VALVE EXHAUST CRF250 04-07, PROX 28.1334-1 14721-KRN-670
High-performance racing exhaust valve made of stainless steel. Head diameter 26mm, stem diameter 5.00mm, length 82.10mm. ProX offers steel and titanium engine valves and titanium into steel conversion kits. ProX titanium valves are manufactured to high quality standards using a one-piece forged Ti3al alloy for extra strength. This material offers superior properties at high temperatures. An additional CrN coating provides extreme surface hardness and low friction. ProX titanium valves exceed OE specifications in dimensions and reliability. ProX steel valves are manufactured from premium grade steel to exact OEM specifications and tolerances by leading OEM factories in Japan, serving as a direct and cost-efficient OEM replacement.
- SKU
- 65-420.PX.SS
- Brand
- Pro-X Racing
- Availability
- In Stock (2)
FULL DESCRIPTION
ProX High-Performance Stainless Steel Exhaust Valve
This ProX High-Performance Racing Valve is constructed from durable stainless steel, designed to meet or exceed OE specifications. It is manufactured to high-quality standards for enhanced strength and reliability in demanding conditions. The valve features a CrN coating for extreme surface hardness and reduced friction.
Key Features:
- Material: Stainless Steel
- Head Diameter: 26mm
- Stem Diameter: 5.00mm
- Length: 82.10mm
- CrN Coating for enhanced hardness and low friction
- Direct replacement for optimal performance


