PROX Titanium Exhaust Valve 28.6343-1 for KTM 250 SX-F, GasGas MC 250 and Husqvarna FC 250

The PROX Titanium Exhaust Valve, part number 28.6343-1, is manufactured to OEM specifications for dependable fit and performance in select 250cc four-stroke motocross engines. Designed as a direct-fit replacement component, this exhaust valve supports proper valve-train operation and helps restore reliable engine function during maintenance or rebuild work.

Built for riders, technicians, and engine builders who require consistent replacement parts, the PROX valve is engineered for use with the original equipment cylinder head and related valve-train components. It is sold individually, allowing you to replace only the valve required for your service application. Always compare the existing valve and verify engine configuration before installation.

Fitment includes the 2023 and 2024 GasGas MC 250, the 2023 Husqvarna FC 250, and the 2023 and 2024 KTM 250 SX-F. This component is intended for compatible applications listed above and should be installed according to the motorcycle manufacturer's service procedures. The manufacturer part number is 28.6343-1, and the vendor part number is 28.6343-1.

Features:

• OEM-specification manufacturing: Produced to match original equipment requirements for compatible applications
• Titanium construction: Designed for use as a durable, high-performance exhaust valve in select 250cc four-stroke engines
• Individual replacement: Sold each for targeted valve-train service and engine rebuilding
• Application-specific fitment: Fits 2023 and 2024 GasGas MC 250, 2023 Husqvarna FC 250, and 2023 and 2024 KTM 250 SX-F models
• Brand and part number: PROX 28.6343-1