
This JE Pistons Spiro Lock wrist pin retainer is a carbon steel spiro-type lock sized at 0.927-inch diameter with a 0.042-inch lock thickness and is intended to retain piston wrist pins in compatible pistons. Spiro locks install by spreading and rotating into the pin boss; they are commonly supplied with JE shelf pistons. The product is positioned as a durable carbon steel retention option for applicable piston assemblies.
JE Pistons Spiro Lock