Wiseco PK1890 High-Performance Forged Piston Kit 96mm 13:1 Domed ArmorGlide

The Wiseco PK1890 is a high-performance top-end piston kit engineered specifically for the 2013–2014 Kawasaki KX450F. Featuring a domed 13:1 high-compression forged piston with a 96mm bore, this kit is designed to deliver maximum power and durability under the most demanding racing conditions.

Wiseco pistons are engineered, forged, and machined entirely in the USA at their facility in Mentor, OH. By controlling every stage of production—from raw material to finished part—Wiseco maintains the tightest tolerances and highest quality standards in the industry.

ArmorGlide Skirt Coating: The piston skirt features Wiseco's proprietary ArmorGlide coating, developed through rigorous in-house dyno testing. This advanced coating reduces friction, improves ring seal by allowing a tighter bore fit, increases horsepower, and minimizes piston rock noise for a quieter, more efficient build.

Forged Construction Advantage: Unlike cast pistons, which are brittle and prone to catastrophic failure under stress, Wiseco's forged pistons feature a condensed, aligned grain structure that delivers superior tensile strength, impact resistance, and fatigue resistance. Each dedicated forging is optimized for an ideal strength-to-weight ratio tailored to this specific engine application.

Kit Includes:

• Forged domed piston — 96mm bore, 13:1 compression ratio
• High-performance piston rings
• Alloy wrist pin
• Circlips
• Top-end gasket kit

Key Specifications:

• MPN: PK1890
• Bore: 96.00mm (Standard)
• Compression Ratio: 13:1 (High Compression)
• Piston Profile: Domed
• Skirt Coating: ArmorGlide
• Material: Aerospace-alloy forged construction
• Manufactured in USA