SuperATV Cab Heater for Can-Am Defender HD8 | Engine-Powered UTV Cab Heater

SuperATV Cab Heater for Can-Am Defender HD8 — Stay Warm All Winter

The SuperATV Cab Heater for Can-Am Defender HD8 is the ultimate cold-weather upgrade for your UTV. It draws engine heat directly from your coolant lines — just like a car heater — to deliver powerful, consistent warmth to your cab. No propane, no batteries, no compromises.

What's Included

• Heater control box (10" x 4.5" x 11.75") — mounts under your dash
• High-grade radiator hoses rated -40°F to 285°F
• Defrost hose and vent for windshield defogging
• All installation hardware, drill bits, and Defender-specific mounting plates
• Full installation instructions

Key Features

• Adjustable temperature and fan speeds
• 360° adjustable vents
• 3.4 amps at 13.7 volts
• Capable of 14,600 BTU at 135 CFM
• Built-in shutoff valve
• Defrosts your windshield
• Optional second-row (rear seat) heater available

Upgrade Options

Quick-Start Flow Valve: Gets you heated air twice as fast by diverting coolant to your heater core at low engine temps. Ideal for cold-start rides.

Grille Cover: Blocks frigid air flowing over your radiator, increasing coolant temps so your heater warms up faster. Made with PVC-backed polyester. For use in temperatures below freezing only — do not use above 32°F or engine overheating may occur.

Windshield Defrost

Included defrost vents and hoses route through your dash for a factory-clean look. Keeps your windshield clear of snow, ice, and fog while you ride.

Second-Row / Rear Seat Heater

Don't leave your back-row passengers in the cold. Add a second-row heater that mounts in front of the middle seat with its own adjustable temperature and fan settings. Note: Second-row heater may limit space for the center-rear passenger.

Compatible Fitment — Can-Am Defender HD8 (No Factory HVAC)

• Defender HD8 DPS: 2016–2021
• Defender HD8 XT: 2016–2021
• Defender HD8 XT Cab: 2016–2021
• Defender MAX HD8 DPS: 2017–2021
• Defender MAX HD8 XT: 2017–2021
• Defender MAX HD8 XT Cab: 2017–2021

Installation Notes

• Drilling through plastic required — all necessary drill bits included
• Defender-specific mounting plates included for straightforward install

Installation Instructions

• Front Heater Installation Instructions (PDF)
• Max Model Heater Installation Instructions (PDF)
• Flow Valve Installation Instructions (PDF)

Frequently Asked Questions

Does this heater work without a factory HVAC system?
Yes — this heater is specifically designed for Can-Am Defender HD8 models that do not have a factory HVAC system. It taps into your existing coolant lines.

How does the SuperATV Cab Heater work?
It circulates engine coolant through a heater core inside the cab unit, then blows warm air through adjustable vents — the same principle as a car's heater.

What is the Quick-Start Flow Valve?
The optional flow valve diverts coolant to the heater core at low engine temperatures, so you get warm air significantly faster on cold starts.

Can I add a rear heater later?
Yes. The second-row heater is available as an add-on option and installs in front of the middle rear seat.

Is drilling required for installation?
Yes, drilling through plastic is required. All necessary drill bits and mounting hardware are included in the kit.

What temperature range can the hoses handle?
The high-grade radiator hoses are rated from -40°F to 285°F, covering extreme cold and high engine heat.