6S5-12121-00-00 Exhaust Valve for Yamaha 252XE 1900 2024-2026

Exhaust Valve for Yamaha

This exhaust valve for Yamaha marine engines, OEM cross-reference 6S5-12121-00-00, controls exhaust gas flow through the cylinder head for proper engine breathing.

Overview

This exhaust valve for Yamaha is a direct-fit replacement engineered to restore proper exhaust flow in your marine engine. The exhaust valve, cross-referenced to OEM 6S5-12121-00-00, seats precisely in the cylinder head to manage combustion gas exit. It suits boat owners and marine mechanics servicing Yamaha 252XE 1900 series engines from 2024 to 2026.

Built For Performance

• Manufactured to OEM 6S5-12121-00-00 specifications for accurate fit
• Heat-resistant valve steel construction withstands sustained high exhaust temperatures
• Precision-ground stem and face for consistent sealing
• Direct replacement for worn or burnt exhaust valves
• Compatible with Yamaha 1900 series marine engine heads

Fits These Machines

• for Yamaha 252XE 1900, 2024-2026

On-The-Job Use

• Cylinder head rebuilds on Yamaha 252XE 1900 marine engines
• Routine top-end maintenance and valve service
• Restoring compression after valve burn or seat wear
• Marine engine repair shops and DIY boat maintenance

Specs At A Glance

Good To Know

Q: Is this an original Yamaha part? A: No, this is an aftermarket exhaust valve made to OEM 6S5-12121-00-00 specifications for Yamaha engines. It is not manufactured by Yamaha.

Q: Should I replace valves in sets? A: Replacing exhaust valves as a set is common practice during a top-end rebuild to keep wear even across cylinders. Confirm valve count and fitment for your specific engine 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.