Pioneer Valve Stem Seal Umbrella 11/32in Rubber Set of 100

Pioneer OS-1066-100 valve stem seal. Features positive stop design, 11/32in valve stem, 0.620in OD, 0.500in guide OD, PTFE construction, prevents oil leaks, sold as a set of 100.

Allstar Performance umbrella valve seals, 11/32in, 100pk, for race car engine valvetrain. Prevents oil leakage in racing setups. Bolt-on installation for track use.

Dart 26000021 valve stem seal for 11/32in valve stems. Features a positive seal design, 0.530in guide OD, made from PTFE, designed for racing builds to prevent oil leakage. Enhances durability in...

Pioneer PF-555-HD-200 valve lock. Features 7-degree angle, 11/32in valve stem, standard height, steel construction, blue paint finish, ensures secure valve retention, sold as a set of 100.

Brodix valve stem seal for race car engines. Features an 11/32in valve stem and 0.531in guide diameter, made from Viton for superior heat resistance and sealing. Positive stop design ensures minimal...