The SunCoast 4-Ring Billet Accumulator Piston is an upgrade for the plastic 2-ring piston found in the transmission of your 1994-2007 Dodge 5.9L Cummins. This 4-ring piston stops cross leaks and piston breakage commonly associated with the factory unit.
For 47RH, 47RE, & 48RE transmissions only: this accumulator piston will only fit Ram 5.9L Cummins models with 47RH, 47RE, & 48RE transmissions. Please verify your truck's transmission type before ordering.