Namura NX-20025K Top End Kit for 1993–2002 Kawasaki KX250, 66.35 mm Standard Bore
Namura NX-20025K Top End Kit for 1993–2002 Kawasaki KX250, 66.35 mm Standard Bore
Namura NX-20025K Top End Kit for 1993–2002 Kawasaki KX250, 66.35 mm Standard Bore
Namura NX-20025K Top End Kit for 1993–2002 Kawasaki KX250, 66.35 mm Standard Bore

Namura NX-20025K Top End Kit for 1993–2002 Kawasaki KX250, 66.35 mm Standard Bore

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Restore top-end performance with the Namura NX-20025K Top End Kit for Kawasaki KX250 models from 1993 through 2002. Designed for standard-bore applications with a 66.35 mm piston, this kit is suited for engines equipped with Nikasil-plated cylinders. It provides the essential components needed for a reliable top-end rebuild, including a piston, piston rings, wrist pin, wrist-pin clips, top-end bearing, and gasket kit.

The Namura piston uses a hypereutectic casting process that increases silicon content for controlled expansion, added wear resistance, and improved durability under elevated cylinder temperatures. Its MOS2 Teflon and molybdenum-coated skirts are applied using a rolled-on process that creates a strong bond, helping reduce friction, improve heat transfer, and minimize the risk of cold seizure. The machined smooth head helps reflect combustion heat and resist carbon buildup, while the anodized dome improves heat resistance and piston durability.

Fitment: This Namura top-end kit fits 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, and 2002 Kawasaki KX250 motorcycles. Confirm the model year, cylinder condition, and required piston clearance before installation. Manufacturer part number: NX-20025K. Vendor part number: 185-2025.

Features:

  • Complete top-end kit includes piston, rings, wrist pin, wrist-pin clips, top-end bearing, and gasket kit
  • 66.35 mm standard-bore piston designed for Kawasaki KX250 models with Nikasil-plated cylinders
  • MOS2 Teflon and molybdenum-coated skirts help reduce friction, improve heat transfer, and minimize cold-seizure risk
  • Machined smooth piston head helps reflect combustion heat and reduce carbon buildup
  • Anodized piston dome increases heat resistance and durability
  • Hypereutectic casting process provides controlled expansion, wear resistance, and durability at high cylinder temperatures
  • Fits 1993–2002 Kawasaki KX250 motorcycles
  • Brand: Namura
  • Manufacturer part number: NX-20025K
  • Vendor part number: 185-2025

Fitment:
1993 Kawasaki KX250
1994 Kawasaki KX250
1995 Kawasaki KX250
1996 Kawasaki KX250
1997 Kawasaki KX250
1998 Kawasaki KX250
1999 Kawasaki KX250
2000 Kawasaki KX250
2001 Kawasaki KX250
2002 Kawasaki KX250
2003 Kawasaki KX250