Vertex VTK23637B Race GP Style Top End Piston Kit - Standard Bore 48.45mm, Standard Compression engine-crankcase-components-breathers 2011-2020 Polaris 800 SwitchBack Assault

2011-2020 Polaris 800 SwitchBack Assault 144

2001-2021 Yamaha YZ250F

2017-2018 Can-Am Outlander Max 570 XT

Piped seam construction for durability and additional wear resistance

2012-2016 KTM 250 XCF-W

Vertex VTK23637B Race GP Style Top End Piston Kit - Standard Bore 48.45mm, Standard Compression engine-crankcase-components-breathers 2011-2020 Polaris 800 SwitchBack AssaultBore: 48. 45mm Compression: Standard Compression Sizing: Standard Bore Single Compression Ring. All piston skirts are coated with a high tech Molybdenum Disulfide coating for faster break in time and increased piston life. All pistons are heat treated with a T 5 hardening and tempering cycle. All rings are OEM replacements. Top end piston kit includes piston, rings, pins, circlips, top end gaskets, and wrist pin bearing or cam chain where applicable.