A RZR XP 900 with a windshield and roof can ride all winter if you can stay warm. The Firestorm heater for the 2015-2020 XP 900 makes up to 18,000 BTU from the engine's coolant and has two defrost vents to keep the windshield clear. One thing to check first: it does not work with Ride Command or the Polaris OEM wiper kit.
RZR XP 900 Highlights
- Fits 2015-2020 Polaris RZR XP 900 per Moto Alliance.
- Fan moves up to 125 CFM of heated air around an XP 900 cab.
- Defrost for the windshield and separate driver and passenger outlets.
- Hidden core install with RZR-specific brackets.
Winter RZR Tips
- A full windshield matters a lot. Without one, most of the heat blows out of the cab.
- Aim the air at the windshield first when the XP 900 has sat out overnight.
- Shut the valve off for summer dune or trail trips so the XP 900 cab stays cool.
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 |
|---|---|---|
| 2015-2020 | Polaris | RZR XP 900 |
Note: Moto Alliance says this heater will not work with Polaris Ride Command or the OEM wiper kit.
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 RZR XP 900
- 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 heater is for XP 900 owners who ride snow trails or cold fall mornings. Pair it with an RZR XP 900 windshield to keep the heat in, and see more in RZR XP 900 interior accessories and RZR XP 900 winches and recovery gear.
Installation Notes
If your RZR has Ride Command or the OEM wiper kit, stop here: this heater will not work with either. Otherwise, mount it with the RZR brackets and connect it to the coolant system with the included hose and alloy Y connectors. Refill and bleed the system, then check for leaks once the engine is warm.
- source:
- motoalliance
- ma_url:
- https://www.motoalliance.com/Firestorm-PRO-OEM-UTV-Cab-Heater-Kit-with-Defrost-for-2015-2020-Polaris-RZR-900-XP900
- desc_status:
- written_2026-10-28
- ma_parts:
- HT_CU_406_900 $399.99
