Cylinder Works Big Bore Cylinder - Yamaha WR450F / YFZ450 / YFZ450R & More (2006-2026)
Cylinder Works Big Bore Cylinder - Yamaha WR450F / YFZ450 / YFZ450R & More (2006-2026)
Cylinder Works Big Bore Cylinder - Yamaha WR450F / YFZ450 / YFZ450R & More (2006-2026)
Cylinder Works Big Bore Cylinder - Yamaha WR450F / YFZ450 / YFZ450R & More (2006-2026)

Cylinder Works Big Bore Cylinder - Yamaha WR450F / YFZ450 / YFZ450R & More (2006-2026)

  • Ships next business day
  • 30-day hassle-free returns
  • Call us: 541-668-7503
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Regular price$482.95
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Shipping calculated at checkout.

✓ Fits:

  • 2007-2015 Yamaha WR450F
  • 2017 Yamaha YFZ450
  • 2009-2026 Yamaha YFZ450R SE
  • 2009-2026 Yamaha YFZ450R
  • 2010 Yamaha YFZ450X Bill Balance Edition
  • 2010-2011 Yamaha YFZ450X
  • 2006-2009 Yamaha YZ450F

✓ Features:

  • Genuine Cylinder Works part, sold direct from an authorized All Balls Racing Group dealer
  • Built to OEM specs with a durable plated bore
  • Direct bolt-on replacement for a fresh top end
  • Cylinder Diameter: 98 mm
  • Cylinder Kit Type: Big Bore
  • Displacement: 480 cc
  • Engine Type: 4-Cycle
  • Size Over Standard: 3.00mm

✓ What's Included:

  • (1) Big Bore Cylinder

Part #: 21003-1

Ships fast from DuneGoonShop!

📦 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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