Mercury Mercruiser - Reverse Gear Bearing - Fits MR, Alpha One & Gen II - 31-815482 Mercury-300HP-Verado-6-CYL-2023 8 1/4-20 x 1/2 machine

8 1/4-20 x 1/2 machine screws

Q2: What makes it better than aftermarket options

Increase speed and fuel economy

9HP FourStroke outboards equipped with BigFoot or Command Thrust gearcases (model year 2005 and newer)

Q: Is thermostat replacement difficult on Yamaha outboards

Mercury Mercruiser - Reverse Gear Bearing - Fits MR, Alpha One & Gen II - 31-815482 Mercury-300HP-Verado-6-CYL-2023 8 1/4-20 x 1/2 machineFits: MR Alpha One & Gen II (C R) WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings. ca. gov.