Namura Standard Bore Size A Piston Kit for Suzuki LT-Z400 Quadsport 400 90mm

Standard Bore Size A Piston Kit for Suzuki LT-Z400 Quadsport 400

This piston kit provides a 90mm standard bore replacement piston for the Suzuki LT-Z400 Quadsport 400, including rings and wrist pin for a complete top-end refresh. Designed for direct installation, this kit restores compression and performance in your four-stroke ATV engine.

Overview

This standard bore piston kit is a direct-fit replacement for the Suzuki LT-Z400 Quadsport 400, using a 90mm piston diameter to match the original bore. It is ideal for ATV owners performing a top-end rebuild or refreshing the piston assembly after hours of recreational or competitive use.

Built For Performance

• Includes a forged or cast piston (as per OEM spec) for reliable power delivery
• Precision-machined ring set ensures proper sealing and oil control
• Wrist pin and circlips included for easy assembly
• 90mm standard bore eliminates cylinder boring requirements
• Designed to meet or exceed OEM tolerances for durability

Fits These Machines

• for Suzuki LT-Z400 Quadsport 400 (all years using 90mm standard bore)

On-The-Job Use

• Recreational trail riding
• ATV racing and sport riding
• Engine rebuild after high-hour usage
• Maintenance for competitive desert or motocross events

Specs At A Glance

Good To Know

Q: Does this kit include the cylinder head gasket? A: No, this piston kit includes only the piston, rings, and wrist pin; separate gasket sets are required for a complete top-end rebuild.

Q: Is this piston compatible with a bored cylinder? A: No, it is sized for a standard 90mm bore; an oversize piston must be used if the cylinder has been bored.

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