The return fuel pressure test port for the 2011-2016 LML Duramax is designed to aid the technician in troubleshooting return fuel pressure, often necessary when diagnosing CP4 pump failures. When installed in the return fuel system, it allows for a pressure gauge to be...

There are two styles of the OE Reverse servo piston plug in Chrysler RWD units: The extended tip version for the 47RH/RE (A618) and 48RE The flat tip version for the 40RH, 42RH/RE, 44RE (A500), 46RH/RE (A518), 36RH, 37RH (A727) and 30RH (A904). Both...

These are the Solenoid Bracket required to changed Pre 2000 VB to accept the 2000+ Governor Pressure Solenoid.

In Dodge 47RE, 47RH and 48RE units, intermediate shaft failure is common as power levels are increased and long-distance towing applications. Sonnax extreme duty intermediate shaft 22171B-HD is specially heat-treated and processed for maximum strength and resistance to fracture.This shaft features many unique refinements...

Input shaft failure is common as power levels are increased in Chrysler 68RFE units. Sonnax heavy duty input shaft 72670B-01 is precision-engineered for unrivaled performance in high-horsepower diesel applications. Machined from 300M ultra high-strength steel for exceptional toughness and manufactured with rolled turbine splines...

Designed for hard-working Chrysler A618, 47RH/RE and 48RE units, Sonnax heavy duty input shaft 22121B-01 comes with durability and performance features which are second to none. Instead of the OE two-piece shaft/hub design, the Sonnax shaft uses a much stronger, one-piece design that combines...

The Sonnax Smart-Tech® big input shaft kit 22121B-08K is the ultimate solution to prevent input shaft spline-twist and breakage in high torque Chrysler 47RH, 47RE and 48RE diesel applications. Compared to the best 300M 23-spline shafts, the Sonnax input shaft is 35% stronger at...

68RFE Dodge trucks pulling heavy loads or with boosted power are at high risk for overdrive burnup due to the stock transmission’s insufficient clutch capacity and fragile OE clutches.Even small amounts of heat and extra torque will push the thin (.034"), single-sided clutches over...