The PROX Titanium Exhaust Valve, manufacturer part number 28.2414-1 and vendor part number 28.2414-1, is manufactured to OEM specifications for dependable fit and performance in select Yamaha four-stroke motorcycles. This exhaust valve is designed as a direct replacement component for maintaining proper engine operation and restoring reliable valvetrain function.
Fitment includes the 2014–2018 Yamaha YZ250F, 2018 Yamaha YZ250FX, and 2015–2018 Yamaha WR250F, subject to the specific model year and engine configuration. Verify the motorcycle application before installation to ensure compatibility. Each valve is sold individually, making it suitable for targeted replacement or use during a complete cylinder head service.
Feature: Titanium exhaust valve designed for select Yamaha motorcycle engines
Feature: Manufactured to OEM specifications for consistent fit and function
Feature: Direct replacement application for supported YZ250F, YZ250FX, and WR250F models
Feature: Sold individually for convenient service and engine rebuilding
Features:
- Titanium exhaust valve designed for select Yamaha motorcycle engines
- Manufactured to OEM specifications for consistent fit and function
- Direct replacement application for supported YZ250F, YZ250FX, and WR250F models
- Sold individually for convenient service and engine rebuilding
Fitment:
2014 Yamaha YZ250F
2015 Yamaha WR250F
2015 Yamaha YZ250F
2015 Yamaha YZ250FX
2016 Yamaha WR250F
2016 Yamaha YZ250F
2016 Yamaha YZ250FX
2017 Yamaha WR250F
2017 Yamaha YZ250F
2017 Yamaha YZ250FX
2018 Yamaha WR250F
2018 Yamaha YZ250F
2018 Yamaha YZ250FX
2019 Yamaha WR250F
2019 Yamaha YZ250F
2019 Yamaha YZ250FX
2020 Yamaha WR250F
2020 Yamaha YZ250F
2020 Yamaha YZ250FX
2021 Yamaha WR250F
2021 Yamaha YZ250F
2021 Yamaha YZ250FX
2022 Yamaha WR250F
2022 Yamaha YZ250F
2022 Yamaha YZ250FX
2023 Yamaha WR250F
2023 Yamaha YZ250F
2023 Yamaha YZ250FX
2024 Yamaha WR250F
2024 Yamaha YZ250F
2024 Yamaha YZ250FX
2025 Yamaha WR250F
2025 Yamaha YZ250F
2025 Yamaha YZ250FX
2026 Yamaha WR250F
2026 Yamaha YZ250F
2026 Yamaha YZ250FX