Air Box Filter Foam Seal for Polaris RMK Assault 800 2015-2019 Snowmobile

Air Box Filter/Foam Seal for Polaris RMK Assault 800

This air box filter and foam seal assembly protects the intake tract on select 2015-2019 Polaris RMK Assault 800 snowmobiles, keeping snow, belt dust, and debris out of the engine while the foam seal closes the gap between the air box halves.

Overview

This air box filter and foam seal is built to service the intake system on the Polaris RMK Assault 800 mountain sled. The filter element traps fine particles before they reach the engine, and the foam seal presses into the air box to keep unfiltered air from bypassing the element. It is a practical replacement for riders maintaining a 2015-2019 Polaris RMK Assault 800 or refreshing a worn seal during preseason service.

Built For Performance

• Foam filter media captures fine snow dust and belt debris before it reaches the throttle bodies
• Sealing foam is shaped to match the air box mating surface for a snug, rattle-free fit
• Filter and seal work together to keep the intake tract sealed under deep snow and high RPM use
• Serviceable design allows cleaning and reoiling to extend replacement intervals
• Direct-fit shape for the Polaris RMK Assault 800 air box, with no trimming required

Fits These Machines

• for Polaris RMK Assault 800, 2015
• for Polaris RMK Assault 800, 2016
• for Polaris RMK Assault 800, 2017
• for Polaris RMK Assault 800, 2018
• for Polaris RMK Assault 800, 2019

On-The-Job Use

• Deep powder riding where snow ingestion can choke the intake
• Spring riding on wet, heavy snow that carries grit into the air box
• Preseason maintenance and intake refreshes
• Trailered sleds that sit between rides and need a sealed intake

Specs At A Glance

Good To Know

Q: How often should the filter be cleaned? A: Inspect it after every few deep powder rides and clean it once it shows visible grime or gets packed with snow dust. A quick cleaning keeps airflow consistent and protects the engine.

Q: Does this fit every 2015-2019 Polaris RMK Assault 800? A: It is intended for those model years, but Polaris made running changes across the production span, so verifying your machine's serial number and air box layout before ordering is a good habit.

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