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JE Pistons Tru-Arc lock wrist pin retainer for 0.946–1.005-inch diameter pins, carbon steel, re-usable design. Tru-Arc locks install by spreading and rotating into the pin boss and are compatible with stock sharp-edge wrist pins. JE describes them as easier to install and reusable compared with spiro locks, and recommends tru-arc locks for lower-horsepower applications where those installation and reusability characteristics are desirable.
JE Pistons Tru-Arc Lock Wrist Pin .946-1.005in Diameter
