This listing provides CP piston rings paired specifically for S9818 and S9821 piston kits as a single-cylinder set. These rings are intended as the correct replacement ring set for those CP piston kits, allowing builders to match ring specifications and maintain intended sealing and performance characteristics when assembling the associated pistons into an engine.
CP Rings ONLY for S9818 and S9821 Piston Kits (Single Cylinder Set)