BMW M135i / M235i / M2 / 335i / 435i - N54 and N55 Mishimoto Racing thermostat

Mishimoto racing thermostat for BMW N54 and N55 engines, designed to improve cooling efficiency by allowing coolant to circulate earlier. It opens at 74°C instead of the OEM 97°C, helping reduce and maintain lower engine temperatures. Direct bolt-on installation with seals included. Only for vehicles equipped with the stock plastic thermostat housing. Mishimoto lifetime warranty.

Compatibility:
BMW | 1 Series E8x | 2008–2013 | 135i | 306 HP
BMW | 1 Series E8x | 2008–2013 | 1M | 340 HP
BMW | 1 Series F2x | 2011–2019 | M135i | 320 / 326 HP
BMW | 2 Series F2x / F87 | 2013–2021 | M2 | 370 HP
BMW | 2 Series F2x / F87 | 2013–2021 | M235i | 326 HP
BMW | 3 Series E9x | 2006–2013 | 335i | 306 HP
BMW | 3 Series F3x / F80 | 2012–2019 | 335i | 306 HP
BMW | 4 Series F3x / F8x | 2013–2020 | 435i | 306 HP