URO 31121141097 Suspension Control Arm - Front Left Upper

Overview of URO Front Left Upper Suspension Control Arm

The URO Suspension Control Arm 31121141097 is engineered for precise fitment on select BMW models including the 525i, 525iT, 530i, 535i, 540i, and M5. Designed to maintain suspension geometry and improve handling, this front left upper control arm comes pre-greased and includes essential components for reliable performance.

• Pre-greased for immediate installation
• Includes bushings and ball joint for complete assembly
• Bolt-in ball joint mounting with threaded stud (M14x1.5)
• High strength steel ball joint housing with metal bearing
• Neoprene dust boot in black for durability and protection
• Locking nut included for secure fastening
• Control arm weight: 4.35 lbs

Detailed Product Features and Specifications

This URO suspension control arm (part number 31121141097) is designed specifically for the front left upper position on BMW 5 Series and M5 models. The control arm features a bolt-in ball joint mounting type with a threaded ball joint stud sized M14x1.5, ensuring a secure and precise fit. The ball joint housing is constructed from high strength steel, providing durability under demanding driving conditions, while the metal bearing enhances smooth articulation.

The included bushings are pre-installed and pre-greased, eliminating the need for additional lubrication during installation. A neoprene dust boot in black protects the ball joint from contaminants and extends service life. Although grease fittings are not included and the control arm is not greaseable, the pre-greased components help maintain optimal function. The locking nut supplied ensures the ball joint stud remains securely fastened, contributing to suspension stability.

Compatible BMW Models and Applications

This control arm is compatible with the following BMW models:

• BMW 525i and 525iT
• BMW 530i
• BMW 535i
• BMW 540i
• BMW M5

It is designed to replace the front left upper suspension control arm, restoring proper suspension geometry and handling characteristics.

Common Suspension Issues Addressed

• Worn or damaged control arm bushings causing steering instability
• Ball joint wear leading to clunking noises or uneven tire wear
• Suspension misalignment affecting vehicle handling and tire life
• Excessive play in suspension components reducing ride quality
• Corroded or compromised ball joint housing impacting safety

Installation Notes and Tips

Installation of the URO 31121141097 control arm requires standard suspension tools and mechanical knowledge. Since the control arm comes pre-greased and includes bushings and ball joint, no additional lubrication is necessary. Ensure the locking nut is torqued to manufacturer specifications to maintain secure ball joint attachment. Verify alignment after installation to optimize handling and tire wear.

Quality Assurance and Warranty

URO parts are manufactured to meet or exceed OEM standards for fit, form, and function. This suspension control arm undergoes rigorous quality checks to ensure durability and performance. While specific warranty details are not provided, URO products typically carry coverage against defects in materials and workmanship. Consult product documentation or supplier for warranty terms.