Feature: 1. Applicable Model: Bearing carrier retainer wrench tool is replacement for Alpha Generation I II; replacement for Mariner outboards 150HP and up. 2. OE Number: The part numbers for reference are 91 61069, 18 9858, 91 61069T, please confirm whether it is consistent with the OE you need. 3. Function: Bearing carrier retainer wrench tool is specifically designed to allow for the proper removal and installation of the 4 3/8in retainer nut in drive units and outboards. 4. Sturdy Material: Adopt high standard carbon steel, black oxidized surface treatment, high strength, anti corrosion, anti rust, impact resistance, high precision, high hardness, long lifespan. 5. Practical Tool: The bearing carrier retainer wrench tool is easy to use, an essential tool that will make the repair task easier and more efficient, ultimately saving you time and effort. Specification: Item Type: Bearing Carrier Retainer Wrench ToolOE: 91 61069, 18 9858, 91 61069T Material: Carbon SteelFunction: Remove and install the bearing seat retaining nuts for the drive and outboard. Remove the 4-3/8in retaining nut. Fitment:Replacement for mercruiser, replacement for Alpha one, Pre, Generation 2; replacement for Bravo One, replacement for Trs outdrives Replacement for Mariner outboards 150HP and upReplacement for R, MR 1982 and earlierReplacement for Alpha Generation I 1983-1990Replacement for Alpha Generation II (all years)Replacement for MC1 (all years)Replacement for Bravo (all years)Replacement for Blackhawk (all years).Note: Not Replacement for Bravo 2, 3, XR, or TR.. Package List: 1 x Bearing Carrier Retainer Wrench Tool Note: Please double check the part number and fitment of your item, matching information is Replacement for reference only.