

Engine Valve Stem Seal Set for 1959-1990 General Motors Models, 1980-1982 Checker Marathon
Fel-Pro SS70393 is an engine valve stem seal set for verified GM and Checker applications, covering classic and later Oldsmobile, Buick, Cadillac, Chevy, GMC, and Pontiac platforms. Valve stem seals help control oil at the valve stems during cylinder head or valvetrain service, making this set a practical choice when the original seals are hardened, worn, or leaking. Built for the aftermarket repair environment, this application-specific set is designed to meet or exceed OE sealing requirements and is validated for fit, form, and function.
Fel-Pro SS70393 Features:
- Application-specific sealing design supports correct operation on the verified engine applications instead of relying on a universal seal approach.
- Engineered for aftermarket service where valve stem seals are replaced during cylinder head work, valve jobs, or related valvetrain repairs.
- Designed to meet or exceed OE specifications and validated for fit, form, and function, giving technicians a dependable replacement sealing solution.
- Verified coverage reaches from 1959 applications through 1990 applications across major GM passenger car and light truck lines plus Checker Marathon.
Includes:
- Valve stem seal set
Use this set when replacing hardened, cracked, or leaking valve stem seals on the listed applications. Confirm the exact engine and vehicle details before ordering because some broader catalog sources disagree on additional models not included in the verified fitment data.
Verified fitment covers Oldsmobile Dynamic 88, Super 88, Starfire, F-85, Cutlass, 442, Jetstar 88, Jetstar 1, Vista Cruiser, Delta 88, Delmont Eighty-Eight, Toronado, Omega, Custom Cruiser, and Cutlass Ciera; Buick Apollo, Skylark, Century, Electra, Electra Estate Wagon, LeSabre, Regal, and Riviera; Cadillac Seville, Eldorado, Fleetwood, DeVille, Commercial Chassis, and Brougham; Chevy C10 pickup, Suburban C10, C30 pickup, Caprice, Impala, Celebrity, Malibu, Monte Carlo, and El Camino; GMC TransMode, C1500 pickup, Suburban C1500, Suburban C2500, and Caballero; Pontiac Firebird, Bonneville, Catalina, LeMans, Grand Prix, Parisienne, 6000, Phoenix, Ventura, Safari, Laurentian; and Checker Marathon.