Cylinder Works 95 mm Cylinder Kit Yamaha WR450F YZ450F
Yamaha WR450F / YZ450F 95 mm Standard-Bore Cylinder Kit – Cylinder Works (20003-K01)
Keep it OEM-smooth and track-ready with this direct bolt-on 95 mm Cylinder Works standard-bore kit. Delivers 12.5:1 compression and OEM look/fit with durable Nickel-Silicon Carbide plating. No replating or machining required—install and ride.
✅ What’s Included
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95 mm Nickel-Silicon Carbide–plated cylinder
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Vertex piston kit (piston, rings, wrist pin, circlips)
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Complete top-end gasket kit
📦 Fitment
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2007 – 2015 Yamaha WR450F
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2006 – 2009 Yamaha YZ450F
Direct OEM replacement for: 2S2111810000, 2S2113110000, 2S2113111000, 2S2113510000, 2S2116311000.
No case mods or replating required.
🛡️ Warranty Info
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Manufacturer warranty on materials/workmanship
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Made in the USA
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Prop 65 warning applies (California)
🔑 Key Features
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Standard bore, 449 cc with 12.5:1 compression for reliable power
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OEM-style gray finish; matches stock appearance
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Nickel-Silicon Carbide coating for long service life and low friction
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Vertex piston pairing for quiet operation and longevity
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All gaskets and top-end parts included for a true bolt-on refresh
💲 Price & SKU
Price: $694.95
SKU / Part Number: 0931-0282 | Cylinder Works 20003-K01
Estimated Shipping Weight: 3.33 lbs
Handling Time: Ships Next Business Day
📦 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
- Sneakers: 1–2 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.
