WSM Piston Kit - 66.50 mm for Yamaha Engines, Part Number 50-530-05PK

The WSM Piston Kit (Part Number 50-530-05PK) is designed for Yamaha engines and offers high-quality construction that meets or exceeds OEM standards. Crafted with durability and performance in mind, this kit features pistons with a nonabrasive MoS2 (Molybdenum Disulfide) coating that reduces heat and friction, leading to increased power output and extended engine life. The MoS2 coating actively draws heat away from piston walls and out the bottom, enhancing thermal management during operation. Additionally, the pistons feature specially hardened tops that reinforce the strength of the ring grooves, ensuring longevity under demanding conditions. The kit incorporates an improved E-clip design for secure and reliable assembly, requiring one piston per cylinder for optimal performance. Designed for precise fit and reliable operation, this piston kit is an essential upgrade for maintaining or restoring Yamaha engine performance, particularly in high-stress applications where durability and heat management are critical.

Features:

• High-quality construction that meets or exceeds OEM standards

• Nonabrasive MoS2 (Molybdenum Disulfide) coating reduces heat and friction

• MoS2 coating draws heat through piston walls and out the bottom for better thermal management

• Specially hardened tops reinforce ring groove strength

• Improved E-clip design for secure fitting

• Designed for Yamaha engines, size: 66.50 mm

• Order one piston per cylinder for optimal performance