Delphi Suspension Ball Joint P/N:TC1621
Keep the rear suspension tight and steering predictable with the DELPHI ball joint TC4165, a rear right lower joint that pivots the control arm against the knuckle so the wheel can travel and turn smoothly. It fits the 2001-2008 Ford Escape and 2005-2008 Mercury Mariner — see the Buyer's Guide tab for engine-level applications.
Delphi applies its OE expertise to its aftermarket portfolio, testing to extremes for OE-level performance: parts endure temperatures below -40°C and above 120°C plus 720 hours of salt spray, with dimensional and material analysis for close OE-to-aftermarket compatibility.
If a worn rear right lower ball joint is behind clunking over bumps, loose steering, or uneven tire wear, this replaces it. Wondering about Ford Escape ball joint replacement cost — inspect the mating parts and torque to spec during install.
Interchange: 5L8Z 5500-AC · YL8Z 5500-AC
5L8Z5500AC · YL8Z5500AC · K500135 · MS40507
This part cross-references / interchanges with the following part numbers:
Does this DELPHI ball joint fit a 2008 Ford Escape?
Yes. TC4165 is listed for the 2001-2008 Ford Escape and 2005-2008 Mercury Mariner. Check the Buyer's Guide tab to confirm the engine-level application for your vehicle.
What position is this ball joint?
It is the rear right lower ball joint. Confirm your vehicle needs a rear right lower unit before ordering.
What are signs my ball joint may need replacing?
Clunking over bumps, loose or wandering steering, and uneven tire wear can be signs of a worn joint. Have the cause diagnosed, since these symptoms can have other sources.
What is the boot made of?
It uses a chloroprene rubber boot, which improves durability and helps prevent premature failure of the joint.
How is this joint tested for durability?
Delphi tests to extremes, with parts enduring temperatures below -40°C and above 120°C plus 720 hours of salt spray, and machines to micron tolerances.
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.