Keep the rear suspension pivoting smoothly and securely with the Delphi ball joint TC350, a rear lower suspension ball joint that draws on Delphi's OE expertise. It drops in as a direct-fit replacement for many vehicles, among them the 1988-1989 Audi 80, 1988-1989 Audi 80 Quattro and 1988-1989 Audi 90 — see the "Vehicles it fits" section for the full list and engine-level detail.
A ball joint locates and pivots the suspension, letting the wheel move up and down while carrying load. When the joint wears, look for clunking on acceleration or over bumps, loose or wandering steering, and uneven tire wear as signs it may need replacing.
- High-quality forgings: built for increased strength and smooth operation.
- Chloroprene rubber boots: help improve durability and guard against premature failure.
- Micron-tolerance machining: supports durable, smooth joint operation.
- Anti-corrosion protection: applied to each part for corrosion prevention and enhanced aesthetics.
Delphi tests to OE performance extremes, from below -40°C to over 120°C, with 720 hours of salt-spray exposure and extensive dimensional and material analysis.
Interchange: 857 505 365
857505365 · K90696 · MK90696
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
857 505 365, K90696, MK90696
Frequently Asked Questions
What is the Delphi ball joint TC350?
It is a rear lower suspension ball joint that locates and pivots the suspension, letting the wheel move while carrying load.
Which vehicles does the TC350 fit?
It fits many vehicles, among them the 1988-1989 Audi 80, 1988-1989 Audi 80 Quattro and 1988-1989 Audi 90. See the "Vehicles it fits" section for the full list.
What are signs this ball joint may need replacing?
Clunking on acceleration or over bumps, loose or wandering steering, and uneven tire wear can indicate a worn joint. Diagnose the cause before replacing.
What type of boot does it use?
It uses a chloroprene rubber boot designed to improve durability and help prevent premature failure.
What numbers does the TC350 interchange with?
It replaces 857 505 365, 857505365, K90696, and MK90696.
