Thermostat / Heat Management Module, OEM - G2X, G30, G12, G15, X3, X4, X5, X6, X7, Z4 (B58C, B58D)

This part is listed by BMW as BMW part number 11538843406 (11 53 8 843 406) and is described as Genuine BMW Thermostat / Heat Management Module for G20 330i/M340i (2019+), G22/G23 M440i, M440ix (2021+), G30 540i, 540ix (2017+), G11/G12 740i, 740ix (2016+), G14/G15 840i (2019+), G01 X3 M40i (2018+), G02 X4 M40i (2019+), G05 X5 40i (2019+), and G29 Z4 M40i (2019+).

Includes new o-ring seals and hardware.

This is an OEM B58 thermostat manufactured by INA-Schaeffler - the original supplier to BMW for this part, as well as many other engine components. As the OEM it meets all of BMW's original design, fitment, and performance requirements and is TUV approved. OEM parts are the best alternative to more expensive Original BMW parts because they are virtually identical without the inflated price tag. This part has a two year warranty.

This part number replaces or is compatible with BMW part numbers 11538843406, 11 53 8 843 406, 11538642559, and 11 53 8 642 559.

For full BMW fitment information or for assistance from one of our BMW experts, we recommend calling us at 877-639-9648.