Delphi Suspension Ball Joint P/N:TC1621
Tighten up your steering and keep the front suspension pivoting smoothly with the Delphi Suspension Ball Joint TC3717, a front upper ball joint that connects the control arm to the steering knuckle and lets the wheel move through travel and steering angles. This Ford Fusion ball joint drops in as a direct-fit replacement for the 2006-2009 Ford Fusion, 2007-2008 Lincoln MKZ, 2006 Lincoln Zephyr, 2006-2009 Mercury Milan, and 2003-2008 Mazda 6 — see the Buyer's Guide tab for engine-level details.
Built on Delphi's OE safety technology, these parts are tested to the extreme — withstanding temperatures below -40°C and over 120°C and enduring 720 hours of salt spray. If a worn ball joint is behind clunking over bumps, wandering steering, or uneven tire wear, this unit replaces it. Ball joints wear as a pair, so consider replacing both sides for balanced handling.
Will this fit my Ford Fusion?
Yes. The Delphi TC3717 is a direct-fit replacement for the 2006-2009 Ford Fusion, plus the Lincoln MKZ, Lincoln Zephyr, Mercury Milan, and Mazda 6. Check the Buyer's Guide tab to confirm your exact vehicle.
What position is this ball joint?
This is the front upper ball joint, which links the upper control arm to the steering knuckle and allows the suspension to move and the wheel to steer.
What are the signs a ball joint may need replacing?
Common signs include clunking or knocking over bumps, wandering or loose steering, and uneven tire wear. Have the suspension inspected to confirm the cause before replacing.
What is the boot made of?
The Delphi ball joint uses a chloroprene rubber boot, which improves durability and helps prevent premature failure by sealing out contaminants.
Do I need to replace both sides for a Ford Fusion ball joint replacement?
It's sold individually. Ball joints wear at a similar rate, so replacing both sides together is recommended for balanced handling and even wear.
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.