This product has been discontinued

Vertex Top End Piston Kit - VTK22951B


  • Manufacturer: Vertex



Vertex Top End Piston Kit

  • All pistons are heat treated with a T-5 hardening and tempering cycle
  • All piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston life
  • Cast piston kits are gravity cast aluminum alloy (not forged) with 18% silicone content, which produces an extremely light but very strong piston
  • Forged pistons are forged from 2618 aluminum for superior strength and durability
  • Forged High Compression pistons improve power and torque across entire rpm range
  • Big Bore pistons increase engines displacement, torque, and peak horsepower
  • Forged Replica pistons are forged OE replacements
  • Replica pistons and all rings are OEM replacements
  • Top end piston kit includes piston, rings, pins, circlips, top end gaskets, and wrist pin bearing when applicable
  • Replacement two-stroke piston rings sold individually; four-stroke piston rings sold as a set

Technical Specifications:
  • Compression Ratio (x:y):11.3:1
  • Cylinder Diameter (mm):90.00
  • Displacement (cc):400.00
  • Piston Diameter (mm):89.97
  • SizeOverStandard:

Fits: 2003 - 2004 Kawasaki KLX 400, 2000 - 2009 Suzuki DRZ 400, 2005 - 2009 Suzuki DRZ 400SM

Two Stroke Piston Installation

Four Stroke Piston Installation

Manufacturer Part Number: VTK22951B