3 Namura Standard Bore Piston Kits for Polaris SLX780, SL780 & SLT780 71.3mm

3 Namura Standard Bore Piston Kits for Polaris

This set of three standard bore piston kits provides replacement pistons for Polaris SLX780, SL780, and SLT780 personal watercraft, featuring a 71.3mm bore size.

Overview

Each piston kit from Namura includes a cast piston, rings, wrist pin, and circlips to restore engine performance for Polaris three-cylinder powerheads. These standard bore piston kits replace worn components in your Polaris watercraft engine, delivering reliable compression and smooth operation. Designed as a direct fit for SLX780, SL780, and SLT780 models, this piston kit set ensures proper clearance and longevity.

Built For Performance

• Standard bore size of 71.3mm for OEM replacement accuracy
• Cast aluminum piston with robust ring groove design
• Includes premium piston rings for consistent sealing
• Heat-treated wrist pin and clips for secure assembly
• Kit contains three complete pistons for all cylinders

Fits These Machines

• for Polaris SLX780
• for Polaris SL780
• for Polaris SLT780

On-The-Job Use

• Rebuilding Polaris personal watercraft engines
• Replacing worn pistons during top-end overhaul
• Restoring compression on three-cylinder watercraft
• Maintaining performance for recreational lake riding

Specs At A Glance

Good To Know

Q: What is included in each piston kit? A: Each kit contains one piston, ring set, wrist pin, and circlips; you receive three kits total for a complete engine set.

Q: Are these pistons compatible with aftermarket cylinders? A: These are standard bore size, so they are intended for stock bore cylinders; confirm your cylinder bore is within spec before installation.

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