Rotor Seal, 2-Groove Back Catalog number: CTS-21163 Availability: In the manufacturer's stock Price on request - + Recommended CTS-1042 Plunger Insertion Tool Price on request 11-2525 1/4" Short Comp. Screw (Gold-Plated), 10/pk Price on request 11-4134 Rotor Seal & Pod Repair Kit, Vespel, 3-Groove for Price on request