Cylinder Works Standard Bore Cylinder 20010 — Yamaha YZ250F / YZ250FX / WR250F 2014-2019

Product Description

The Cylinder Works Standard Bore Cylinder 20010 is the premier choice for riders looking to restore their Yamaha YZ250F, YZ250FX, or WR250F to factory-spec reliability. This cylinder is engineered for a seamless, direct bolt-on installation, meaning you can skip the time-consuming process of re-plating your original cylinder. Its high-grade cast aluminum construction and precision nickel silicon carbide-plated bore offer maximum durability and heat management, ensuring your engine performs consistently, even in the most demanding race or trail environments.

Proudly manufactured in the USA, this cylinder is designed to look and function exactly like your OEM component. Whether you are addressing a worn-out top end or recovering from mechanical damage, this unit provides the exact 77.00 mm standard bore dimensions required to regain optimal compression and power. Get back on the bike with confidence knowing your engine rebuild is backed by industry-leading quality and precise engineering.

Top Features: Cylinder Works Standard Bore Cylinder

• Ready-to-install, direct bolt-on design—eliminates the need for re-plating
• Advanced nickel silicon carbide-plated bore for superior wear resistance
• Constructed from premium cast aluminum for optimal thermal management
• Engineered to maintain OEM-identical appearance and precise factory geometry
• Proudly manufactured in the U.S.A. for consistent, professional-grade quality

Please review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.

Fitment List

Frequently Asked Questions

Q: Does this cylinder come with gaskets?
A: This product is the cylinder unit only. We recommend pairing this with a high-quality top-end gasket kit to ensure a perfect seal during your engine rebuild.

Q: Is this cylinder compatible with a stock piston?
A: Yes, this is a standard bore (77.00 mm) cylinder and is designed to be compatible with any standard-sized piston kit that meets Yamaha's OEM specifications.

Expert Pro-Tip

Expert Pro-Tip: After installing a new cylinder, always check your air filter and intake track for any lingering dirt before the initial start-up. Even a microscopic speck of grit left over from your engine disassembly can score the new nickel silicon carbide plating during the first few minutes of run-time. A surgically clean work area is just as important as the quality of the parts you use.

Recommended Pairings

Recommended Pairings:
o Yamaha 4-Stroke Performance Parts & Upgrades
o Premium Motorcycle Chemicals
o YZ250F / YZ250FX Performance Parts

About Moto-House MX

At Moto-House MX, we carry the best brands in motocross and off-road performance. Our team has over 40 years of experience helping riders get more out of their bikes. Every order ships fast from our Central Florida location.

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