ATS 2nd Gear Accumulator Piston (Located Under the Valve Body) for Dodge (1996-07) 2500/3500 5.9L Cummins

This is a billet aluminum accumulator piston that is designed to use double rubber O-ring seals in place of the leaky steel delivery rings that the factory cast version uses. This is the accumulator piston that is located in the center of the transmission and under the valve body between the front and rear servos. This part can be replaced and upgraded without removing the transmission.