Delphi TC4479 Suspension Control Arm and Ball Joint Assembly - Front Right Lower

Front Right Lower Control Arm for BMW i3

Delphi TC4479 is a front right lower suspension control arm and ball joint assembly built for BMW i3 and BMW i3s applications. It is engineered for OE-style fit and dimensional accuracy, with materials and testing standards developed to meet demanding steering and suspension conditions.

Key Features

• Front right lower suspension control arm and ball joint assembly
• Fits 2014-2021 BMW i3, front right lower
• Fits 2018-2021 BMW i3s, front right lower
• OE-focused dimensional and material analysis for proper part matching
• Tested for temperature extremes below -40°C and above 120°C
• Exposed to 720 hours of salt spray testing for corrosion resistance validation
• Delphi TC4479 cross-references BMW OE numbers 31 10 6 863 734 and 31 10 6 863 740

Detailed Description

Delphi TC4479 is a suspension control arm and ball joint assembly for the front right lower position on BMW i3 and BMW i3s models. It is built using Delphi’s OE engineering background and aftermarket steering and suspension expertise to support accurate fitment and consistent suspension geometry. This part number, TC4479, is a direct replacement option for 2014-2021 BMW i3 and 2018-2021 BMW i3s front right lower applications.

Delphi validates parts through temperature cycling and extended salt spray exposure, helping confirm durability in harsh operating environments. The brand also uses dimensional and material analysis to improve OE-to-aftermarket compatibility, which is important when replacing a front right lower control arm on a BMW i3 or BMW i3s.

Common Repair Uses

• Restores worn or damaged front suspension control arm function
• Addresses looseness or play in the front right lower suspension
• Helps correct clunking or knocking from the lower control arm area
• Supports proper wheel control and suspension alignment on BMW i3 and BMW i3s
• Replaces OE-style front right lower control arm assemblies with Delphi TC4479

Installation Notes and Tips

Verify the front right lower position before installation and confirm vehicle fitment by year, make, and model. After replacement, a professional wheel alignment is recommended to help restore suspension geometry and steering response. Inspect adjacent bushings, joints, and mounting points for wear before completing the repair.

Quality Assurance

Delphi applies OE-focused testing and material analysis to this suspension component, including extreme-temperature exposure and salt spray validation. This part cross-references BMW OE numbers 31 10 6 863 734 and 31 10 6 863 740 for the same application.