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Estimated Ship Date from Nevada: Monday 10/19/2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
SS-555-HD
Part Type:
Product Line:
Summit Racing Part Number:
PIO-SS-555-HD
UPC:
727993066195
Valve Stem Diameter (in.):
0.344 in.
Valve Stem Diameter (mm):
8.74mm
Lock Style:
7 degree
Lock Groove Quantity:
1-groove
Lock Material:
Steel
Recessed for Lash Cap:
No
Quantity:
Sold as a set of 32.
Pioneer Valve Locks
These Pioneer OEM replacement valve locks are designed to fit your stock retainers and valves without any modifications. They are manufactured from stamped steel and are available to fit different retainers and valve stem diameters. Keep your valvetrain operating smoothly and efficiently with these Pioneer OEM replacement valve locks.
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Some parts are not legal for use in California or other states with similar laws / regulations
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