K20A1 Wrist Pins

K20A1 Wrist Pins

These are optional heavy duty wrist pins listed by diameter, length and wall thickness.  Chamfered pins fit pistons with wire locks; straight pins use spiral locks.  Increased wall thickness helps prevent pin flex, piston deck cracking, pin hole elongation in the rod and piston and simple breakage.  Pro pins feature upgraded steel alloy fo
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