URO 31121139991 Suspension Control Arm - Front Left Lower

Overview of URO Front Left Lower Suspension Control Arm

The URO Suspension Control Arm, part number 31121139991, is engineered for precise fitment on select BMW models including the 524td, 525i, 528e, 533i, 535i, 535is, 635CSi, 735i, 735iL, 750iL, M5, and M6. Designed to maintain suspension geometry and improve vehicle handling, this front left lower control arm is a critical component for your BMW's suspension system.

• Pre-greased for immediate installation and reduced maintenance
• Includes high-quality bushings for enhanced durability
• Ball joint included with bolt-in mounting type and threaded stud
• Constructed with high strength steel housing and metal bearing for longevity
• Equipped with a neoprene black dust boot to protect against contaminants
• Locking nut included for secure assembly
• Compatible with multiple BMW models for front left lower suspension position

Detailed Product Features and Specifications

This URO suspension control arm (31121139991) features a bolt-in ball joint mounting type with a threaded M14x1.50 ball stud, secured by a 22mm wrench size nut. The ball joint bearing is made of metal housed in high strength steel, ensuring reliable performance under various driving conditions. The included bushings help absorb road vibrations and maintain suspension alignment. The dust boot, made from durable neoprene in black, protects the ball joint from dirt and moisture, extending the service life of the component. Although the control arm is not greaseable and does not include a grease fitting, it comes pre-greased for convenience. The locking nut is included to ensure a secure and safe installation.

Compatible BMW Models and Applications

This front left lower suspension control arm is compatible with a range of BMW vehicles, including:

• BMW 524td
• BMW 525i
• BMW 528e
• BMW 533i
• BMW 535i and 535is
• BMW 635CSi
• BMW 735i and 735iL
• BMW 750iL
• BMW M5 and M6

Common Suspension Issues Addressed

• Worn or damaged control arm bushings causing poor handling
• Ball joint wear leading to suspension noise or looseness
• Misalignment resulting in uneven tire wear
• Compromised suspension geometry affecting vehicle stability
• Protection against dirt and moisture intrusion with included dust boot

Installation Notes and Tips

Installation of the URO control arm 31121139991 requires standard suspension tools. The bolt-in ball joint design allows for straightforward replacement without the need for press tools. Ensure the locking nut is properly torqued to manufacturer specifications using a 22mm wrench. Since the control arm is pre-greased and not greaseable, no additional lubrication is necessary during installation. Verify alignment after installation to maintain optimal suspension performance.

Quality Assurance and Warranty

URO parts are manufactured to meet or exceed OEM standards, using high strength steel and durable materials for long-lasting performance. This suspension control arm undergoes rigorous quality control to ensure fit, form, and function. While specific warranty details are not provided, URO typically offers coverage against manufacturing defects. Consult your supplier for warranty terms related to part number 31121139991.