Suspensia X31CJ6742 Suspension Control Arm and Ball Joint Assembly - Front Left Upper

Suspensia Suspension Control Arm and Ball Joint Assembly Overview

The Suspensia X31CJ6742 suspension control arm and ball joint assembly is engineered for select Mercedes-Benz models, including the C63 AMG, C250, C300, and SLK55 AMG. Designed with corrosion-resistant aluminum and pre-greased components, this assembly offers reliable performance and durability for your vehicle's suspension system.

• Corrosion-resistant aluminum control arm for enhanced durability
• Pre-greased ball joint with press-in mounting type
• Threaded ball joint stud for secure fitment
• Includes mounting hardware and rubber hydraulic bushings
• Composite bearing type for smooth operation
• Compatible with multiple Mercedes-Benz models such as C350, E350, and SLK320

Technical Details and Features

The control arm is constructed from lightweight aluminum finished in grey, providing resistance against corrosion and wear. It measures up to 16.457 inches in length and 4.055 inches in width, ensuring precise fitment. The assembly includes rubber hydraulic bushings that help absorb road vibrations and improve ride quality. The ball joint is pre-greased and features a press-in mounting type with a threaded stud, eliminating the need for additional grease fittings. Composite bearings are used to reduce friction and enhance longevity. Mounting hardware is included for a complete installation.

Compatible Mercedes-Benz Models

This Suspensia suspension control arm and ball joint assembly (part number X31CJ6742) is compatible with a range of Mercedes-Benz vehicles, including:

• C63 AMG
• C250, C300, C350
• E350, E400, E550
• SLC300
• SLK230, SLK250, SLK280, SLK300, SLK320, SLK350
• SLK32 AMG, SLK55 AMG

Common Suspension Issues Addressed

• Worn or damaged control arms causing poor handling
• Ball joint wear leading to steering instability
• Excessive vibration or noise from suspension bushings
• Corrosion-related component failure
• Loose or faulty mounting hardware affecting alignment

Installation Notes and Tips

Installation of the Suspensia X31CJ6742 control arm and ball joint assembly requires basic suspension knowledge and tools. Since the ball joint is pre-greased and press-in mounted, no additional greasing is necessary. Ensure all mounting hardware is securely tightened to manufacturer torque specifications. It is recommended to have a professional alignment performed after installation to maintain proper vehicle handling and tire wear.

Quality Assurance and Warranty

Suspensia manufactures this control arm and ball joint assembly with corrosion-resistant materials and composite bearings to meet OEM standards. The product includes mounting hardware and rubber hydraulic bushings for a complete replacement. While specific warranty details are not provided, Suspensia products typically adhere to industry quality standards for suspension components.