Two kits: one for the 2017 launch-year X3 and one for 2018–2025, which is among our three best-selling heaters. Both mount hidden on the driver-side firewall and feed six vents: 14,600 BTU of engine-coolant heat, dedicated windshield defrost, all hardware and picture-rich instructions, shipped the same business day from Minnesota. Both fit the four-seat X3 MAX.
The MaxStat is worth adding on the X3 — it adds 10 to 15 degrees of cab heat and keeps the engine thermostat from cycling open and closed so quickly, so the heat in the cab stays steady. Use the year / make / model finder at the top of the page, or call 888-964-0135 and we'll sort it out in a minute. Both kits are listed below.