Features: 1. PART NUMBER: Replacing manufacturer part number for reference are 835257K1, 835257Q1. Please check the part numbers whether it suits your vehicle before purchasing. 2. STRONG COMPATIBILITY: Fits engines from 60-300HP, 15 spline, for MerCruiser 120-375hp Alpha and Bravo One Sterndrives, for Mariner 135-250 HP, for Verado 200-300 HP, etc. 3. IMPACT PROTECTION: The propeller hub kit acts as a buffer, protecting the drivetrain from most forms of impact. This ensures that your drivetrain remains in optimal condition for longer, reducing the need for frequent maintenance or repairs. 4. NOISE REDUCTION: The hub kit helps prevent shift noise and propeller chatter, allowing for quieter, smoother operation. This creates a more pleasant boating experience with less disturbance to the surrounding environment. 5. EASY OPERATION: Designed specifically for outboard and sterndrive engines. The kit simplifies the connection between the engine and propeller, making assembly and disassembly easier. Specification: Item Type: Propeller Hub Kit Material: Copper + Rubber Part Numbers: 835257K1, 835257Q1 Fitment: Fits 60-300HP, 15 spline Fits MerCruiser Alpha and Bravo One Sterndrives 120-375hp Fits Mariner 135-250 HP, Verado 200-300 HP Fits Mariner 75 HP 1984 and newer, 90-115 HP 1978 and newer, 125 HP 1994 and newer Fits Mariner Alpha and Bravo One Sterndrives: 75 HP 1984 and newer, 90-115 HP 1978 and newer, 125 HP 1994 and newer Does not fit Mariner models 1977 and older This hub kit fits all propellers that accept Flo-torq II Package List: 1 x Set of Propeller Hub Kit (5PCS)