Allstar Performance Positive Stop Valve Stem Seal - 3/8 in Valve Stem - 0.620 in OD - 0.531 in Guide OD - PTFE - Set of 100 AMH-2.5 1-1/2 in Bore

1-1/2 in Bore

51 applies to some MERCEDES Gasoline engines

not your visibility

1968-1974 GMC K15/K1500 Suburban

outside diameter

Allstar Performance Positive Stop Valve Stem Seal - 3/8 in Valve Stem - 0.620 in OD - 0.531 in Guide OD - PTFE - Set of 100 AMH-2.5 1-1/2 in BoreSeals have spring loaded wipers for maximum oil control. Machining is required for most installations. Set of 100. Specialty items for the Shop, Trailer and Track. The Allstar Performance brand offers thousands of hard to find, specialty items that cover many segments in the performance aftermarket. For over 30 years, customers worldwide have come to rely on the quality, affordable and practical items available from Allstar Performance. Product