Namura Standard Bore Piston Kit for Polaris Sportsman 550 fits 2009-2014 96.6mm

Standard Bore Piston Kit for Polaris Sportsman 550

This aftermarket standard bore piston kit is designed to restore compression and power in Polaris Sportsman 550 ATV engines, featuring a 96.6mm bore size for 2009-2014 models.

Overview

The Namura Standard Bore Piston Kit provides a direct replacement for worn pistons in Polaris Sportsman 550 ATVs, restoring engine performance and reliability. This 96.6mm piston kit is engineered for 2009-2014 Polaris Sportsman 550 platforms, delivering consistent power output and smooth operation.

Built For Performance

• Precision-machined 96.6mm bore diameter ensures proper fit and compression
• High-strength aluminum alloy construction for durability and heat resistance
• Includes piston, rings, and wrist pin for a complete rebuild
• Manufactured to OEM specifications for reliable performance
• Designed for use with standard bore cylinders without oversizing

Fits These Machines

• for Polaris Sportsman 550 (2009-2014)

On-The-Job Use

• Restores compression and power in utility ATV engines
• Ideal for trail riding, farm work, and recreational use
• Commonly used during engine rebuilds or top-end overhauls
• Suitable for both stock and mild performance applications

Specs At A Glance

Good To Know

Q: Will this piston kit fit my Polaris Sportsman 550? A: This kit is designed for 2009-2014 Polaris Sportsman 550 ATV engines with 96.6mm standard bore cylinders. Always verify your engine’s serial number before ordering.

Q: Do I need any additional parts? A: You may need new gaskets and seals; we recommend replacing the cylinder head gasket and base gasket during installation for a proper seal.

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