Vertex 22951A Forged Replica Piston Kit - Standard Bore 89.96mm, 11.3:1 Compression

Bore: 89.96mm
Compression: 11.3:1 Compression
Sizing: Standard Bore

Compression Ratio: 11.3:1.
Cylinder Diameter: 90 mm.
Displacement: 400 cc.
Piston Diameter: 89.960mm.

All piston skirts are coated with a hi-tech Molybdenum Disulphite coating for faster break-in time and increased piston life. Cast Replica piston kits are gravity cast aluminum alloy (not forged) with 18% silicone content, which produces an extremely light but very strong piston. Forged Replica pistons are forged from 2618 aluminum for superior strength and durability. Forged High Compression pistons improve power and torque across entire rpm range. Forged Big Bore pistons increase engine's displacement, torque, and peak horsepower. Forged Replica pistons are forged OE replacements. All pistons are heat treated with a T-5 hardening and tempering cycle. Replica pistons and all rings are OEM replacements. Kits include piston, rings, wrist pin and circlips. Two stroke replacement rings are sold individually (Example if your piston has two rings you will want to order two rings). Four-stroke piston rings sold as a set. Forged Replica pistons - Forged replacement for a OE cast piston for better strength. Forged Replica - Forged OE stock compression piston.

Vehicle Fitment:

2004-2008 Arctic Cat DVX 400
2006-2007 Arctic Cat DVX 400 TS
2003-2006 Kawasaki KFX400
2003 Kawasaki KLX400R
2003 Kawasaki KLX400SR
2000-2004 Suzuki DR-Z400
2000-2007 Suzuki DR-Z400E
2000-2009 Suzuki DR-Z400S
2011-2022 Suzuki DR-Z400S
2005-2009 Suzuki DR-Z400SM
2013-2022 Suzuki DR-Z400SM
2003-2009 Suzuki LT-Z400 QuadSport Z
2012-2014 Suzuki LT-Z400 QuadSport Z
2012 Suzuki LT-Z400 QuadSport Z LE