6S5-12121-00-00 Exhaust Valve for Yamaha 212 1800 2020-2022

Exhaust Valve for Yamaha

This exhaust valve, identified by OEM cross-reference 6S5-12121-00-00, controls exhaust flow in Yamaha 212 1800 marine engines, sealing against the cylinder head to manage combustion gases.

Overview

This exhaust valve for Yamaha is a direct replacement component for the 212 1800 engine platform. The exhaust valve for Yamaha 212 1800 applications restores proper sealing and gas flow, helping the engine run cleanly. It suits owners performing top-end service or rebuild work on their Yamaha 212 1800.

Built For Performance

• OEM cross-reference 6S5-12121-00-00 for accurate fitment matching
• Constructed to withstand high exhaust gas temperatures
• Precision-machined stem for smooth valve guide travel
• Hardened face resists wear and pitting over time
• Designed for the 1800 engine series valve train

Fits These Machines

• for Yamaha 212 1800 (2020-2022)

On-The-Job Use

• Top-end rebuilds and valve service on 1800 series engines
• Cylinder head reconditioning after overheating or compression loss
• Routine maintenance for marine engines with high operating hours

Specs At A Glance

Good To Know

Q: Should exhaust valves be replaced in sets? A: Replacing all valves in the affected cylinder head is common practice during a rebuild to keep wear even. Pair with fresh seals and a valve job for best results.

Q: Is this an original Yamaha part? A: This is an aftermarket exhaust valve built to cross-reference 6S5-12121-00-00. Confirm your engine serial number and head casting before ordering.

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