Delphi TC3437 Suspension Control Arm and Ball Joint Assembly - Front Left Lower Forward

Delphi Suspension Control Arm and Ball Joint Assembly Overview

The Delphi TC3437 suspension control arm and ball joint assembly is engineered for front left lower forward suspension applications on select BMW xDrive models. Designed with durable aluminum construction and natural rubber bushings, this assembly provides reliable performance for light suspension grade needs.

• Aluminum control arm with casting and forged construction for strength and reduced weight
• Includes natural rubber bushings for effective vibration dampening
• Machined ball joint mounting with threaded stud for secure fitment
• Standard replacement grade suitable for front left lower forward position
• Compatible with multiple BMW xDrive models including 228i, 320i, 328i, 330i, 335i, 340i, 428i, 430i, 435i, 440i, M235i, and M240i

Technical Details and Specifications

The Delphi TC3437 control arm features a silver aluminum body constructed through a combination of casting and forging processes, ensuring a balance of durability and lightweight design. The assembly includes natural rubber bushings that help absorb road vibrations and maintain suspension integrity. The ball joint is machined and equipped with a threaded stud measuring 14 mm in diameter and 82 mm in length, providing a precise and secure connection to the vehicle’s suspension system. This part is designed for a single mounting hole with a diameter of 12.2 mm and is not adjustable or greaseable, reflecting its standard replacement grade classification.

Compatible BMW Models and Applications

This suspension control arm and ball joint assembly is compatible with a range of BMW xDrive models, specifically for the front left lower forward suspension position. Compatible vehicles include the BMW 228i xDrive, 230i xDrive, 320i xDrive, 328d xDrive, 328i xDrive, 330i xDrive, 335i xDrive, 340i xDrive, 428i xDrive and Gran Coupe variants, 430i xDrive and Gran Coupe variants, 435i xDrive and Gran Coupe variants, 440i xDrive and Gran Coupe variants, as well as the M235i xDrive and M240i xDrive models.

Common Suspension Issues Addressed

• Worn or damaged control arm bushings causing poor handling or vibrations
• Loose or failing ball joints leading to steering instability
• Corroded or weakened control arm structure affecting suspension alignment
• Excessive suspension noise from degraded components
• Uneven tire wear due to suspension component failure

Installation Notes and Tips

When installing the Delphi TC3437 control arm assembly, ensure the vehicle is securely lifted and supported. Remove the old control arm carefully, noting the position of bushings and ball joint connections. Since this part is not greaseable and does not include a grease fitting, no additional lubrication is required during installation. Torque all mounting hardware to manufacturer specifications and verify proper alignment after installation to maintain optimal suspension performance.

Quality Assurance and Warranty

Delphi suspension components meet standard replacement grade requirements, providing reliable performance for light suspension applications. The TC3437 assembly is manufactured with precision machining and quality materials to ensure durability and fitment accuracy. Warranty coverage details should be confirmed with the point of purchase or Delphi directly.