Cylinder Works 90mm Standard Bore Kit DR-Z400 / KFX400 / DVX400 (2000–2022)
Cylinder Works 90mm Standard Bore Cylinder Kit – Suzuki DR-Z400 / Kawasaki KFX400 / Arctic Cat DVX400 (2000–2022) – 11.3:1 Compression – 422-40001K / 40001-K01
Description
Restore or upgrade your DR-Z400, KFX400, or DVX400 engine with this Cylinder Works 90 mm Standard Bore Cylinder Kit. Featuring a factory-style appearance and nickel-silicon-carbide plating for extended wear life, this bolt-on kit delivers OEM reliability with high-performance precision. Ideal for rebuilds, refreshes, or replacing worn cylinders without the need for machine work.
What’s Included
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Standard bore 90 mm plated cylinder
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Vertex forged piston kit (11.3:1 compression)
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Rings, wrist pin, and circlips
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Top-end gasket kit
(Valve-stem seals not included.)
Fitment
Direct fit for the following models:
Suzuki DR-Z400 / DR-Z400S / DR-Z400SM / LT-Z400 (2000–2022)
Kawasaki KFX400 (2003–2006)
Kawasaki KLX400R (2003–2004)
Arctic Cat DVX400 (2004–2008)
✅ OEM bolt-on replacement — no machine work required
✅ Designed for closed-course and off-road competition use only
Key Features
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Nickel-silicon-carbide plated for long service life
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Includes Vertex piston matched to cylinder for quiet, efficient operation
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Factory look and fit — direct OEM replacement
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Complete top-end rebuild solution
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Made in the USA
Warranty Info
Backed by Cylinder Works’ limited warranty covering defects in materials and workmanship.
Price & SKU
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Retail Price: $648.95
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SKU: 422-40001K / 40001-K01
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Weight: 5.10 lb
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Handling: 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.