Prop Nut, 1/2" - 13 thread

Prop Nut. For Johnson/Evinrude Outboard. Thread: 1/2" – 13. Wrench Size: 13/16" SAE / 21mm Metric. Replaces Johnson/Evinrude 318971, and GLM 22160. Premium Quality For Longer Life. Meets or exceeds manufacturer's recommended specifications. Backed by Sierra's limited lifetime warranty. Thread: 1/2" – 13 Wrench Size: 13/16" SAE / 21mm Metric Replaces Johnson/Evinrude 318971, and GLM 22160 Premium Quality For Longer Life Meets or exceeds manufacturer's recommended specifications Backed by Sierra's limited lifetime warranty