The WISECO Piston Kit in 52.50 mm size is designed for select Yamaha YZ80 and YZ85 applications. Manufacturer part number 767M05250. Distributor part number 09100366.
Each piston features an electra-coated dome, ring groove, and pin bore to support wear resistance and protection from micro-welding, galling, and detonation. GP Series design generally uses less machining on the outside to help seal the bore and increase compression.
ArmorGlide® skirt coating is designed to reduce friction and noise for increased horsepower potential. The kit includes the piston, ring(s), wrist pin, and circlips. The piston is engineered, forged, and machined in the USA.
Vehicle fitment: 1995, 1996, and 1997 Yamaha YZ80; 2005, 2006, 2007, 2011, 2016, 2018, and 2021 Yamaha YZ85.
Features:
- Product type: Piston kit
- Brand: WISECO
- Size: 52.50 mm
- Manufacturer part number: 767M05250
- Distributor part number: 09100366
- Coating: Electra-coated dome, ring groove, and pin bore
- Skirt coating: ArmorGlide®
- Kit contents: Piston, ring(s), wrist pin, and circlips
- Manufacturing: Engineered, forged, and machined in the USA
- Fitment: Select 1995–1997 Yamaha YZ80 and 2005–2021 Yamaha YZ85 applications
Fitment:
1993 Yamaha YZ80
1994 Yamaha YZ80
1995 Yamaha YZ80
1996 Yamaha YZ80
1997 Yamaha YZ80
1998 Yamaha YZ80
1999 Yamaha YZ80
2000 Yamaha YZ80
2001 Yamaha YZ80
2002 Yamaha YZ85
2003 Yamaha YZ85
2004 Yamaha YZ85
2005 Yamaha YZ85
2006 Yamaha YZ85
2007 Yamaha YZ85
2008 Yamaha YZ85
2009 Yamaha YZ85
2010 Yamaha YZ85
2011 Yamaha YZ85
2012 Yamaha YZ85
2013 Yamaha YZ85
2014 Yamaha YZ85
2015 Yamaha YZ85
2016 Yamaha YZ85
2017 Yamaha YZ85
2018 Yamaha YZ85
2019 Yamaha YZ85
2020 Yamaha YZ85
2021 Yamaha YZ85
2022 Yamaha YZ85
2023 Yamaha YZ85
2024 Yamaha YZ85
2025 Yamaha YZ85
2026 Yamaha YZ85