8GL-12121-10-00 Exhaust Valve for Yamaha EX Deluxe 1050 2017-2024

Exhaust Valve for Yamaha

This exhaust valve, part number 8GL-12121-10-00, controls exhaust flow out of the cylinder head on Yamaha EX Deluxe 1050 personal watercraft.

Overview

This exhaust valve for Yamaha is a direct-fit replacement for the EX Deluxe 1050 platform. The valve regulates exhaust gases exiting the combustion chamber, helping the engine maintain proper compression and exhaust flow. It suits riders performing top-end service or rebuilding the cylinder head on their Yamaha EX Deluxe 1050.

Built For Performance

• Manufactured to match OEM dimensions for the 8GL-12121-10-00 exhaust valve
• Heat-resistant alloy construction suited to marine engine exhaust temperatures
• Precision-ground valve face for a clean seal against the valve seat
• Stem diameter tolerances maintained for correct fitment in the valve guide
• Designed for the 1050 engine family used in Yamaha EX watercraft

Fits These Machines

• for Yamaha EX Deluxe 1050, 2017-2024

On-The-Job Use

• Cylinder head rebuilds on Yamaha EX Deluxe 1050 watercraft
• Top-end engine service after valve wear or compression loss
• Routine maintenance for high-hour personal watercraft engines

Specs At A Glance

Good To Know

Q: Is this valve sold as a single unit? A: Yes, this listing covers one exhaust valve. Check your engine's valve count and order the quantity your rebuild requires.

Q: Should valves be replaced in sets? A: Many engine builders replace all valves together during a top-end rebuild to keep wear even across the cylinder head.

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