Cylinder Works 20009 Cylinder – Yamaha YZ250 (1999-2025)
- Ships next business day
- 30-day hassle-free returns
- Call us: 541-668-7503
- Secure checkout — Pay in 4 available
Cylinder Works Standard Bore Cylinder – Yamaha YZ250 (1999–2025)
Bring your YZ250 back to factory performance with the Cylinder Works 20009 Standard Bore Cylinder. This direct-bolt-on replacement delivers OEM fit, finish, and durability without the hassle of replating or machine work. Perfect for complete top-end rebuilds or fresh race prep.
Description
Precision-engineered and nickel-silicon-carbide plated, this cylinder provides excellent heat transfer, wear resistance, and long service life. Each unit is cast and finished in the USA to meet or exceed OEM standards, ensuring a perfect fit for all YZ250 2-stroke engines from 1999 through 2025.
What’s Included
✅ Cylinder Works 66.40 mm Standard Bore Cylinder
✅ Ready-to-install — direct bolt-on design
✅ Works with OEM or stock-bore piston and gasket kits
Fitment
📦 Yamaha YZ250 (1999 – 2025)
Designed for stock-bore (66.4 mm) top ends. Works with OEM cylinder head and valves.
Warranty Info
🛡️ Backed by Cylinder Works USA manufacturing quality and material warranty.
Key Features
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Ready to install — no replating or machining required
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Nickel-silicon-carbide plating for long-life performance
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OEM-grade casting and finish; matches factory port layout
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Maintains 250 cc displacement and original compression
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Made in the USA
Price & SKU
💲 Retail Price: $597.95
🔑 SKU: 0931-1078 / 20009
⚖️ Weight: 6.06 lb
📦 Ships next business day from stocked warehouse
📦 Shipping Information
In-stock items ship next business day. ModQuad parts dispatch Monday through Thursday.
Made-to-order and custom powder coat items show their lead time at the top of this page, right next to the truck icon. These are built fresh for you, so timing varies by brand and current backlog.
Need something by a specific date? Call us at 541-668-7503 before ordering and we will check stock and ETA on that exact part. We can often point you to an in-stock alternative from another distributor.
Questions? Contact us, we respond within 24 hours.
