Namura .040 Over Bore Piston Kit for Suzuki DR-Z400 fits 2000-2024 models 91mm

Namura .040 Over Bore Piston Kit for Suzuki DR-Z400

This is a high-performance .040 over bore piston kit designed to restore compression and power in Suzuki DR-Z400 engines, featuring a 91mm bore size for 2000-2024 models.

Overview

This Namura .040 over bore piston kit replaces worn OEM pistons in Suzuki DR-Z400 motorcycles, providing a reliable upgrade for increased displacement and compression. It is engineered for enthusiasts seeking to refresh or enhance engine performance in their 2000-2024 DR-Z400 models.

Built For Performance

• Constructed from high-strength aluminum alloy for durability and reduced weight
• Precision-machined to .040 over bore specification for exact fit
• Includes piston rings and wrist pin for complete installation
• Designed to withstand high RPM and thermal stress
• Direct replacement for standard OEM piston without modification

Fits These Machines

• for Suzuki DR-Z400 (2000-2024)

On-The-Job Use

• Off-road trail riding and enduro competition
• Motocross racing and track days
• Engine rebuilds and performance restoration
• Dual-sport adventure riding

Specs At A Glance

Good To Know

Q: Will this piston kit work with stock cylinder? A: Yes, the .040 over bore requires honing or boring the cylinder to match the oversized piston, but it is a direct fit after machining.

Q: Does this kit include a circlip or clip? A: The wrist pin is included but circlips are not; please reuse your original circlips or purchase new ones separately.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.