Hillman 880779 M10 Class 8 Metric Split Lock Washers, Zinc-Plated 2-Pack Zodiac R0635400 Top Housing Cover (Blue) for Polaris 360 & 360 Black Max Cleaner Perfect Circle 215-4243 (1) Engine

Perfect Circle 215-4243 (1) Engine Push Rod 2154243 GMC Buick 1987-1993

This is not a complete kit only timing belt

S-shape center hole ensures proper installation

You are replacing an older board that went bad (replaces RS4

Hillman 880779 M10 Class 8 Metric Split Lock Washers, Zinc-Plated 2-Pack Zodiac R0635400 Top Housing Cover (Blue) for Polaris 360 & 360 Black Max Cleaner Perfect Circle 215-4243 (1) EngineFEATURES: Engineered to provide more uniform load distribution, the Hillman Class 8 Metric Split Lock Washers are great for any indoor outdoor project. Ideal for situations where potential loosening from corrosion or vibration is a concern, split lock washers are used to prevent nuts and bolts from coming loose. Lock washers contain split ends that help "lock" into the mating material, thus providing a locking feature when tightened beneath a nut