Help keep the rear suspension located and your alignment on-spec with the Mevotech Supreme Lateral Arm CMS501178, a direct-fit replacement for the listed applications. It fits many vehicles, among them the 2009-2017 Chevrolet Traverse, 2007-2017 GMC Acadia and 2008-2017 Buick Enclave; see the Buyer's Guide tab for the full list. This is the rear upper forward lateral arm, which positions the rear knuckle and helps maintain proper wheel geometry as the suspension travels.
Signs the original lateral arm may need replacing include clunking or knocking from the rear, uneven or accelerated tire wear, and alignment that won't hold. If a worn or damaged rear upper forward arm is the cause, this arm replaces it. Diagnose the root cause before replacing, and refer to the vehicle service information for the correct fasteners and whether they may be reused. See the Buyer's Guide tab for the full engine-level fitment.
Interchange: 800-657267 · 522-868
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This part cross-references / interchanges with the following part numbers:
What position does this lateral arm replace?
It is the rear upper forward lateral arm, which locates the rear knuckle and helps maintain proper rear wheel geometry through suspension travel.
What vehicles does the CMS501178 fit?
It fits many vehicles, among them the 2009-2017 Chevrolet Traverse, 2007-2017 GMC Acadia and 2008-2017 Buick Enclave. See the Buyer's Guide tab for the full list.
What is the arm made of?
It uses forged steel construction with a protective surface treatment that helps resist corrosion and rust build-up.
What are signs I may need to replace this lateral arm?
Clunking or knocking from the rear, uneven or accelerated tire wear, and alignment that won't stay set. Diagnose the cause first, since other parts can produce these symptoms.
Are mounting fasteners included?
Consult the vehicle service information for the correct fasteners and whether any may be reused, as many suspension fasteners are single-use.
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.
