Mevotech CMS401301 Suspension Control Arm and Ball Joint Assembly - Front Left Upper

Front Left Upper Control Arm for Bronco

The Mevotech Supreme Parts CMS401301 is a front left upper suspension control arm and ball joint assembly for 2021-2025 Ford Bronco applications. Built with an aluminum arm, pre-greased components, and serviceable grease fittings, it is set up for direct replacement on high-use Bronco suspension systems.

Mevotech Supreme Parts are engineered in-house with application-specific upgrades for durability and performance. This CMS401301 assembly is aimed at Ford Bronco owners who need a reinforced front upper control arm with the ball joint, bushings, dust boot, and mounting hardware included in one service part.

Key Features

• Fits 2021-2025 Ford Bronco, front left upper
• Part number CMS401301
• Aluminum control arm construction
• Pre-greased with grease fitting included
• Ball joint included with press-in mounting type
• Threaded ball joint stud type
• Bushings included with rubber bushing material
• Dust boot included with neoprene boot material
• Mounting hardware and locking nut included
• Greaseable design for routine service

Detailed Description

The CMS401301 is a Mevotech Supreme front left upper control arm assembly engineered for the 2021-2025 Ford Bronco. It combines the control arm, ball joint, bushings, dust boot, and service hardware into one replacement assembly, helping restore front suspension geometry and steering response on Bronco models that see regular road or off-road use. The aluminum arm measures 11.42 inches at maximum width and 9.23 inches at maximum length, with a silver finish and blue boot color.

This part cross-references Motorcraft MB3Z3085A for the same application. It also cross-references Mevotech Supreme CMS401301.

Common Problems This Part Can Address

• Front-end clunking from worn upper control arm or ball joint components
• Excessive play in the front left upper suspension joint
• Uneven tire wear related to suspension wear
• Loose or inconsistent steering feel on Bronco front suspension
• Grease loss or contamination at the upper ball joint area

Installation Notes and Tips

Fits 2021-2025 Ford Bronco, front left upper. Confirm the position before installation, since this assembly is specific to the front left upper side. The ball joint uses a press-in mounting type with a threaded stud, and the included hardware and locking nut should be used during installation. Because the assembly is greaseable, service the fitting after installation according to the vehicle maintenance schedule.

Quality Assurance

Mevotech Supreme Parts are engineered in-house with application-specific upgrades for increased durability and performance. The CMS401301 is built for high-usage passenger vehicles, SUVs, fleets, commercial vehicles, and working trucks, with Labor Saver design elements intended to simplify installation.