Front Left Thrust Arm, OEM - E39 525i/528i/530i

OEM complete thrust arm with bushing and ball joint. Direct replacement for BMW #31121141717.

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The Thrust Arm, also known as the thrust rod, upper control arm, or tension strut, on your 1997-2003 E39 525i, 528i, 530i as well as the Z8 Roadster is an OEM direct replacement to the original BMW arm. It includes the inner rubber bushing and the outer ball joint for a complete and total replacement. Replaces the thrust arm on the driver's side.

The rubber inner bushing on the original arm naturally wears prematurely, causing sloppy steering, poor tire wear, and jolting or instability during braking. The ball joint in the arm can also become worn and cause bad handling and wear, so we always recommend checking it along with the bushing and lower control arm (wishbone) when diagnosing issues.

NOTE: For even better handling and performance, we recommend Powerflex polyurethane bushings as an upgrade.

This thrust arm is manufactured by TRW, an original supplier to BMW for many suspension components. It comes with a two year warranty.

BMW Fitments:

5 Series
E39 (97-03) > 525i
E39 (97-03) > 528i
E39 (97-03) > 530i
Z Series
E52 Z8 (00-03) > Z8 Roadster (2000-2003)
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