Delphi TA6399 Steering Tie Rod End - Left Outer

Front Left Outer Steering Tie Rod End

Delphi TA6399 is a front left outer steering tie rod end built for direct replacement in select Cadillac and Buick applications. It is engineered with OE-focused dimensional and material analysis to support proper steering geometry and consistent fitment.

• Front left outer steering tie rod end
• OE-based design for aftermarket steering service
• Tested for temperature extremes below -40 C and above 120 C
• Exposed to 720 hours of salt spray testing
• Cross-references OE part number 22776529

Vehicle Fitment

• Fits 2014-2019 Cadillac XTS, left outer, electric steering
• Fits 2014-2017 Buick Regal, left outer
• Fits 2015-2016 Buick LaCrosse, left outer
• Fits 2014 Buick LaCrosse, left outer, with Belt Driven Electronic Power Steering (EPS) System (NJ2)

Detailed Description

Delphi TA6399 is a steering tie rod end for the front left outer position, made for vehicles that require accurate steering linkage alignment and dependable road feel. This part is listed for the Cadillac XTS with electric steering, plus Buick Regal and Buick LaCrosse applications, including the 2014 LaCrosse with Belt Driven Electronic Power Steering (EPS) System (NJ2). If you are replacing a worn Cadillac XTS tie rod end or servicing a Buick Regal or Buick LaCrosse steering linkage, TA6399 provides a direct-fit service part backed by Delphi OE engineering practices.

Delphi applies dimensional and material analysis to help match OE and aftermarket requirements, and the part is validated through extreme temperature exposure and salt spray testing to evaluate durability in demanding conditions. TA6399 is a practical choice for restoring steering response and maintaining correct front-end alignment on the listed vehicles.

What It Helps Fix

• Loose or wandering steering feel
• Front-end play caused by a worn outer tie rod end
• Uneven tire wear related to steering linkage wear
• Clunking or knocking from the front steering area
• Alignment issues after steering component wear

Installation Notes and Tips

Verify the front left outer position and confirm steering system type before installation. After replacement, a professional wheel alignment is recommended to restore correct toe settings and steering wheel centering. Compare the old part to the new Delphi TA6399 before installation to confirm match with the vehicle’s steering configuration.

Quality Assurance

Delphi uses OE safety technology and aftermarket validation methods for its steering portfolio. TA6399 is tested for temperature extremes and corrosion exposure, with OE-focused dimensional analysis used to support fit and function on the listed Cadillac and Buick applications.