8GL-12121-10-00 Exhaust Valve for Yamaha YXZ 1000 2016-2017

Exhaust Valve for Yamaha YXZ 1000

This exhaust valve, OEM cross-reference 8GL-12121-10-00, controls exhaust gas flow from the combustion chamber on Yamaha YXZ 1000 side-by-side engines.

Overview

This exhaust valve is a direct-fit replacement for the Yamaha YXZ 1000, built to seal combustion gases and release them through the exhaust port at the correct moment in the engine cycle. Made for riders and mechanics rebuilding or refreshing a top end, this exhaust valve for Yamaha YXZ 1000 restores proper compression and exhaust scavenging. The 8GL-12121-10-00 exhaust valve matches the factory dimensions so it seats correctly in the cylinder head without modification.

Built For Performance

• Precision-ground valve face for a clean seal against the valve seat
• Heat-resistant alloy construction suited to sustained exhaust temperatures
• Stem diameter held to factory tolerance for correct valve guide fit
• OEM cross-reference 8GL-12121-10-00 for direct replacement
• Designed for the YXZ 1000 three-cylinder engine platform

Fits These Machines

• for Yamaha YXZ 1000 (2016-2017)

On-The-Job Use

• Top-end rebuilds after valve seat wear or compression loss
• Cylinder head service and valve adjustment jobs
• Restoring factory valvetrain geometry on high-hour engines
• Preventive replacement during engine teardown

Specs At A Glance

Good To Know

Q: Is this valve sold as a single unit? A: Yes, this listing covers one exhaust valve with OEM cross-reference 8GL-12121-10-00. Order the quantity your rebuild requires. Q: Should valves be replaced in sets? A: Many engine builders replace all exhaust valves together when wear is found, along with seals, guides, and a valve job. Check all clearances during assembly.

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