6S5-81167-10-00 Crankshaft Oil Seal for Yamaha 212 S 1800 2020-2022

Crankshaft Oil Seal for Yamaha

This crankshaft oil seal (OEM cross-reference 6S5-81167-10-00) keeps oil contained around the crankshaft on Yamaha 212 S 1800 boats from 2020 to 2022.

Overview

This crankshaft oil seal is a direct-fit replacement for the Yamaha 212 S 1800, cross-referenced to OEM part number 6S5-81167-10-00. The seal prevents oil from escaping past the crankshaft while keeping water and debris out of the crankcase. It suits boat owners and marine mechanics handling routine engine maintenance on their Yamaha 212 S 1800.

Built For Performance

• Constructed to OEM cross-reference 6S5-81167-10-00 for proper fit on Yamaha 1800 series engines
• Seals the crankshaft bore to stop oil weeping and protect internal engine components
• Marine-grade rubber compound resists oil, fuel, and water exposure
• Precision-molded lip maintains a tight seal under high crankshaft rotation speeds
• Designed for the 2020 to 2022 Yamaha 212 S 1800 model years

Fits These Machines

• for Yamaha 212 S 1800, 2020
• for Yamaha 212 S 1800, 2021
• for Yamaha 212 S 1800, 2022

On-The-Job Use

• Crankshaft seal replacement during routine engine servicing
• Repairing oil leaks at the crankshaft on 1800 series Yamaha jet boat engines
• Preventive maintenance before the boating season begins
• Rebuilds and top-end engine refreshes

Specs At A Glance

Good To Know

Q: Does this crankshaft oil seal come with installation hardware? A: This listing is for the seal itself, so reuse or source any additional retaining hardware separately. Confirm the part number on your existing seal matches 6S5-81167-10-00 before ordering.

Q: Can this seal be installed without opening the engine case? A: Installation typically requires access to the crankshaft area, which often means removing the front cover or splitting the case on Yamaha 1800 engines. Follow your service manual procedure for correct fitment.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.