Namura .040 Over Bore Piston Kit for Suzuki LT-Z400 Quadsport 400 91mm

.040 Over Bore Piston Kit for Suzuki

This 91mm piston kit is designed for a .040 over bore in the Suzuki LT-Z400 Quadsport 400 engine, providing increased displacement and compression for improved power.

Overview

The Namura .040 Over Bore Piston Kit for Suzuki LT-Z400 Quadsport 400 offers a 91mm piston for a precise .040 over bore. It replaces the stock piston to restore or enhance engine performance. This kit is ideal for rebuilding or upgrading your Suzuki ATV engine.

Built For Performance

• High-strength aluminum alloy for durability
• Precision-machined to exact specifications
• Includes piston rings, wrist pin, and circlips
• Designed for .040 over bore clearance
• Improves compression and horsepower
• Tested for reliability in high-performance applications

Fits These Machines

• for Suzuki LT-Z400 Quadsport 400

On-The-Job Use

• Rebuilding a worn-out engine for recreational riding
• Increasing engine displacement for racing
• Replacing damaged piston during top-end overhaul
• Restoring compression in high-mileage ATVs

Specs At A Glance

Good To Know

Q: Is this piston kit compatible with standard bore? A: No, this is specifically for a .040 over bore; if your cylinder is not at that size, you will need to bore it to match.

Q: Does it include all necessary components? A: Yes, the kit includes piston, rings, wrist pin, and circlips for a complete top-end rebuild.

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