Mevotech Supreme Lateral Arm and Ball Joint Assembly P/N:CMS901123
Dial in precise rear suspension geometry with the Mevotech Supreme Lateral Arm and Ball Joint Assembly (CMS401266), a direct-fit replacement for the 2018-2024 Ford Expedition and 2018-2024 Lincoln Navigator. It locates the wheel in the rear upper rearward position and combines the lateral arm, ball joint, and bushings into one serviceable unit.
If a worn lateral arm, ball joint, or bushing is behind rear-end clunks, looseness, or uneven tire wear, this assembly replaces those components in one part. See the Buyer's Guide tab for engine-level fitment.
Interchange: 19459256 · JL1Z5500A · JL1Z5500D · JL1Z5500E · JL1Z5500F · 2608746 · 2CB402898
This part cross-references / interchanges with the following part numbers:
What vehicles does the CMS401266 fit?
It is a direct-fit replacement for the 2018-2024 Ford Expedition and 2018-2024 Lincoln Navigator. Check the Buyer's Guide tab to confirm the exact application for your vehicle.
Where does this assembly mount on the vehicle?
It installs in the rear upper rearward position, combining the lateral arm, ball joint, and bushings into a single serviceable unit.
What is the arm made of?
It uses forged steel construction with a thicker cross section for added durability, plus a protective surface treatment that helps resist rust build-up.
Does it include a grease fitting and hardware?
Yes. It includes a 180-degree SAE grease fitting for easy servicing and a part-specific nylon locking nut to speed up ball joint installation.
What are signs this part may need replacing?
Clunking or knocking from the rear, looseness, or uneven tire wear can be signs of a worn arm, ball joint, or bushing. Diagnose the cause before replacing, as other parts can produce similar symptoms.
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.