URO 31121132353 Suspension Control Arm - Front Left Upper

BMW Front Left Upper Control Arm

This URO suspension control arm is built for BMW front-end service where steering precision, alignment, and braking stability matter. Designed for the front left upper position, part number 31121132353 supports OE-style geometry for a direct replacement on select BMW 5 Series, 6 Series, and M models.

Key Features

• Forged steel construction with black epoxy finish for durability
• Upper control arm for the front left suspension position
• Pre-greased with bushings and ball joint included
• Press-in ball joint design with threaded stud and locking nut included
• OE control arm geometry helps maintain correct wheel alignment and directional control
• Heat- and ozone-resistant dust boot material helps protect the ball joint from dirt and moisture
• 24-month unlimited mileage warranty

Detailed Description

URO part number 31121132353 is a front left upper suspension control arm engineered for select BMW applications, including the 1982-1988 BMW 528e, 1983-1984 BMW 533i, 1985-1987 BMW 535i, 1988 BMW 535i, 1988 BMW 535is, 1988 BMW M5, 1987-1988 BMW M6, 1985-1986 BMW 524td, and 1985-1989 BMW 635CSi. It is also a direct-fit option for BMW owners searching for a front left upper control arm for 1980s BMW 5 Series and 6 Series suspension repair. The forged steel arm, black epoxy coating, and included ball joint and bushings are specified to restore suspension handling and braking stability while maintaining OE-style fitment.

This part cross-references Dorman OE Solutions 520-729 for the same application.

What It Helps Address

• Loose or unstable front suspension feel
• Uneven tire wear caused by worn control arm geometry
• Clunking or play from worn bushings or ball joint wear
• Reduced steering response and directional control
• Brake instability caused by front suspension wear

Installation Notes

Install in the front left upper position only. Confirm the ball joint orientation noted for your vehicle, including applications where the ball joint faces down with the bushing. This control arm uses a press-in ball joint design and includes a threaded stud with locking nut; mounting hardware is not included. Professional alignment is recommended after installation to verify suspension geometry and wheel alignment.

Quality Assurance

URO manufactures this control arm to OE control arm geometry for correct alignment and handling characteristics. The part is backed by a 24-month unlimited mileage warranty.