6S5-81167-10-00 Crankshaft Oil Seal for Yamaha 252 FSH Sport 1800 2021-2023

Crankshaft Oil Seal for Yamaha

This crankshaft oil seal replaces OEM part 6S5-81167-10-00 to keep oil contained and contaminants out of the crankcase on Yamaha 252 FSH Sport 1800 boats.

Overview

This crankshaft oil seal is a direct replacement for the factory seal on Yamaha 252 FSH Sport 1800 boats. It seals the crankshaft exit point to prevent oil leaks and block water, dust, and debris from entering the engine. Designed for boat owners and marine mechanics performing routine lower-end maintenance.

Built For Performance

• Seals the crankshaft to prevent oil seepage and loss
• Blocks water and grit from entering the crankcase
• Built from oil-resistant marine-grade sealing material
• Direct cross-reference to OEM part 6S5-81167-10-00
• Withstands the heat and friction of sustained engine operation

Fits These Machines

• for Yamaha 252 FSH Sport 1800, 2021-2023

On-The-Job Use

• Crankcase sealing during engine rebuilds
• Routine lower-end maintenance on Yamaha 1800 engines
• Replacing worn or leaking seals after engine hours accumulate
• Marine engine service and repair work

Specs At A Glance

Good To Know

Q: How do I know when this crankshaft oil seal needs replacing? A: Common signs include oil accumulating around the crankshaft area, visible oil sheen in the bilge, or a persistent oil loss without an obvious source. Replacing the seal during engine service is recommended if any of these symptoms appear.

Q: Does this seal cross-reference to the OEM part number? A: Yes, this seal is manufactured to cross-reference OEM part number 6S5-81167-10-00, which is the factory part for the listed Yamaha 1800 series boats. Confirm your engine serial number before ordering to be certain of fitment.

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