Cylinder Works Engine Cylinder 20009 — Yamaha YZ250 1999-2025
Product Description
The Cylinder Works 20009 Engine Cylinder is the premier choice for riders performing a top-end rebuild on their Yamaha YZ250. This standard bore cylinder is designed as a ready-to-install, direct bolt-on replacement, eliminating the downtime and hassle associated with re-plating your old cylinder.
Precision-engineered in the U.S.A., this cylinder features a durable Nickel Silicon Carbide plating that provides superior friction reduction and heat dissipation. It is manufactured to meet or exceed OEM specifications, ensuring a perfect fit and reliable performance for your 2-cycle engine.
Top Features: Cylinder Works Engine Cylinder
- Ready-to-install, direct bolt-on design for a seamless installation
- Features high-performance Nickel Silicon Carbide plating for extended service life
- Virtually identical appearance to OEM cylinders
- Manufactured in the U.S.A. with strict quality control
- Standard 66.40mm bore size for factory-spec displacement
Please review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.
Fitment List
| Year Range |
Vehicle Brand |
Vehicle Model & Sub-Model |
| 1999-2025 |
Yamaha |
YZ250 |
Frequently Asked Questions
Q: Do I need to perform any machine work to install this cylinder?
A: No. This Cylinder Works unit is a direct drop-in replacement. Because it is a standard bore cylinder, it does not require any additional machining for installation.
Q: Does this cylinder come with a piston kit?
A: This product listing is for the cylinder block only. We highly recommend pairing this with a fresh piston kit, rings, and a complete top-end gasket set to ensure maximum longevity.
Expert Pro-Tip: When installing a new cylinder, always check your ring end gap before assembling the top end. Even on a brand-new cylinder, taking a minute to verify these tolerances ensures your piston and rings break in correctly and prevents premature wear or seizing.
Recommended Pairings:
o Yamaha YZ250 Performance Parts & Upgrades
o Yamaha 2-Stroke Performance Parts
o Motorcycle Chemicals & Assembly Lubes
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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