The Namura NX-20085-BK Top End Kit is designed for Kawasaki KX85 models from 2001 through 2010 with a Nikasil cylinder. This complete top-end replacement kit includes a piston, piston rings, wrist pin, retaining clips, top-end bearing, and gasket kit for a convenient engine refresh and reliable fitment. The 48.46 mm piston size and 9.2:1 compression ratio are suited to the specified Kawasaki KX85 application.
Namura builds this piston with a hypereutectic casting process that increases silicon content to help control expansion, improve wear resistance, and withstand elevated cylinder temperatures. The piston skirts feature a rolled-on MOS2 coating made with Teflon and molybdenum. This bonded coating helps reduce friction, improve heat transfer, and minimize the risk of cold seizures during operation.
Additional design features include machined smooth heads that help reflect combustion heat and reduce carbon buildup, along with anodized domes for improved heat resistance and durability. These components support dependable performance and long service life when installed with proper cylinder inspection, clearance verification, and engine assembly procedures. The Namura manufacturer part number is NX-20085-BK, and the vendor part number is 185-2085B.
Fitment: Fits 2001-2010 Kawasaki KX85 models equipped with a Nikasil cylinder.
Features:
- Complete top-end kit includes piston, rings, wrist pin, retaining clips, top-end bearing, and gasket kit
- MOS2 Teflon and molybdenum-coated piston skirts help reduce friction, improve heat transfer, and minimize cold-seizure risk
- Machined smooth piston heads help reflect combustion heat and reduce carbon buildup
- Anodized piston domes provide increased heat resistance and durability
- Hypereutectic casting process improves wear resistance, controls expansion, and supports operation at higher cylinder temperatures
- 48.46 mm piston size with a 9.2:1 compression ratio
- Fits 2001-2010 Kawasaki KX85 models with a Nikasil cylinder
- Brand: Namura; manufacturer part number: NX-20085-BK; vendor part number: 185-2085B
Fitment:
2001 Kawasaki KX85
2002 Kawasaki KX85
2003 Kawasaki KX85
2004 Kawasaki KX85
2005 Kawasaki KX85
2006 Kawasaki KX85
2007 Kawasaki KX85
2008 Kawasaki KX85
2009 Kawasaki KX85
2010 Kawasaki KX85
2011 Kawasaki KX85
2012 Kawasaki KX85
2013 Kawasaki KX85