Cylinder Works High-Compression Cylinder Kit for Yamaha, 77 mm (20010-K02HC)

Upgrade your Yamaha engine with the Cylinder Works High-Compression Cylinder Kit, part number 20010-K02HC. Designed as a ready-to-install, direct bolt-on replacement, this kit requires no re-plating and is engineered to look virtually identical to the original equipment cylinder. Its high-compression configuration supports strong engine performance while maintaining a clean, factory-style installation.
The Cylinder Works kit includes a matched Vertex piston designed to promote long service life, reliable performance, and reduced engine noise. The complete top-end solution includes the cylinder, piston, piston rings, wrist pin, retaining clips, and top-end gasket kit, providing the essential components needed for a thorough engine rebuild or replacement.
The cylinder features a nickel silicon carbide plating process for excellent durability, wear resistance, and long-term performance. Manufactured in the USA, the Cylinder Works 20010-K02HC kit is built for riders and technicians seeking a dependable direct-fit upgrade with carefully matched components and consistent construction. Verify vehicle compatibility before installation and follow the manufacturer’s recommended assembly procedures.

Features:

• Brand: Cylinder Works

• Part Number: 20010-K02HC

• Application: Designed for compatible Yamaha engines

• Installation: Ready-to-install direct bolt-on cylinder kit

• Compression: High-compression configuration for enhanced engine performance

• Piston: Matched Vertex piston for durability, performance, and reduced engine noise

• Components: Includes cylinder, piston, rings, wrist pin, retaining clips, and top-end gasket kit

• Plating: Nickel silicon carbide plating for long service life and wear resistance

• Manufacturing: Made in the USA

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