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The JE Pistons Tru-Arc wrist pin lock is a carbon steel, reusable Tru-Arc-style retainer sized for a 0.905 inch wrist pin with a 0.042 inch lock thickness. Tru-Arc locks install by spreading and rotating into the piston pin boss, work with stock sharp-edge wrist pins, and offer easier installation and reusability compared with spiro locks. They are recommended for lower-horsepower applications.
JE Pistons Tru-Arc Lock
