Delphi TC1320 Suspension Control Arm and Ball Joint Assembly - Front Left Lower

Front Left Lower Control Arm Assembly

Delphi TC1320 is a standard replacement suspension control arm and ball joint assembly for the front left lower position. It is built for BMW 745i, 745Li, 750i, 750Li, 760i, and 760Li applications with a radius arm, giving you a direct-fit option for restoring front suspension geometry and steering response.

Delphi applies OE-focused dimensional and material analysis to help match aftermarket fitment to the original part. The aluminum casting/forged construction, natural rubber bushings, and threaded ball joint stud support a precise suspension repair on BMW 7 Series models.

• Part number: TC1320
• Front left lower suspension control arm and ball joint assembly
• Aluminum control arm construction with casting/forged design
• Natural rubber bushings included
• Mounting hardware included
• Threaded ball joint stud with 14.0 mm thread diameter
• Standard replacement, light suspension grade
• Not adjustable and not greaseable

Vehicle Fitment

• Fits 2006-2008 BMW 750i, front left lower, with radius arm
• Fits 2006-2008 BMW 750Li, front left lower, with radius arm
• Fits 2003-2008 BMW 760Li, front left lower, with radius arm
• Fits 2004-2006 BMW 760i, front left lower, with radius arm
• Fits 2002-2005 BMW 745i, front left lower, with radius arm
• Fits 2002-2005 BMW 745Li, front left lower, with radius arm

This part cross-references MOOG Chassis Products RK620458 and Dorman - OE Solutions 520-791 for the same application.

Common Repair Uses

• Restores worn front lower suspension support on BMW 7 Series models
• Addresses looseness or play from a worn ball joint
• Helps correct clunking or knocking from the front suspension
• Supports proper wheel alignment after control arm wear
• Replaces cracked or deteriorated bushings in the front left lower arm

Installation Notes

Confirm the vehicle is equipped with the radius arm configuration before ordering. Inspect the mating hardware, alignment settings, and adjacent suspension components during installation. Because this assembly is not adjustable, final alignment should be performed after replacement to verify suspension geometry.

Quality Assurance

Delphi tests steering and suspension components under extreme temperature and corrosion conditions, including sub-zero and high-heat exposure plus extended salt spray testing. That OE-focused validation supports consistent fit and durability for BMW 745i, 745Li, 750i, 750Li, 760i, and 760Li front suspension service.