RIDEX 397E0129 Coolant Expansion Tank

RIDEX 397E0129 is a coolant expansion tank designed to help maintain correct coolant volume and support reliable cooling system operation in compatible vehicle applications. Built for dependable fit and durability, this plastic expansion tank comes in black finish and is supplied with sensor, without cap.

Common engine applications include selected BMW X3 F25 and X4 F26 models with 2.0 and 3.0 engines, including petrol and diesel variants such as N20, N47, N55 and N57 applications, depending on model year, chassis number and specification.

OE Number

OE reference number(s) comparable with the original spare part number:

OE 17138616418 — BMW
OE 17137823544 — BMW
OE 17137639464 — BMW