The Namura NA-50012 Piston Kit is a standard-bore replacement piston assembly designed for select Polaris 850 engines. This kit is intended for riders and technicians restoring reliable engine performance in compatible Polaris Sportsman, Sportsman SP, Sportsman Touring SP, and Scrambler applications from 2015 through 2017.
Built for a standard bore piston size of 86.93 mm, the Namura NA-50012 is manufactured for precise fit and dependable service when replacing a worn or damaged piston. Verify the existing cylinder condition, engine specifications, and service requirements before installation. This piston kit will not accept OEM piston rings, and the included or compatible Namura rings will not work with an OEM piston; the piston and ring set must be matched correctly.
Fitment includes the 2015–2017 Polaris Sportsman 850, 2015–2017 Polaris Sportsman 850 SP, 2015–2017 Polaris Sportsman Touring 850 SP, and the 2015 Polaris Scrambler 850. Always confirm model year and engine compatibility before ordering. The manufacturer part number is NA-50012, and the vendor part number is NA-50012.
Features:
- Brand: Namura
- Manufacturer: Namura
- Manufacturer Part Number: NA-50012
- Vendor Part Number: NA-50012
- Piston Size: 86.93 mm standard bore
- Product Type: Replacement piston kit
- Fitment: 2015–2017 Polaris Sportsman 850
- Fitment: 2015–2017 Polaris Sportsman 850 SP
- Fitment: 2015–2017 Polaris Sportsman Touring 850 SP
- Fitment: 2015 Polaris Scrambler 850
- Compatibility: Does not accept OEM piston rings and is not compatible with an OEM piston
Fitment:
2009 Polaris Sportsman XP 850
2009 Polaris Sportsman XP 850 EPS
2010 Polaris Sportsman Touring 850 EPS
2010 Polaris Sportsman XP 850
2010 Polaris Sportsman XP 850 EPS
2011 Polaris Sportsman Touring 850 EPS
2011 Polaris Sportsman X2 850
2011 Polaris Sportsman XP 850
2011 Polaris Sportsman XP 850 EPS
2012 Polaris Sportsman Touring 850 EPS
2012 Polaris Sportsman XP 850
2012 Polaris Sportsman XP 850 EPS
2013 Polaris Scrambler XP 850
2013 Polaris Scrambler XP 850 EPS
2013 Polaris Sportsman Touring 850 EPS
2013 Polaris Sportsman XP 850
2013 Polaris Sportsman XP 850 EPS
2014 Polaris Scrambler XP 850
2014 Polaris Scrambler XP 850 EPS
2014 Polaris Sportsman 850 HO Wv
2014 Polaris Sportsman Touring 850 EPS
2014 Polaris Sportsman XP 850 EPS
2015 Polaris Scrambler 850
2015 Polaris Sportsman 850
2015 Polaris Sportsman 850 SP
2015 Polaris Sportsman Touring 850 SP
2016 Polaris Scrambler 850
2016 Polaris Sportsman 850
2016 Polaris Sportsman 850 SP
2016 Polaris Sportsman Touring 850 SP
2017 Polaris Scrambler 850
2017 Polaris Sportsman 850
2017 Polaris Sportsman 850 SP
2017 Polaris Sportsman Touring 850 SP
2018 Polaris Scrambler 850
2018 Polaris Sportsman 850
2018 Polaris Sportsman 850 SP
2018 Polaris Sportsman Touring 850 SP
2019 Polaris Scrambler 850
2019 Polaris Sportsman 850
2019 Polaris Sportsman 850 SP
2019 Polaris Sportsman Touring 850 SP
2020 Polaris Sportsman 850
2020 Polaris Sportsman Touring 850 EPS