COMP's Positive Stop PTFE valve seals offer more clearance for dual springs with better sealing than o-ring or umbrella seals. This 503 seal has a .630" outer diameter and fits applications with 11/32" valves and .530" OD valve guides.
PTFE; Seal; Valve Guide; Valve Guide Seal; Valve Stem Seal; Valve Seals; 5/16" Valve Seals; 11/32" Valve Seals; .530" Valve Seal; Umbrella; O-Ring Seals; Viton Seals; 8 mm Seals
Available in a set of 12 under 503-12, available in a set of 16 under 503-16
1 PTFE Valve Seal for .530" Guide Size, 11/32" Valve Stem
Engines w/ 0.530" OD Valve Guides and 11/32" Valve Stems
1 PTFE Seal .530" Guide, 11/32" Valve
COMP Cams Valve Seal 11/32in PTFE
Engine Valve Stem Oil Seal
Valve Stem Oil Seal
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