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Top End Service Kit, Stainless Conv., 0.440" Lift, Suzuki®, LT-Z™/ D-RZ™ 400, 2000-2019

Top End Service Kit, Stainless Conv., 0.440" Lift, Suzuki®, LT-Z™/ D-RZ™ 400, 2000-2019


Regular price $660.02 USD
Regular price $660.02 USD Sale price $660.02 USD
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California Prop 65

Suzuki® LT-Z 400 2003-2018
Suzuki® D-RZ 400E/ S/ SM 2000-2019

Kit Includes:

  • Piston, Rings, Clips and Pin – (2618 Alloy Fully CNC Machined Race Piston)
  • Complete Top End Gasket Kit by Cometic™
  • KPMI® S.S. White Diamond® Valves, Stock Head Dia. (All Valves)
  • Complete Dual Spring / High Performance Titanium Retainer Spring Kit


  • Complete piston assembly, gasket kit and valves to rebuild or service your bikes top end
  • Cost saving built into purchasing these components as a kit
  • Designed specifically for the performance demands of MX Bikes and Quads
  • Pistons designed to maintain stock compression
  • 2618 Alloy Fully CNC Machined Piston with performance skirt coating
  • KPMI® High Performance Valvetrain is known to outlast OEM by twice the service life
  • Lightweight Racing Spring Kit compatible with high performance cams

IMPORTANT NOTE: The piston assembly (piston, rings, pin and pin clips) in this kit are designed to work together as a system. When used complete, the piston assembly can be used as an OEM replacement. The individual components are NOT INTERCHANGEABLE with O.E.M. piston assembly components.

Installation Instructions Click Here
Piston Bore Size 92.00mm
Type Intake/ Exhaust
Retainer Material Titanium 
Valve Lift 0.440"
Installed Height 1.205"
Seat Pressure 57#
Open Pressure 171#
Intake @ Lift 0.440"
Valve Type  Intake/ Exhaust
Valve Material White Diamond® Stainless
Coating Hard Chrome
Intake Head Diameter 36.00mm/ 1.418"
Intake Stem Diameter 5.0mm/ 0.1960"
Intake Tulip 20º
Intake Overall Length 3.245"
Exhaust Head Diameter 29.00mm/ 1.142"
Exhaust Stem Diameter 5.0mm/ 0.1953"
Exhaust Tulip 17º
Exhaust Overall Length 3.210"
Remarks Standard
Unique Identifier No. FR327789_01GAUSt
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