Restore tight, predictable steering and keep the front wheel securely located with the Mevotech Supreme Suspension Control Arm and Ball Joint Assembly (CMS20398) — a front left (driver's side) lower F-150 control arm that installs as a direct-fit replacement. It fits the 1997-2003 Ford F-150 and 2004 Ford F-150 Heritage, the 1997-2002 Ford Expedition, 1997-1999 Ford F-250, 1997 Ford F-250 HD, and 1998-2002 Lincoln Navigator (see the Buyer's Guide tab for your engine). This control arm and ball joint assembly locates the lower end of the steering knuckle while the integrated ball joint lets the wheel pivot and travel through the suspension.
If a worn control arm bushing or ball joint is behind your clunking, wandering steering, or uneven tire wear, this Mevotech Supreme control arm replaces the failed part. Sold individually for the front left lower corner; order the matching side to replace both together.
Interchange: 622.65073 · 521-145
62265073 · 521145 · 19290346 · TC5773 · CB85363 · CB85363PR · CA16115 · 1L3Z3079BA · 2L3Z3079BA · 6L3Z3079B · F65Z3079FE · F75Z3079DA · XL3Z3079DA · XL3Z3079DB · CAK620211 · CK620211 · K620211 · RK620211 · 30034145 · 11CB40080 · X15CJ7072 · CP5022 · TK620211
This part cross-references / interchanges with the following part numbers:
Does the CMS20398 fit my Ford F-150?
Yes — it fits the 1997-2003 Ford F-150 and 2004 F-150 Heritage, the 1997-2002 Expedition, 1997-1999 F-250, 1997 F-250 HD, and 1998-2002 Lincoln Navigator. See the Buyer's Guide tab for your engine.
What position does this control arm cover?
It's the front left (driver's side) lower control arm and ball joint assembly. It's sold individually, so order the matching part for the opposite side if you're replacing both corners.
Does it come with installation hardware?
Yes — it includes a part-specific castle nut and cotter pin to secure the ball joint, along with a 90-degree SAE grease fitting for servicing.
Can this control arm be greased?
Yes. It ships with a 90-degree SAE grease fitting, so the ball joint can be lubricated during routine service.
What are signs my control arm or ball joint may need replacing?
Clunking over bumps, loose or wandering steering, uneven tire wear, or a worn or torn ball joint boot are common signs. Diagnose the cause before replacing, as these symptoms can have other sources.
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.
