Crankshaft Oil Seal Kit for Yamaha EX-R 1050 2019-2021

Crankshaft Oil Seal Kit for Yamaha

This crankshaft oil seal kit for Yamaha is a direct-fit sealing set that keeps oil contained at the crankshaft on EX-R 1050 watercraft engines, replacing worn seals before leaks develop.

Overview

This crankshaft oil seal kit for Yamaha is built to restore a proper seal at the crankshaft on EX-R 1050 models from 2019 through 2021. The kit supplies fresh sealing components to stop oil weep and protect the crankcase from contamination. It suits riders and mechanics performing routine engine maintenance or a full lower-end rebuild.

Built For Performance

• Seals the crankshaft against oil loss under normal engine operating pressure
• Constructed from oil-resistant rubber compounds rated for marine engine heat cycles
• Direct-fit dimensions matched to the EX-R 1050 crankshaft journal
• Holds crankcase pressure to keep lubrication where it belongs
• Works with standard seal installation tools for straightforward replacement

Fits These Machines

• for Yamaha EX-R 1050 (2019-2021)

On-The-Job Use

• Routine crankcase reseal during top or bottom end service
• Repairing oil weep or seal failure on EX-R 1050 watercraft
• Engine rebuilds where old crankshaft seals are replaced as a set

Specs At A Glance

Good To Know

Q: Do I need to split the cases to install this kit? A: Crankshaft oil seals sit at the ends of the crank, so a full case split is not always required, but access varies by model year and disassembly level.

Q: Should I replace both seals at once? A: Replacing seals as a set during the same service is common practice since both sides see the same wear and heat exposure.

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