Locate the rear upper knuckle and keep suspension movement controlled with the Delphi Knuckle Bushing TD2001W. This rear upper bushing drops in as a direct-fit replacement for the 2006-2010 Ford Explorer, 2007-2010 Ford Explorer Sport Trac, and 2006-2010 Mercury Mountaineer — see the Buyer's Guide tab for engine-level coverage. Delphi builds on the OE safety technology fitted to millions of vehicles worldwide and applies that expertise across its aftermarket steering and suspension portfolio.
If a cracked, dried, or deteriorated suspension knuckle bushing is behind clunking, play, or added noise from the rear suspension, this Delphi unit replaces it in the rear upper position.
Interchange: 523-214 · 6L2Z 5A638-CE
523214 · 6L2Z5A638CE · K201873
This part cross-references / interchanges with the following part numbers:
What is the Delphi TD2001W?
It is a Delphi knuckle bushing (MPN TD2001W) for the rear upper position, designed to OE standards as a direct-fit replacement on the listed applications.
Which vehicles does this bushing fit?
It fits the 2006-2010 Ford Explorer, 2007-2010 Ford Explorer Sport Trac, and 2006-2010 Mercury Mountaineer. Check the Buyer's Guide tab for engine-level detail.
Where is this bushing located?
It installs in the rear upper knuckle position, where it locates the knuckle and helps control suspension movement while damping noise.
What are signs this bushing may need replacing?
Clunking, added noise, or play from the rear suspension can indicate a cracked or deteriorated bushing. Diagnose the cause first, since other parts can produce similar symptoms.
Has this Delphi bushing been durability tested?
Yes. Delphi tests to withstand temperatures below -40°C and over 120°C and exposes the parts to 720 hours of salt spray, with dimensional and material analysis for OE compatibility.
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.
