Cylinder Works CW20015K01 47.50 mm Standard Cylinder Kit – Yamaha YZ85 2002-2018

Restore your Yamaha YZ85 with the Cylinder Works CW20015K01 47.50 mm Standard Cylinder Kit, designed for 2002-2018 models. This kit includes a cylinder, Vertex piston, and gaskets, delivering OEM-quality performance for closed-course competition use. We price-match reputable online stores—contact us to ensure you get the best deal!

✅ What’s Included

• Cylinder Works Standard Cylinder (CW20015K01)

• Vertex Piston Kit (piston, rings, pin, clips)

• Top-End Gasket Set

• Installation-ready, direct bolt-on design

• No additional hardware included (uses existing hardware)

🔑 Key Features

• Ready-to-install, direct bolt-on cylinder; no re-plating required

• Nickel-silicon carbide-plated for extended durability and long life

• Matched Vertex piston for longevity, performance, and reduced engine noise

• Virtually identical appearance to OEM cylinders

• Replacement piston, gaskets, and ring sets available separately

• Made in the U.S.A.

• Compatible with 47.50 mm bore (typical for YZ85 ~85 cc displacement)

• 4-cycle engine

• Warning: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

• Note: Designed exclusively for closed-course competition use ONLY. Use on public lands or highways in California is illegal.

📦 Fitment (Highlights)

• Yamaha:

  • 2002-2018 YZ85

• Notes: Always verify fitment by year, make, model, and engine specifications before ordering. UPC: 714205079364.

💲 Price & SKU

• Retail Price: $596.95

• SKU: 422-20015K / CW20015K01

• Note: We price-match reputable online stores—contact us for the best price!

• Weight: 6.00 lbs

• Dimensions: 10.00" (H) × 9.50" (L) × 8.00" (W)

• Availability: In stock. Ships next business day

🛡️ Warranty

• Contact Cylinder Works for warranty details (proof of purchase required)

🔧 Installation Tips

• Torque cylinder head bolts to Yamaha specs (~15-20 ft-lbs, consult manual).

• Check valve clearances after installation.

• Verify jetting (e.g., stock Mikuni carb) for optimal performance.