Cylinder Works 40004-K03 Standard Bore High-Compression Cylinder Kit for Suzuki RM-Z250

Upgrade the top end of your compatible Suzuki motocross motorcycle with the Cylinder Works 40004-K03 Standard Bore High-Compression Cylinder Kit. Designed for the 2016, 2017, and 2018 Suzuki RM-Z250, this complete kit includes a standard-bore cylinder, matched piston kit, and required top-end gaskets for a reliable replacement and performance-focused rebuild. The 13.75:1 compression configuration is engineered to support strong engine performance while maintaining dependable operation.

The Cylinder Works cylinder is styled to closely match the original equipment appearance and features a nickel silicon carbide plated bore for extended service life, consistent performance, and improved wear resistance. The included Vertex piston is matched to the cylinder to promote longevity, help reduce engine noise, and provide accurate fitment. Because the kit is designed as a direct replacement, no machining is required for installation when used with the specified application and compatible components.

Fitment: This Cylinder Works 40004-K03 kit fits 2016 Suzuki RM-Z250, 2017 Suzuki RM-Z250, and 2018 Suzuki RM-Z250 models. The top-end gasket kit does not include valve stem seals, so inspect existing seals and replace them separately if needed. Replacement pistons, gaskets, and ring sets are available for future service requirements. Always verify model-year application and engine specifications before installation.

Features:

• Complete standard-bore high-compression kit for compatible Suzuki RM-Z250 models
• Includes cylinder, matched Vertex piston kit, piston rings, and gaskets
• 13.75:1 compression ratio supports strong engine performance
• Nickel silicon carbide plated cylinder bore promotes long service life and wear resistance
• Cylinder appearance closely matches the original equipment design
• Matched piston and cylinder help support longevity, performance, and reduced engine noise
• No machine work required for the specified application
• Top-end gasket kit does not include valve stem seals
• Replacement pistons, gaskets, and ring sets are available
• Fits 2016, 2017, and 2018 Suzuki RM-Z250 motorcycles
• Brand: Cylinder Works
• Manufacturer part number: 40004-K03
• Vendor part number: 422-40004K3