20-25 GM 6.6L Duramax 2500HD / 3500 MT-K947585L First is the rail pressureBring your HD Duramax to new heights with this complete suspension system from Zone! This 3" Adventure Series Suspension System is built around a set of massive boxed steel upper control arms, along with traditional torsion key technology in order to gain 3" of lift. By using the fabricated arms, equipped with factory style ball joints and rubber bushings, the system is able to maintain a better quality ride and suspension travel over standard