MAS Chassis CB85058 Suspension Control Arm and Ball Joint Assembly - Front Right Upper

OE-Style Front Right Upper Control Arm

MAS Chassis CB85058 is a direct replacement suspension control arm and ball joint assembly for specific Ford, Mercury, and Lincoln platform applications. It is built for the front right upper position and focuses on restoring smooth ride quality, directional stability, and predictable steering response.

Compatible With 2006-2010 Ford Explorer, front right upper; 2007-2010 Ford Explorer Sport Trac, front right upper; and 2006-2010 Mercury Mountaineer, front right upper. The CB85058 is a practical OE-style solution for worn upper control arm and ball joint service on these vehicles.

Key Features

• Direct replacement suspension control arm and ball joint assembly
• Fits the front right upper position on listed applications
• Steel stamped control arm construction with black finish
• Ball joint is included and installed
• Press-in ball joint design with threaded stud
• Rubber bushings included
• Grease fitting included for serviceability
• Mounting hardware included

Detailed Description

MAS Chassis CB85058 is engineered as an OE replacement for the front right upper suspension location on the 2006-2010 Ford Explorer, 2007-2010 Ford Explorer Sport Trac, and 2006-2010 Mercury Mountaineer. The stamped steel arm, rubber bushings, and installed ball joint are selected to match the needs of everyday suspension repair where original geometry and consistent handling matter. This part number, CB85058, is a fitment-specific option for restoring upper control arm function without changing the vehicle’s original suspension layout.

This part cross-references MOOG Chassis Products CK80722 and Delphi TC6139 for the same application.

Common Repair Symptoms

• Clunking or knocking from the front suspension
• Uneven tire wear caused by worn upper control arm components
• Loose or wandering steering feel
• Excessive play at the front right upper suspension point
• Reduced directional stability over bumps and turns

Installation Notes

Verify vehicle fitment by year, make, model, and front right upper position before installation. Inspect adjacent suspension components, fasteners, and alignment settings during service. Because the ball joint is press-in and installed, proper suspension tools and alignment procedures are recommended after replacement. Confirm the mounting hole size and hardware interface match the vehicle before assembly.

Quality Assurance

MAS Chassis states that this assembly goes through an industry-focused evaluation process to help deliver consistent ride quality and stable handling characteristics. The CB85058 is built as a regular-grade replacement part for service on the specified Ford Explorer, Ford Explorer Sport Trac, and Mercury Mountaineer applications.