Namura Standard Bore Piston Rings for Polaris ProStar S4 Snow 2023-2024 - 93mm

Standard Bore Piston Rings for Polaris

These standard bore piston rings for Polaris provide a reliable seal for 93mm pistons in ProStar S4 snowmobile engines.

Overview

The standard bore piston rings for Polaris maintain compression and minimize oil consumption during engine operation. These standard bore piston rings for Polaris are engineered for high speed applications where thermal stability is critical. They are ideal for mechanics rebuilding the top end of their engine.

Built For Performance

• Chrome plated for reduced friction
• Precision tension for compression seal
• Compatible with 93mm bores
• High wear resistance

Fits These Machines

• for Polaris ProStar S4 2023-2024

On-The-Job Use

• Restoring compression in worn cylinders
• Reducing oil blow-by during operation
• Standard rebuild requirements

Specs At A Glance

Good To Know

Q: How do I check end gap? A: Insert the ring into the cylinder bore and use a feeler gauge to measure the gap between the ring ends.

Q: Do these require a break-in period? A: Yes, following a structured break-in process allows the rings to properly seat against the cylinder wall.

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