Billet aluminum fuel cap socket for the Kawasaki Jet Skis. Works with the stock plastic or aftermarket billet gas caps. Includes attached chain. Replaces the plastic Kawasaki OE part# 59231-3716. Fits the 800SXR, 12F, 15F, 1200STX-R, 1100ZXi, and the 900STX. May also fit other Kawasaki models.