Description
Stock valve springs and steel valves on your 2009-2010 KX250F can’t reliably handle the demands of consistent racing or high-RPM riding. This Wiseco Steel Valve Kit replaces those components with precision-engineered intake and exhaust valves paired with calibrated springs that maintain proper seating under sustained load—keeping your top-end intact when it matters most. The kit includes moly paste for proper cam lobe lubrication during installation, making this a complete, bolt-on refresh for serious riders who demand reliability.
- Engineered steel valves
- High-strength construction
- Precision-calibrated springs
- OEM-quality components
- Intake and exhaust included
- Extended service life
- Moly paste included
- 2009-2010 KX250F fitment
- MPN: SVKB4338









