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

• Standard bore 90 mm plated cylinder

• Vertex forged piston kit (11.3:1 compression)

• Rings, wrist pin, and circlips

• 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

• Nickel-silicon-carbide plated for long service life

• Includes Vertex piston matched to cylinder for quiet, efficient operation

• Factory look and fit — direct OEM replacement

• Complete top-end rebuild solution

• Made in the USA

Warranty Info

Backed by Cylinder Works’ limited warranty covering defects in materials and workmanship.

Price & SKU

• Retail Price: $648.95

• SKU: 422-40001K / 40001-K01

• Weight: 5.10 lb

• Handling: Ships next business day