This original BMW serpentine belt tensioner fits models with the B46P 4-cylinder engine. Applications include 2024+ G20 330i, 2024+ G22/G23/G26 430i, 2024+ G60 530i, and 2025+ G45 X3 30 xDrive.
This part is listed by BMW as BMW part number 11285A6F412 (11-28-5-A6F-412) and is described as Genuine BMW Tensioner for Serpentine Drive Belt.
BMW Fitments:
3 Series
G20 (2019+) > 330i B48P (2025+)
G20 (2019+) > 330i xDrive B48P (2025+)
4 Series
G22 / G23 (2021+) > 430i B48P (2025+)
G22 / G23 (2021+) > 430i xDrive B48P (2025+)
4 Series
G26 (2022+) > 430i Gran Coupe B48P (2025+)
G26 (2022+) > 430i xDrive Gran Coupe B48P (2025+)
5 Series
G60 (2024+) > 530i B48P (2024+)
G60 (2024+) > 530i xDrive B48P (2024)
X3 Series
G45 X3 (2025+) > X3 30 xDrive
