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Brian Crower 5.5mm valve stem keepers fit Honda and Acura applications that use BC2010 and BC2011 retainers, serving as replacement locks for valve‑train rebuilds or maintenance. Supplied to match those retainer part numbers, they perform the core retention function in the valve assembly and are intended for use where the listed retainers are specified during reassembly or engine work.
Brian Crower Honda/Acura 5.5mm Stem Keepers/Locks (fits BC2010 & BC2011 retainers)
