Cylinder Works 77mm Kit – Yamaha YZ250F / WR250F (2001–2004) - Dune Goons
Cylinder Works 77mm Kit – Yamaha YZ250F / WR250F (2001–2004)
Cylinder Works 77mm Kit – Yamaha YZ250F / WR250F (2001–2004) - Dune Goons
Cylinder Works 77mm Kit – Yamaha YZ250F / WR250F (2001–2004)

Cylinder Works 77mm Kit – Yamaha YZ250F / WR250F (2001–2004)

  • Ships next business day
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  • Call us: 541-668-7503
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$1,069.00
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Cylinder Works 77mm Standard Bore Cylinder Kit – Fits Yamaha YZ250F & WR250F (2001–2004)

Bring your early-generation Yamaha 250F engine back to factory performance with the Cylinder Works 77.00 mm Standard Bore Cylinder Kit. Designed as a direct OEM-style replacement, this complete top-end rebuild kit includes everything needed to restore compression, durability, and reliability—no replating or machining required.

✅ What’s Included

  • 77.00 mm Nickel–Silicon Carbide plated cylinder

  • Vertex piston kit (piston, rings, wrist pin, circlips)

  • Top-end gasket set for a complete rebuild

⚙️ Key Features

  • Direct bolt-on design — ready to install, no replating necessary

  • Nickel–Silicon Carbide coating provides exceptional heat resistance and wear protection

  • Matched Vertex piston kit ensures quiet operation and long-term performance

  • 12.7:1 compression ratio for strong, responsive power delivery

  • Made in the USA to exacting standards

⚠️ For closed-course competition use only. Not legal for use on public lands or highways in California.

📦 Fitment

Yamaha Models (2001–2004):

  • YZ250F

  • WR250F

🛡️ Warranty Info

Backed by Cylinder Works’ limited manufacturer warranty.
Professional installation is recommended for proper performance and longevity.

💲 Suggested Retail: $694.95
🔢 SKU: 0931-0278 / 20002-K01
🏷️ Brand: Cylinder Works

📦 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.

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