NAMURA Bronco® exhaust valves are engineered as direct OEM replacements for a wide range of ATV and UTV applications, ensuring precise fitment and reliable performance. Constructed from durable SUH35B heat-resistant steel, these components feature a fill Nitride finish that enhances overall durability while providing robust resistance to corrosion. This combination of material strength and surface treatment is designed to withstand the demanding thermal and mechanical stresses inherent in off-road power sports.
For high-performance and high-revving applications, NAMURA offers specialized performance valves crafted from 21-4N/SUH35HT stainless steel. These advanced components undergo a swirl polish and smooth stem treatment, and are forged with Stellite-Tipped valve stems to maximize longevity under extreme conditions. All NAMURA valves are produced within an ISO 9001 certified facility, guaranteeing strict adherence to quality standards and consistent manufacturing precision.