Namura NX-20030R piston rings are designed specifically for use with compatible Namura pistons measuring 76.94 mm. This replacement ring set supports proper combustion sealing, oil control, and piston performance in high-performance off-road applications. Use these rings only with Namura pistons that match the specified piston and ring profile.
Designed for fitment on select 2010–2017 Suzuki RM-Z250 models and 2015–2016 Yamaha WR250F models, the NX-20030R provides a reliable replacement solution during piston service or top-end engine rebuilding. Correct ring selection and installation are essential for maintaining compression, minimizing oil consumption, and supporting dependable engine operation.
Verify the piston model, ring groove configuration, and application before installation. Follow the engine manufacturer’s service procedures for ring orientation, end-gap inspection, cylinder preparation, and break-in. The manufacturer part number is NX-20030R, and the vendor part number is 185-2030R.
Features:
- Size: 76.94 mm piston ring set
- Application: For use with compatible Namura pistons only
- Brand: Namura
- Manufacturer Part Number: NX-20030R
- Vendor Part Number: 185-2030R
- Fitment: 2010–2017 Suzuki RM-Z250
- Fitment: 2015–2016 Yamaha WR250F
- Use: Replacement rings for piston service and top-end engine rebuilding
Fitment:
2001 Yamaha WR250F
2001 Yamaha YZ250F
2002 Yamaha WR250F
2002 Yamaha YZ250F
2003 Yamaha WR250F
2003 Yamaha YZ250F
2004 Kawasaki KX250F
2004 Suzuki RM-Z250
2004 Yamaha WR250F
2004 Yamaha YZ250F
2005 Kawasaki KX250F
2005 Suzuki RM-Z250
2005 Yamaha WR250F
2005 Yamaha YZ250F
2006 Kawasaki KX250F
2006 Suzuki RM-Z250
2006 Yamaha WR250F
2006 Yamaha YZ250F
2007 Kawasaki KX250F
2007 Yamaha WR250F
2007 Yamaha YZ250F
2008 Kawasaki KX250F
2008 Yamaha WR250F
2008 Yamaha YZ250F
2009 Kawasaki KX250F
2009 Yamaha WR250F
2009 Yamaha YZ250F
2010 Gas-Gas EC 250F
2010 Suzuki RM-Z250
2010 Yamaha WR250F
2010 Yamaha YZ250F
2011 Gas-Gas EC 250F
2011 Suzuki RM-Z250
2011 Yamaha WR250F
2011 Yamaha YZ250F
2012 Gas-Gas EC 250F
2012 Suzuki RM-Z250
2012 Yamaha WR250F
2012 Yamaha YZ250F
2013 Gas-Gas EC 250F
2013 Suzuki RM-Z250
2013 Yamaha WR250F
2013 Yamaha YZ250F
2014 Gas-Gas EC 250F
2014 Suzuki RM-Z250
2014 Yamaha YZ250F
2015 Gas-Gas EC 250F
2015 Suzuki RM-Z250
2015 Yamaha WR250F
2015 Yamaha YZ250F
2015 Yamaha YZ250FX
2016 Suzuki RM-Z250
2016 Yamaha WR250F
2016 Yamaha YZ250F
2016 Yamaha YZ250FX
2017 Suzuki RM-Z250
2017 Yamaha WR250F
2017 Yamaha YZ250F
2017 Yamaha YZ250FX
2018 Suzuki RM-Z250
2018 Yamaha WR250F
2018 Yamaha YZ250F
2018 Yamaha YZ250FX
2019 Suzuki RM-Z250
2019 Yamaha WR250F
2019 Yamaha YZ250FX
2020 Suzuki RM-Z250
2021 Suzuki RM-Z250
2022 Suzuki RM-Z250