Moog K8678 Suspension Ball Joint - Front Upper

MOOG K8678 Front Upper Ball Joint

MOOG K8678 is a greaseable front upper suspension ball joint built for direct replacement service on select Ford, Lincoln, and Mercury full-size sedans. It uses a bolt-on, 2-bolt mounting design and neoprene material to support reliable steering and suspension operation in daily driving.

Key Features

• Greaseable design for routine lubrication service
• Bolt-on (2-bolt) mounting type for straightforward installation
• Standard suspension grade type
• Neoprene material
• Maximum outside diameter: 1.920 in.
• Mounting hole quantity: 2
• MOOG part number K8678

Fitment and Application

• Fits 1995-2002 Ford Crown Victoria, front upper
• Fits 1995-2002 Lincoln Town Car, front upper
• Fits 1995-2002 Mercury Grand Marquis, front upper

This MOOG K8678 ball joint is a direct-fit suspension replacement for 1995-2002 Ford Crown Victoria, 1995-2002 Lincoln Town Car, and 1995-2002 Mercury Grand Marquis front upper applications. It is built for vehicles that use a 2-bolt mounting pattern and serviceable grease fitting, making it a practical choice when replacing worn steering and suspension joints on these platforms. This part cross-references Dorman OE Solutions 536-548 for the same application.

What It Helps Address

• Front-end looseness or play from a worn upper ball joint
• Clunking or knocking noises from the suspension
• Uneven tire wear related to suspension joint wear
• Steering wander or reduced directional stability
• Service intervals that call for a greaseable joint

Installation Notes and Tips

Verify the vehicle’s front upper suspension layout before ordering, since this part is specific to the listed Ford Crown Victoria, Lincoln Town Car, and Mercury Grand Marquis applications. Confirm the 2-bolt mounting style, inspect the surrounding control arm and hardware condition, and follow factory service procedures for torque and alignment after installation. The greaseable design allows periodic lubrication after service.

Quality Assurance

MOOG ball joints are backed by materials selection and testing practices aimed at consistent replacement performance. The brand’s problem-solving design approach supports easier installation and dependable service in suspension repair work.