2 Namura .030 Over Bore Piston Kits for Yamaha Banshee 350 for 1987-2006 64.75mm

2 Namura .030 Over Bore Piston Kits for Yamaha Banshee 350 (1987-2006)

These two Namura .030 over bore piston kits are designed for the Yamaha Banshee 350, providing a direct replacement for the 64.75mm bore size to restore compression and power after cylinder work.

Overview

Each piston kit includes a high-quality cast piston, rings, wrist pin, and circlips, engineered for the Yamaha Banshee 350 engine. The .030 oversize allows for cylinder boring to remove wear, making these piston kits an essential part of a top-end rebuild for 1987-2006 models.

Built For Performance

• Precision-machined from high-silicon aluminum alloy for strength and heat resistance
• Includes proper ring end gap for .030 over bore
• Moly-coated skirt reduces friction and scuffing
• Each kit contains one piston, rings, pin, and circlips
• Designed to match OEM specifications for reliable fit

Fits These Machines

• for Yamaha Banshee 350 (YFZ350) 1987-2006

On-The-Job Use

• Ideal for rebuilding the top end after cylinder boring
• Commonly used in racing and high-performance ATV applications
• Restores compression lost from worn piston and rings

Specs At A Glance

Good To Know

Q: Do these pistons work with stock cylinders? A: They are intended for cylinders bored .030 over standard; you must have your cylinder bored and honed to match the 64.75mm piston diameter.

Q: Are the piston rings included? A: Yes, each kit includes all necessary rings, wrist pin, and circlips for a complete piston installation.

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