6S5-12121-00-00 Exhaust Valve for Yamaha 222XE 1800 2023

Exhaust Valve for Yamaha

This exhaust valve, OEM cross-reference 6S5-12121-00-00, controls exhaust flow in the cylinder head of Yamaha 222XE 1800 boats from 2023.

Overview

This exhaust valve is a direct-fit replacement for Yamaha 222XE 1800 marine engines from 2023. The exhaust valve opens and closes at the correct time to release combustion gases, helping the engine run cleanly and hold compression. It suits boat owners and marine mechanics handling top-end service or rebuild work.

Built For Performance

• OEM cross-reference 6S5-12121-00-00 for exact fitment
• Machined valve head and stem for consistent sealing
• Heat-resistant alloy suited to continuous marine exhaust temperatures
• Precise stem diameter for smooth guide travel
• Drop-in replacement for worn or burned exhaust valves

Fits These Machines

• for Yamaha 222XE 1800, 2023

On-The-Job Use

• Top-end rebuilds on Yamaha 222XE 1800 jet boats
• Replacing a burned or leaking exhaust valve
• Routine valve service at scheduled hour intervals
• Marine engine repair shops and DIY garage work

Specs At A Glance

Good To Know

Q: Is this an original Yamaha part? A: This is an aftermarket exhaust valve made to OEM cross-reference 6S5-12121-00-00. It is not an original Yamaha product.

Q: Should I replace all exhaust valves at once? A: When one exhaust valve fails, the rest of the set has seen the same hours. Replacing them together keeps compression even across cylinders.

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