1.Perfect OE-Spec Fit 

• OEM Part Number:  12915-54G50
• Precision-ground and engineered in strict accordance with OE tolerances, valve stem diameter, overall length, and valve face angle specifications. The keeper groove and chamfer dimensions are precisely machined to ensure an accurate fit with the valve guide, spring retainer, and rocker arm/camshaft system, providing smooth assembly and stable operation without misalignment.

2.High-Heat & Corrosion-Resistant Alloy for Extreme Combustion Conditions

• Manufactured from premium heat-resistant steel for outstanding durability under demanding engine conditions. The intake valve is designed to support efficient airflow into the combustion chamber, while the exhaust valve provides excellent resistance to high-temperature oxidation and high-pressure exhaust gas erosion, maintaining excellent structural strength even under exhaust temperatures of several hundred degrees Celsius.

3.Precision-Ground Surface for Superior Sealing & Reduced Wear

• The valve stem and valve face are precision-ground and surface-hardened to reduce friction against the valve guide. The precisely machined valve face provides a secure seal against the valve seat, helping maintain optimal cylinder compression while preventing combustion gas leakage and power loss.

4. Certified Quality – Made in Taiwan

•  Manufactured under stringent production standards and validated through 100% factory inspection to ensure flawless, ready-to-install performance and reliability.