Features 1、PART NUMBER: Propeller hub kit replace part number are 835257K12, 835257Q12 for reference. Please check the part numbers whether it suits your vehicle before purchasing. 2、HIGH COMPATIBILITY: specially designed for Mariner outboards 40 hp through 60 hp 4 stroke, for Mariner outboards 30 hp through 60 hp two‑cycle, for Mariner Command Thrust outboards 25 hp, etc. 3、COMPLETE SET INCLUDED: Kit comes with a comprehensive set of components, including a forward thrust washer, reflex drive sleeve, rear hub washer, and a propeller nut, providing an all in one solution for your needs. 4、PROTECTIVE HUB SYSTEM: The hub system in the kit is designed to cushion and protect the drive system from most shocks. It absorbs vibrations and reduces propeller shaking for better performance and longevity. 5、ENHANCED PROPELLER PERFORMANCE: The kit enhances the performance of your propeller by reducing vibrations and providing it with better stability. It results in smoother, more efficient boat movement. Specification Item Type: Outboard Motor Hub Kit Material: Rubber, metal alloy, copper Replace Part Number: 835257K12, 835257Q12 Applicable Models: Fit for Mariner outboards 40 hp through 60 hp 4-stroke(not Command Thrust) Fit for Mariner outboards 30 hp 4-stroke (1994 through 2005) Fit for Mariner outboards 30 hp through 60 hp two-cycle (1997 and newer) Fit for Mariner Command Thrust outboards 25 hp Fit for Mariner Marathon outboards and for Sea Pro 55 hp Package List 1 x Set of Outboard Bearing Kit (6PCS)