Wiseco Pro-Lite Piston Kit (66.40mm Bore / Standard Size) 617M06640

Wiseco Pro-Lite Piston Kit (66.40mm Bore / Standard Size)

Part Number: 617M06640

Fitment: Kawasaki KX250 (1992–2001)

Product Overview

Upgrade or rebuild your 2-stroke top end with the Wiseco Pro-Lite Forged Piston Kit. Engineered and manufactured in the USA, Wiseco pistons are CNC-machined from high-silicon, low-expansion aluminum alloy to deliver high structural integrity, lightweight performance, and superior heat dissipation compared to stock cast pistons.

The Pro-Lite series reduces reciprocating weight for faster RPM pickup, smooth power delivery, and immediate throttle response—giving your KX250 maximum reliability on the track or trail.

Key Features & Benefits

• Forged High-Silicon Alloy: High-density grain structure offers exceptional strength and fatigue resistance under high RPMs.

• Pro-Lite Weight Reduction: Engineered to minimize piston mass for quicker throttle response and reduced engine vibration.

• CNC Precision: Machined to tight tolerances for optimal cylinder fitment and compression stability.

• Complete Kit: Includes all essential hardware for a hassle-free top-end installation.

Package Includes

• 1x Wiseco Forged Pro-Lite Piston (617M06640)

• 1x High-Performance Ring Set (2614CD - 66.40mm)

• 1x Wrist Pin (S508)

• 2x Circlips (CW18)

Specifications

• Manufacturer: Wiseco

• MPN: 617M06640

• Engine Type: 2-Stroke ICE

• Cylinder Bore: 66.40 mm (Standard Bore)

• Piston Diameter: 66.36 mm

• Stroke: 72.00 mm

• Displacement: 249cc

Fitment

• Kawasaki KX250: 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001

Shipping & Store Policies

• Fast Shipping: Packed securely and shipped within 1 business day.

• Fitment Verification: Please confirm cylinder bore diameter (Standard 66.40mm) and condition prior to purchase.