Product Description
Selkirk Engine Armor for Husqvarna 2017-2022, Acerbis 3.1 fuel tank
Snow packs into an exposed dirt bike engine, ices up the cases and pulls heat out of the motor. Selkirk Engine Armor encloses the engine in a complete, integrated system built specifically for snowbikes, so the engine holds temperature and stays clear of snow and ice in deep powder.
Made to order: allow at least 7 days lead time.
Acerbis 3.1 tank not included in the basic package.
What's included
- Engine Armor kit that fits the Acerbis 3.1 fuel tank
- Skid plate and mounts
- Snow shield
- 2-piece side panels
- 2 quick-release access side panels
- Radiator cover
- Quick-release powder panel
- Rear engine case protection panel
- Heat exchanger
- Bypass plumbing with 3/8" hose and fittings for Thermo-Bob installation
Exhaust compatibility
- Fits the FMF pipe
- Does not fit the Akrapovič pipe
What you also need
A thermostat and a temperature gauge. Our plumbing is designed to work best with the Thermo-Bob thermostat; other thermostats require custom plumbing. For a gauge, see the Trail Tech TTO temperature gauge.
Complete the system
- Engine Armor Hose Upgrade Kit for your year: 2013-2016 | 2017-2018 | 2019+ ($39.99). Recommended for any GasGas, KTM or Husqvarna with a stock thermostat, or any bike that is not a dedicated snowbike. You keep your stock hoses for converting back to dirt.
- Engine Armor SuperMoto Fender with Bracket: trimmed to fit the Engine Armor.
- Enclosed Airbox and Velocity Stack Intake: the intake, airbox and Engine Armor work together to hold temperature, block snow and ice, and keep the oil clean and free of moisture.
- Coolant Heated Handlebars
How the heat exchanger works
The heat exchanger does not overcool the engine. It is not a snowmobile tunnel cooler; the whole system is snowbike specific.
- It keeps heat in the engine enclosure in deep snow. On KTM/Husqvarna it sits in the bottom of the skid plate; on Yamaha/Honda it sits in the front of the snow shield.
- It moves heat into the aluminum skid and shield, melting snow out and stopping ice build-up, and keeps the engine cases warm.
- It adds a little coolant capacity, which helps keep temperatures stable.
- You do not need to block off your radiators. Keeping heat in the engine lets the radiators and thermostat work the way they were designed.
Riding in different conditions
Install the removable powder panel to block the radiator shield on cold, dry, deep powder days. Remove it for hardpack, road and spring riding. On very warm spring days (above 45°F) without a fan, you can also remove the upper panels, but we run fully enclosed with all side panels all season.
The exhaust is enclosed too. With the right balance of enclosure and venting, frozen snowbike engines are a non-issue, with no wraps, blankets or blocked radiators needed.
