Namura Standard Bore Size A Top End Kit for Polaris Sportsman 450 2017-2025 93mm

Namura Standard Bore Size A Top End Kit for Polaris Sportsman 450

This Namura standard bore size A top end kit is designed for Polaris Sportsman 450 ATV models from 2017 to 2025, providing essential components for a top-end rebuild.

Overview

This top end kit includes a piston, rings, wrist pin, and gaskets for the Polaris Sportsman 450, ensuring a reliable engine overhaul. The kit is sized as standard bore A with a 93mm piston diameter, maintaining original specifications. It is an ideal choice for restoring performance in your Polaris ATV.

Built For Performance

• Standard bore size A piston for factory-spec compression
• High-quality piston rings for efficient sealing
• Includes wrist pin and circlips for secure installation
• Complete gasket set for a dependable seal
• Manufactured to Namura's precision standards

Fits These Machines

• for Polaris Sportsman 450 2017
• for Polaris Sportsman 450 2018
• for Polaris Sportsman 450 2019
• for Polaris Sportsman 450 2020
• for Polaris Sportsman 450 2021
• for Polaris Sportsman 450 2022
• for Polaris Sportsman 450 2023
• for Polaris Sportsman 450 2024
• for Polaris Sportsman 450 2025

On-The-Job Use

• Engine top-end rebuilds for utility ATV use
• Restoring compression in high-mileage Sportsman 450 engines
• Replacing worn piston and rings during routine maintenance

Specs At A Glance

Good To Know

Q: Does this kit include a cylinder? A: No, this is a top end kit that includes piston, rings, wrist pin, and gaskets; the cylinder must be reused or replaced separately.

Q: What is the difference between size A and other sizes? A: Size A is a standard bore piston grade; always confirm your cylinder's condition and select the appropriate size for proper clearance.

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