Namura Standard Bore Piston Kit Size B for Polaris Sportsman 450 2017-2025 93mm

Namura Standard Bore Piston Kit Size B for Polaris Sportsman 450

This Namura standard bore piston kit in Size B is designed for Polaris Sportsman 450 models from 2017 to 2025, offering a 93mm bore replacement for engine rebuilding.

Overview

The Namura standard bore piston kit Size B provides a high-quality replacement piston and rings for Polaris Sportsman 450 engines built between 2017 and 2025. With a 93mm bore diameter and standard compression ratio, this piston kit restores engine performance and reliability for ATV use.

Built For Performance

• Standard bore size B with 93mm diameter matches OEM specifications
• High-strength aluminum alloy construction for lightweight durability
• Precision-machined piston skirt for reduced friction
• Includes piston rings, wrist pin, and circlips for a complete kit
• Designed for direct replacement without machining required

Fits These Machines

• for Polaris Sportsman 450 (2017-2025)

On-The-Job Use

• Engine rebuilding and top-end overhaul
• Trail riding and recreational ATV use
• Farm, ranch, and utility applications
• Restoring lost compression and power

Specs At A Glance

Good To Know

Q: Do I need to rebore the cylinder for this piston? A: No, this standard bore piston kit is designed to fit a factory bore cylinder; only honing is typically required for proper ring seating.

Q: Does the kit include everything needed for installation? A: Yes, it includes the piston, rings, wrist pin, and circlips; you will need gaskets and oil separately.

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