Delphi Lateral Arm P/N:TC8855
Delphi TC4988 rear left lower lateral arm for the 2018-2026 Audi A5 Quattro and other vehicles locates the rear wheel in the suspension.
A clunk from the rear over bumps, uneven rear tire wear or a car that wanders can mean a worn lateral arm. Worn shocks, links or bushings can make similar noises, so pin down the source before you replace the arm; a shop can check it on a lift.
The 2018-2026 Audi A5 Quattro, the 2018-2025 Audi S4 and the 2016-2025 Audi A4 Quattro take this arm, along with many other Audi models. Driving a different Audi? Look up your car in the "Vehicles it fits" section. The rear left position takes one arm, which is what this listing holds; the rear right is a separate part, and the two are normally replaced together.
Fit and size
Build and materials
Interchange: 526-579
8W0 501 529 D · KSC4248 · CMS701211 · X01LA0141
This part cross-references / interchanges with the following part numbers:
Does the Delphi TC4988 lateral arm fit the 2018-2026 Audi A5 Quattro?
Yes. Delphi TC4988 is the rear left lower rearward lateral arm for the 2018-2026 Audi A5 Quattro, and it also fits the 2018-2025 Audi S4.
How is the Delphi TC4988 lateral arm tested for heat, cold and salt?
Delphi tests these arms at temperatures below -40 degrees C and over 120 degrees C, plus 720 hours of salt spray. Anti-corrosion protection is applied to each part.
Are these lateral arms checked for cracks?
Yes. Each Delphi lateral arm goes through 100% crack detection and ultrasonic flaw detection.
Does the Delphi TC4988 replace part number 8W0 501 529 D?
Yes. 8W0 501 529 D is one of the numbers Delphi TC4988 replaces.
What are the signs of a worn rear lateral arm?
A clunk over bumps, uneven rear tire wear or the car wandering can each mean a worn lateral arm.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.