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The Supertech 21x10x54.3mm chrome-moly wrist pin is a precision piston pin sized at 21 x 10 x 54.3 mm for use in piston assemblies that require that dimension. Manufactured from chrome-moly material as stated, it provides the piston-to-rod connection where a correct-dimension wrist pin is required. The part is intended for engine rebuilds or piston servicing when this exact pin size is specified.
Supertech 21x10x54.3mm Chrome Moly Wrist Pin
