Select type, year, make, and model
Upgrade your Yamaha engine with the KPMI Cylinder Stud Kit (Part 80-82600), engineered for maximum durability and performance. Crafted from premium grade 8740 steel with a yield strength of 180,000 psi, these high-performance studs are designed to withstand extreme conditions and ensure reliable engine operation. The studs undergo a heat treatment process to enhance their strength, and the threads are rolled after heat treating to maintain optimal compressive stresses, greatly extending their fatigue life. The case end threads are specifically designed with a slight interference fit, providing excellent thread contact even at high temperatures, which helps prevent loosening during operation. Manufactured with centerless grinding, these studs are perfectly concentric, ensuring a precise fit and balanced engine assembly. Finished with a sleek black oxide coating, they deliver an excellent appearance while resisting corrosion and wear, making them suitable for demanding racing or high-performance applications.
Features:
US Dollars
