Namura NX-30085K Top End Kit for Suzuki RM85, Standard 47.94 mm Bore

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Restore dependable top-end performance with the Namura NX-30085K Top End Kit for Suzuki RM85 models. Designed for a standard 47.94 mm bore, this complete kit includes a piston, piston rings, wrist pin, wrist-pin clips, top-end bearing, and gasket kit. It is engineered for reliable fitment and service on 2002–2009 and 2012 Suzuki RM85 models, as well as the 2020 Suzuki RM85.

The piston uses a hypereutectic casting process that increases silicon content to help control expansion, improve wear resistance, and withstand higher cylinder temperatures. Its MOS2, or Teflon/molybdenum, coated skirts use a rolled-on application process designed to create a stronger bond than conventional spray-on coatings. This coating helps improve heat transfer, reduce friction, and minimize the risk of cold seizures during operation.

Machined smooth heads help reflect combustion heat and reduce carbon buildup, providing added protection for the piston crown. The anodized dome improves heat resistance and durability, with Namura engineering the dome for greater strength than a non-anodized design. Together, these features support consistent operation and long-lasting top-end service for riders and technicians seeking a complete replacement solution.

Verify the cylinder condition, bore specification, and model year before installation. The Namura NX-30085K is a direct-fit top-end service kit for the listed Suzuki RM85 applications and is manufactured by Namura for dependable replacement performance. Vendor part number: 185-3085.

Features:

  • Complete Top End Kit: Includes piston, rings, wrist pin, clips, top-end bearing, and gasket kit.
  • MOS2-Coated Skirts: Rolled-on Teflon and molybdenum coating helps improve heat transfer, reduce friction, and minimize cold-seizure risk.
  • Machined Smooth Head: Reflects combustion heat and helps reduce carbon buildup for added piston protection.
  • Anodized Dome: Improves heat resistance and durability while providing increased dome strength.
  • Hypereutectic Construction: Higher silicon content helps reduce expansion, improve wear resistance, and withstand elevated cylinder temperatures.
  • Application Fitment: Fits 2002–2009, 2012, and 2020 Suzuki RM85 models with a standard 47.94 mm bore.
  • Manufacturer: Namura.
  • Part Number: NX-30085K.
  • Vendor Part Number: 185-3085.

Fitment:
2002 Suzuki RM85
2003 Suzuki RM85
2004 Suzuki RM85
2005 Suzuki RM85
2006 Suzuki RM85
2007 Suzuki RM85
2008 Suzuki RM85
2009 Suzuki RM85
2010 Suzuki RM85
2011 Suzuki RM85
2012 Suzuki RM85
2013 Suzuki RM85
2014 Suzuki RM85
2015 Suzuki RM85
2016 Suzuki RM85
2017 Suzuki RM85
2018 Suzuki RM85
2019 Suzuki RM85
2020 Suzuki RM85
2021 Suzuki RM85