Restore dependable top-end performance with the Namura Top End Kit, part number NX-70005-BK. Designed for KTM 65 two-stroke engines with Nikasil-plated cylinders, this kit includes the piston, piston rings, wrist pin, retaining clips, top-end bearing, and gasket kit needed for a comprehensive top-end service. The 44.97 mm piston is engineered for the specified cylinder application and provides a reliable replacement solution for worn or damaged components.
The Namura piston features MOS2, or Teflon and molybdenum, coated skirts applied through a rolled-on process. This coating is designed to provide a strong bond while helping reduce friction, improve heat transfer, and minimize the risk of cold seizures. Machined smooth heads help reflect combustion heat and reduce carbon buildup, supporting piston protection and consistent engine operation. The anodized dome improves heat resistance and durability, while the hypereutectic casting process increases silicon content for controlled expansion, added wear resistance, and improved performance under elevated cylinder temperatures.
This Namura Top End Kit fits 2009 through 2017 KTM 65 SX models and the 2009 KTM 65 XC. Verify the cylinder type, model year, and required piston clearance before installation. The kit is intended for servicing the top end of compatible KTM 65 engines and should be installed according to the manufacturer's service procedures.
Features:
- Complete top-end kit includes piston, rings, wrist pin, retaining clips, top-end bearing, and gasket kit
- 44.97 mm piston designed for compatible Nikasil-plated cylinders
- MOS2 Teflon and molybdenum coated skirt helps 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 improves heat resistance and durability
- Hypereutectic casting process provides controlled expansion and increased wear resistance
- Fits 2009–2017 KTM 65 SX and 2009 KTM 65 XC models
- Brand: Namura
- Manufacturer part number: NX-70005-BK
- Vendor part number: 185-7005B
Fitment:
2009 KTM 65 SX
2009 KTM 65 XC
2010 KTM 65 SX
2011 KTM 65 SX
2012 KTM 65 SX
2013 KTM 65 SX
2014 KTM 65 SX
2015 KTM 65 SX
2016 KTM 65 SX
2017 Husqvarna TC 65
2017 KTM 65 SX
2018 Husqvarna TC 65
2018 KTM 65 SX
2019 Husqvarna TC 65
2019 KTM 65 SX
2020 Husqvarna TC 65
2020 KTM 65 SX
2021 Gas-Gas Mc 65
2021 Husqvarna TC 65
2021 KTM 65 SX