The mid-size Ranger is a favorite for acreage owners, and a lot of them get used most in the cold months. The Firestorm HT_CU_403 is laid out for the mid-size Ranger 500 and 570 dash, with brackets and hose lengths that give it a factory finish. It turns engine coolant into up to 18,000 BTU of cab heat and has two vents dedicated to defrost.
Mid-Size Ranger Highlights
- Made for the narrower mid-size Ranger 500 and 570, not the full-size chassis.
- Heat exchanger rated up to 18,000 BTU, sized for the mid-size cab.
- Two defrost vents plus separate driver and passenger vents.
- Temperature and fan speed adjust from the cab.
Mid-Size Ranger Tips
- Mid-size and full-size Rangers use different heater kits. Check your model before ordering.
- A closed cab makes a big difference on a smaller engine.
- In summer, close the built-in valve so hot coolant stays out from under the mid-size dash.
Firestorm Heater Specifications
- Heat output: up to 18,000 BTU from the engine coolant, with airflow from 0 to 125 CFM
- Adjustable temperature and fan speed, with 360-degree adjustable vents
- Dedicated driver and passenger vents, plus two defrost vents aimed at the windshield
- Built-in shutoff valve to close off coolant flow in warm weather
- Automotive-grade radiator hose rated from -40 to 120 degrees C
- High-performance alloy radiator Y connectors
- No visible heater core, for a factory-installed look
Fitment
| Year | Make | Model |
|---|---|---|
| 2017-2022 | Polaris | Ranger Mid-Size 500 |
| 2017-2022 | Polaris | Ranger Mid-Size 570 |
Note: Moto Alliance's title lists 2015-2022, but the fitment list says 2017-2022. We list 2017-2022. Ask us about a 2015 or 2016.
What's in the Box
- Firestorm heater unit with fan, temperature and fan-speed controls
- Driver, passenger and two defrost vents
- Brackets and hose lengths made for the Polaris Ranger Mid-Size
- Automotive-grade radiator hose and alloy radiator Y connectors
- Built-in coolant shutoff valve
- All installation hardware and instructions
Who It's For and What Pairs Well
This kit is for mid-size Ranger owners doing chores, hunting or trail riding when it is cold. Pair it with a Ranger windshield and roof, and browse Ranger interior accessories to finish the cab.
Installation Notes
The heater installs with the included mid-size brackets and ties into the cooling system with automotive-grade hose and alloy Y connectors. Follow the HT_CU_403 PDF, refill and bleed the coolant, and look over the hose routing to make sure nothing rubs on moving parts.
- source:
- motoalliance
- ma_url:
- https://www.motoalliance.com/firestorm-cab-heater-ranger-570-midsize-etx
- desc_status:
- written_2026-10-28
- ma_parts:
- HT_CU_403 $399.99
