Cylinder Works Big Bore Cylinder Kit with Vertex Pistons 80.00 mm for Yamaha (CW21013K01)

Upgrade your Yamaha engine with the Cylinder Works CW21013K01 Big Bore Cylinder Kit, engineered to support dependable performance, long service life, and reduced engine noise. This complete kit includes a precision-matched Vertex piston designed to work seamlessly with the Cylinder Works cylinder, helping deliver consistent operation and improved durability for demanding riding conditions.
The cylinder features a nickel-silicon-carbide cylinder sleeve that provides a hard, wear-resistant surface for reliable piston movement and extended service life. Its appearance closely matches the original equipment cylinder, making it a practical choice for engine rebuilding or performance upgrades while maintaining a factory-style look. The 80.00 mm bore supports increased displacement where applicable, offering a straightforward solution for riders seeking a quality big bore replacement.
The Cylinder Works kit includes the cylinder, piston, piston rings, wrist pin, retaining clips, and required gaskets for a comprehensive installation. The cylinder is designed to eliminate the need for machine work unless otherwise noted, helping simplify the rebuilding process and reduce preparation time. Each component is selected for compatibility and reliable performance as part of a complete engine solution.
Manufactured in the USA, the Cylinder Works CW21013K01 kit combines durable construction with carefully matched components for dependable results. Verify vehicle fitment and any application-specific installation requirements before purchase. Follow the manufacturer’s service procedures and torque specifications during assembly to help ensure proper engine operation.

Features:

• Brand: Cylinder Works

• Part Number: CW21013K01

• Application: Yamaha engines

• Kit Type: Big bore cylinder kit

• Bore Size: 80.00 mm

• Piston: Includes a matching Vertex piston

• Cylinder Sleeve: Nickel-silicon-carbide construction

• Kit Contents: Cylinder, piston, rings, wrist pin, retaining clips, and gaskets

• Installation: No machine work required unless otherwise noted

• Manufacturing: Made in the USA

• Appearance: Designed to closely match OEM cylinders

• Performance: Supports durability, reliable operation, and reduced engine noise

Ships from Parts Unlimited.