Cylinder Works Cylinder Kit 95mm STD 12.0:1 – Yamaha YFZ450 2004–2013 (20001-K01)
- Ships next business day
- 30-day hassle-free returns
- Call us: 541-668-7503
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✓ Fits:
- 2004-2013 Yamaha YFZ450
✓ Features:
- 95.00mm Ni-SiC plated cylinder (stock bore)
- 12.0:1 compression for stronger pull and throttle response
- Matched Vertex piston + cylinder for longevity, performance, and reduced engine noise
- Stock-look casting ; replacement pistons, rings, and gaskets available
- Closed course competition use ONLY.
- Use on public lands or highways in California is illegal.
- Part / Brand Number: 20001-K01 (422-20001K)
✓ What's Included:
- Vertex piston kit (piston, rings, wrist pin, circlips)
- Top-end gasket set
Ships fast from DuneGoonShop!
📦 Shipping Information
In-Stock Items:
- Most parts ship next business day
- Modquad parts: Monday–Thursday dispatch
Made-to-Order Items:
- Custom swingarms & A-arms: 2–4 weeks
- EVP exhaust systems: 2–4 weeks
Stock Guarantee: Items marked "In Stock" ship immediately. Made-to-order items are built fresh for you.
Questions? Contact us—we respond within 24 hours.
