Description
Exhaust valve performance directly impacts cylinder head efficiency and engine longevity. The PROX 28.6520-1 delivers OEM-specification precision without compromise, ensuring reliable valve sealing across high-cycle operating conditions. For racers and rebuild specialists, this valve eliminates the guesswork of sourcing quality replacement components.
- Manufacturer Part Number: 28.6520-1
- OEM specification compliance
- CNC-manufactured precision
- Standard sizing available
- Exhaust valve application
- High-cycle durability rated
- Direct bolt-in fitment









