Restore top-end performance with the NAMURA NA-10012-2K Top End Kit, designed for select Honda 700cc powersports applications. This kit features a 102.47 mm oversized piston with an 11:1 compression ratio and includes the key components needed for a reliable top-end rebuild: piston, piston rings, wrist pin, retaining clips, top-end bearing, and gasket kit. The piston is engineered for dependable operation in high-temperature and high-load environments.
The piston uses NAMURA’s hypereutectic casting process to provide increased silicon content, controlled expansion, and improved wear resistance. Its MOS2, or Teflon/molybdenum, coated skirts are applied using a rolled-on process for a strong bond that helps reduce friction, improve heat transfer, and minimize the risk of cold seizures. Machined smooth heads help reflect combustion heat and reduce carbon buildup, while the anodized dome improves heat resistance and durability.
This NAMURA top-end kit is designed to fit select Honda models, including the 2014–2016 Honda SXS700M2 Pioneer 700, 2010–2013 Honda MUV700 Big Red, and 2006–2008 Honda TRX680FA Rincon with independent rear suspension. Verify the vehicle model, year, bore requirement, and engine specifications before installation to ensure proper fitment. Manufacturer part number NA-10012-2K and vendor part number 186-10122 identify this complete replacement kit.
Features:
- Complete top-end kit includes piston, rings, wrist pin, retaining clips, top-end bearing, and gasket kit
- 102.47 mm oversized piston designed for select Honda 700cc applications
- 11:1 compression ratio supports dependable performance and efficient combustion
- MOS2 Teflon/molybdenum-coated skirts help 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 increases heat resistance and durability
- Hypereutectic casting process provides controlled expansion and improved wear resistance
- Fits select 2014–2016 Honda SXS700M2 Pioneer 700 models
- Fits select 2010–2013 Honda MUV700 Big Red models
- Fits select 2006–2008 Honda TRX680FA Rincon models with independent rear suspension
- Brand: NAMURA
- Manufacturer part number: NA-10012-2K
- Vendor part number: 186-10122
Fitment:
2006 Honda TRX680FA Rincon [IRS]
2007 Honda TRX680FA Rincon [IRS]
2008 Honda TRX680FA Rincon [IRS]
2009 Honda TRX680FA Rincon [IRS]
2010 Honda Muv700 Big Red
2010 Honda TRX680FA Rincon [IRS]
2011 Honda Muv700 Big Red
2011 Honda TRX680FA Rincon [IRS]
2012 Honda Muv700 Big Red
2012 Honda TRX680FA Rincon [IRS]
2013 Honda Muv700 Big Red
2013 Honda TRX680FA Rincon [IRS]
2014 Honda SXS700M2 Pioneer 700
2014 Honda TRX680FA Rincon [IRS]
2015 Honda SXS700M2 Pioneer 700
2015 Honda TRX680FA Rincon [IRS]
2016 Honda SXS700M2 Pioneer 700
2016 Honda TRX680FA Rincon [IRS]
2017 Honda SXS700M2 Pioneer 700
2017 Honda TRX680FA Rincon [IRS]
2018 Honda SXS700M2 Pioneer 700
2019 Honda SXS700M2 Pioneer 700
2020 Honda SXS700M2 Pioneer 700
2021 Honda SXS700M2 Pioneer 700
2022 Honda SXS700M2 Pioneer 700
2023 Honda SXS700M2 Pioneer 700
2023 Honda TRX680FA Rincon [IRS]