Fluidampr recommends replacing the diamond impregnated friction washer in the Fluidampr Cummins Full Power Kit and the Fluidampr High Strength Bolt & Friction Washer Kit each time the damper is removed.  This practice ensures a secure mating surface between the damper and the crankshaft.  Available in single or three pack.

p/n 960341-FW01.  Cummins Friction Washer.  1 pc.