Product Description Specifications Piston Wrist Pin, 9310 Nickel Carbon Steel Alloy, 0.866 in. Diameter, 2.250 in. Length, 0.230 in. Wall, Chamfered End, Each. CARB: This product is not CARB Legal and not for sale in California Category: Engine Components>Piston Pins Clearance Item: N MPN: 866-2250-23-93C Special Order: N