A heater for the Wolverine RMAX, 2020–2025
This Ice Crusher heater kit is built specifically for the Wolverine RMAX — not a universal heater adapted to fit. It puts 14,600 BTU of engine-coolant heat through 5 adjustable vents, including dedicated windshield defrost. The heater unit mounts under the driver seat. Because it runs on engine coolant, it makes real heat without draining your battery; the fan draws about what a factory blower does.
Fits
- 2020–2025 Yamaha Wolverine RMAX (see the year list)
By model year:
- 2025 Wolverine RMAX
- 2024 Wolverine RMAX
- 2023 Wolverine RMAX
- 2022 Wolverine RMAX
- 2021 Wolverine RMAX
- 2020 Wolverine RMAX
Not for: The Wolverine RMAX4 1000 Compact (see the RMAX-4 kit) and the 2016–2018 Wolverine (see the Wolverine kit).
Specs
| Heat output | 14,600 BTU |
|---|---|
| Airflow | 180 CFM |
| Vents | 5 adjustable, including defrost |
| Windshield defrost | Yes |
| Fan | Single |
| Heater size | 10 × 7.5 × 4.5 in |
| Mounts | Under the driver seat |
| Also included | Custom thermostat bypass housing |
| Install time | 4–8 hours |
| Warranty | 3 years, whole kit |
What’s in the box
- Heater unit with fan
- 5 adjustable vents, including defrost vents
- Coolant hose
- Fittings and mounting hardware, plus a custom thermostat bypass housing
- The specialty tools the install needs
- Picture-rich, step-by-step instructions written for the average do-it-yourselfer
Installation
The heater mounts under the driver seat, out of the way. You tap into the engine coolant and route the hose to the heater; the instructions show every step with pictures. Basic hand tools do the job.
Options
Hose clamp tools (+$24.99): A pair of clamp-off pliers that seal hoses up to 2 inches, so the coolant tie-in stays clean. Handy on radiator hoses too.

Questions we hear
What does the thermostat bypass housing do?
It’s a custom housing that sits behind the OEM thermostat so hot coolant reaches the heater faster and more consistently. It’s included with this kit.
Will it drain my battery?
No. The heat comes from your engine’s coolant, not the battery. The fan draws about what a factory blower does.
How long does the install take?
Plan on 4–8 hours depending on experience. Experienced do-it-yourselfers land at the low end; first-timers should set aside a full day and follow the picture-rich instructions step by step.
Do I need the hose clamp tools?
You can install without them, but they make the coolant tie-in faster and cleaner. They pinch the hoses shut so coolant doesn’t pour out, and less air gets into the system, which makes bleeding the air out much easier. Sold as a pair; they fit hoses up to 2 inches.
Why buy an Ice Crusher heater
We’re not the cheapest UTV heater. We’re the one designed, supported and shipped by the people who answer the phone. Every kit is built for a specific machine, comes complete, and is backed by real people who know it inside and out. And we keep improving our kits, even when it means retiring our own older designs.
Warranty, support and shipping
3-year warranty on the whole kit, electrical included. If something goes wrong, tell us the problem and we make it right. Tech support is unlimited and free for as long as you own the heater: call 888-964-0135 and a real person in Minnesota answers.
Free shipping in the lower 48. Order by noon CT, Monday through Friday, and it ships the same day. Canada: $30–$50 per heater freight depending on province; duties, taxes and brokerage are extra.
More help: Heater FAQ · Install videos on YouTube
- Legacy SKU:
- ICCH-UD-C-RMAX_198