Feature 1Applicable Model: The propeller nut kit is for outboard engine 30HP to 60HP. Please confirm whether it is consistent with the product you want before buying to avoid unnecessary return. 2OE Number: The part numbers for reference are 66TW459900, 66TW45990000, 66TW4599, 66T4599700, 9038922M01, 6634598702, 9017116011, 9149030025. 3Sturdy Metal Construction: The marine propeller nut kit is made from rust proof metal that can withstand marine environments, resistant to oxidation and wear, ensuring long lasting use. 4Reliable Performance: With this hardware nut kit, you can ensure optimal propeller use, maximizing your boat's speed and fuel efficiency, enhancing overall performance. 5Easy Installation: This outboard propeller nut installation kit is designed for simple installation. You can set up and secure your propeller in no time. Item Type: Prop Nut Kit OE Number: 66T-W4599-00, 66T-W4599-00-00, 66T-W4599, 66T-45997-00, 90389-22M01, 663-45987-02, 90171-16011, 91490-30025 Fitment: Fit for Outboard Engine 30HP-60HP Package List 1 x Propeller Nut Kit (4pcs) Note 1. Please double check the part number and fitment of your item, matching information is for reference only. 2. Installation by a professional mechanic is strongly recommended.