URO 31121139988 Suspension Control Arm - Front Right Lower

Front Right Lower Control Arm for BMW

This URO suspension control arm, part number 31121139988, is built for the front right lower position on select BMW applications. It restores suspension geometry, steering response, and braking stability for BMW 528e, 535i, 535is, 525i, and related 7 Series and M models.

Key Features

• Front right lower suspension control arm for direct-fit replacement
• Pre-greased with a sealed ball joint and neoprene dust boot
• Ball joint uses a bolt-in mounting design with threaded stud
• Includes bushings and locking nut; grease fitting not included
• High-strength alloy metal construction for durability
• OE control arm geometry for correct wheel alignment and directional control
• 24-month unlimited mileage warranty

Detailed Description

URO part number 31121139988 is a front right lower suspension control arm engineered for BMW vehicles that use this aluminum wishbone-style layout. It is manufactured to OE control arm geometry to help maintain proper wheel alignment, predictable handling, and stable braking performance. The assembly includes a pre-greased ball joint, bushings, and a heat- and ozone-resistant neoprene dust boot to help protect internal components from dirt and moisture. This part cross-references Beck/Arnley 102-4128 and Dorman OE Solutions 520-576 for the same application.

Compatible With BMW 528e, 535i, 535is, 525i, 530i, 540i, 740i, 740iL, 750iL, 735i, 735iL, 524td, 533i, and M5 front right lower suspension applications. The URO 31121139988 is a direct replacement choice for restoring worn front suspension components on these BMW models.

What It Helps Address

• Loose or wandering steering feel
• Uneven tire wear from incorrect front-end geometry
• Clunking or knocking from a worn lower control arm
• Reduced braking stability during weight transfer
• Front suspension play caused by worn bushings or ball joint wear

Installation Notes and Tips

Install at the front right lower position only. Because this control arm is not adjustable, final alignment should be checked after installation. Verify the threaded ball joint stud size, mounting style, and vehicle application before installation. BMW references this component as a wishbone on the listed applications.

Quality Assurance

URO backs this control arm with a 24-month unlimited mileage warranty. The design uses high-strength steel ball joint housing, metal bearing material, and OE-style geometry to support consistent fitment and suspension performance.