Cylinder Works 21005-K01 Big Bore Kit - 99 mm - Yamaha YZ450F (2010-2013)
- Ships next business day
- 30-day hassle-free returns
- Call us: 541-668-7503
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Maximize your Yamaha's power with the Cylinder Works 21005-K01 Big Bore Cylinder Kit. This bolt-on kit includes a cylinder, Vertex piston, and top-end gaskets for enhanced performance.
✓ Fits:
- Yamaha:
- 2010-2013 YZ450F
✓ Features:
- Big bore design increases displacement to 470 cc (+2.00 mm overbore)
- Nickel-silicon carbide-plated cylinder for durability and long life
- Includes matched Vertex pistons for longevity and reduced engine noise
- Virtually identical to OEM cylinders
- Made in the U.S.A.
- Compression ratio: 12.5:1
- No machine work required
✓ What's Included:
- Big Bore Cylinder (99.00 mm)
- Vertex Piston Kit (piston, rings, pin, clips)
- Top-End Gasket Kit
✓ Specs:
- 6.85" (H) × 11.29" (L) × 8.46" (W)
- Availability: In stock. Ships next business day
Note: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Note: Always verify fitment by year, make, model, and engine specifications before ordering. Replaces OEM part number: 33D113110000.
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📦 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.
