Federal Mogul SS712371 Valve Stem Seal Set - Positive Stop Design

The Federal Mogul SS712371 (Fel-Pro SS 71237-1) Valve Stem Seal Set delivers professional-grade engine sealing performance for Chevrolet, GMC, and Isuzu 2.9L L4 engines. These precision-engineered valve stem seals control the lubrication of valve stems as they slide in the valve guide, preventing both inadequate lubrication that causes stem and guide wear, and excess oil that increases consumption and carbon buildup.

Key Features:

• Positive stop design valve stem seals
• Application-specific materials validated by Fel-Pro engineers through rigorous research, development and testing
• Installation tool included - a thin plastic sleeve that protects the inner lip of the seal from damage by the lock grooves during installation
• No machine work required for installation
• High-quality materials including FKM fluoroelastomer for superior heat resistance up to 450°F and excellent abrasion resistance

Positive seals are fixed to the valve guide boss and function as squeegees to wipe and meter oil on the stem as they pass through the seals. Fel-Pro valve stem seals are engineered to meet or exceed OE specifications, providing reliable sealing performance that professionals trust for demanding engine repair applications.