Dorman 527-407 Suspension Control Arm and Ball Joint Assembly - Front Left Lower

Dorman 527-407 Front Left Lower Control Arm

Dorman 527-407 is a direct replacement suspension control arm and ball joint assembly for specific Mazda applications. It is built for the front left lower position on 2019-2025 Mazda 3 and Mazda 3 Sport models, with OE-style fitment for stable handling and consistent road feel.

Key Features

• Direct replacement for the original equipment control arm and ball joint assembly
• Fits 2019-2025 Mazda 3, front left lower
• Fits 2019-2025 Mazda 3 Sport, front left lower
• Stamped steel control arm construction with black finish
• Ball joint included and installed
• Pre-greased design with no grease fitting
• Bushings included with rubber and steel construction
• Mounting hardware included
• Standard replacement grade
• Press-in ball joint mounting type with pinch-style stud

Detailed Description

This Dorman suspension control arm and ball joint assembly is engineered as an OE-style replacement for the front left lower suspension on Mazda 3 and Mazda 3 Sport vehicles. The stamped steel arm, pre-installed ball joint, and included bushings support predictable suspension movement, directional stability, and a smooth ride. Part number 527-407 is a practical choice when replacing worn front suspension components on 2019-2025 Mazda 3 and Mazda 3 Sport models.

This part cross-references Mevotech Supreme CMS761234 and Suspensia X32CJ1429 for the same application.

What It Helps Address

• Clunking or knocking from the front suspension
• Excessive play in the lower control arm assembly
• Uneven tire wear caused by worn suspension joints or bushings
• Loose or unstable steering feel
• Reduced directional control over bumps and during braking

Installation Notes and Tips

Confirm front left lower fitment before installation on the Mazda 3 or Mazda 3 Sport. Inspect adjacent suspension components, alignment angles, and mounting points during replacement. Because the ball joint is press-in and the stud uses a pinch-style connection, proper tools and torque procedures are important for correct installation. A wheel alignment is recommended after suspension work.

Quality Assurance

Dorman uses an industry-leading evaluation process to verify fit, function, and durability for this replacement control arm assembly. The design is intended to deliver smooth ride quality, directional stability, and predictable suspension dynamics for the listed Mazda applications.