Delphi TC1945 Suspension Control Arm - Rear Upper Center

Delphi TC1945 Rear Upper Center Control Arm

Delphi TC1945 is a standard replacement suspension control arm for select BMW rear suspension applications. It is built with pressed steel and a stamped construction, with rubber-and-steel bushings and a black cataphoresis finish for consistent fit and corrosion resistance.

Compatible with rear upper center positions on BMW 128i, 135i, 135is, 323i, 325i, 325xi, 328i, 328i xDrive, 328xi, 330i, 330xi, 335d, 335i, 335i xDrive, 335is, and 335xi applications, Delphi TC1945 supports precise rear suspension geometry. This part number, TC1945, is a direct-fit style replacement for vehicles that need a rear upper center control arm service part.

Key Features

• Pressed steel construction with stamped design
• Black finish with cataphoresis coating
• Rubber and steel bushings included
• Ball joint mounting type: press-in
• Straight shape, non-adjustable design
• Standard replacement grade for rear upper center use
• Distance between mounting holes: 273.0

Detailed Description

Delphi applies OE-focused dimensional and material analysis to this suspension control arm to help maintain proper alignment and suspension response. The part is tested for extreme temperature exposure and salt spray resistance as part of Delphi’s aftermarket steering and suspension validation process. For BMW rear suspension service, TC1945 provides a direct replacement solution for the rear upper center location on the listed 2006-2013 models.

This part cross-references Beck/Arnley 102-7121 for the same application.

Common Repair Uses

• Rear suspension clunking or looseness from worn bushings
• Uneven rear tire wear caused by suspension geometry wear
• Excessive rear-end play during braking or cornering
• Restoring rear upper center control arm function after bushing fatigue
• Replacing a bent or corroded control arm on BMW rear suspension systems

Installation Notes and Tips

Install TC1945 in the rear upper center position only on the listed BMW applications. Mounting hardware is not included, and the ball joint is not included. Because the ball joint mounting type is press-in, verify the service procedure and press requirements before installation. Final torque should be set at ride height where applicable, and a post-installation alignment is recommended.

Quality Assurance

Delphi validates this control arm with OE-oriented dimensional checks and material analysis, along with environmental testing that includes sub-zero and high-temperature exposure and extended salt spray testing. That process supports consistent fit and durability for BMW 128i, 135i, 328i, and related rear suspension applications.