Delphi TC513 Suspension Control Arm and Ball Joint Assembly - Front Left Lower Forward

Front Left Lower Forward Control Arm Assembly

Delphi TC513 is a standard replacement suspension control arm and ball joint assembly for the front left lower forward position. It is built with a steel control arm, machined ball joint mounting, and a threaded ball joint stud for direct service on select BMW applications.

Compatible with 1982-1989 BMW 528e, 533i, 524td, 535i, 635CSi, M5, and M6 front left lower forward suspension locations, Delphi TC513 is engineered for OE-style dimensional and material match. The part number TC513 is backed by Delphi’s OE-focused testing approach, including temperature exposure from below -40 degrees C to over 120 degrees C and extended salt-spray corrosion testing.

Key Features

• Part number: TC513
• Front left lower forward suspension control arm and ball joint assembly
• Steel control arm with casting/forged construction
• Machined ball joint mounting with threaded stud design
• Natural rubber bushing material
• Mounting hardware included
• Standard replacement, light suspension grade
• Black finish

Detailed Product Overview

Delphi TC513 is built for the front left lower forward suspension position and is intended for BMW 528e, 533i, 524td, 535i, 635CSi, M5, and M6 models listed in the fitment data. The assembly uses a steel arm with a natural rubber bushing to restore suspension geometry and steering response where the original control arm has worn, loosened, or developed play at the ball joint or bushing.

This part cross-references Beck/Arnley 102-4127 and Mevotech Supreme CMK9483 for the same application. The TC513 part number is also commonly searched by buyers looking for a front left lower forward control arm assembly for BMW 635CSi, BMW 528e, or BMW 535i suspension repair.

Common Problems This Part Can Address

• Front-end clunking or knocking from a worn control arm or ball joint
• Excessive steering play or wandering at highway speeds
• Uneven tire wear caused by suspension looseness
• Vibration or instability from deteriorated bushings
• Loss of alignment stability after suspension wear

Installation Notes and Tips

Install TC513 on the front left lower forward suspension location only. Verify the mounting hole diameter, ball joint thread diameter, and stud length against the removed part before installation. Because this assembly is not pre-greased and does not include a grease fitting, inspect the surrounding suspension components, fasteners, and alignment settings during service. A professional wheel alignment is recommended after replacement.

Quality Assurance

Delphi applies OE-focused dimensional and material analysis to improve part-to-vehicle match and tests steering and suspension components under extreme temperature and corrosion conditions. That validation process supports consistent fitment and durability for the listed BMW applications.