Wiseco Intake Valve Honda TRX400X 2012-2014 VIS003

Stock intake valves are a common wear point in high-performance Honda ATV engines, especially when running aggressive cam profiles or elevated RPMs. The Wiseco VIS003 replaces that weak link with a precision-engineered valve featuring advanced coatings that reduce friction and resist heat—delivering measurable gains in engine efficiency and valve longevity. If you're serious about reliability on the track or trail, this upgrade pays dividends.

The CVD and CNI surface treatments are the real story here. These coatings create a harder, more durable wear surface that resists scuffing from the valve seat and guide, while simultaneously reducing friction losses that would otherwise steal power. Combined with Wiseco's precision manufacturing tolerances, you get a valve that breathes easier and lasts longer.

• Advanced CVD/CNI coatings
• Friction-reducing treatment
• Heat-resistant design
• Honda TRX400X 2012-2014
• Bolt-on replacement
• Enhanced durability
• MPN: VIS003