These are direct replacements for the original clutch washers that are prone to fail on modified engines. Precision machined from tool grade steel to increase durability. Will not break up and damage engine at end of service life.
Note: RS1751-HDW-945 washer set is designed to be used with the original supercharger shaft found on 2004 & 2005 215 models. If supercharger was rebuilt using OEM rebuild kit part# 420881102, use washer kit part# RS1751-HDW-948.