Dorman 598-722 Junction Block

OE-Style Junction Block for 2003 Ford and Lincoln

Dorman 598-722 is a terminal junction block built to match the fit and function of the original electrical connector assembly on specified vehicles. It is made from quality materials for reliable performance in the electrical system of a 2003 Ford Expedition or 2003 Lincoln Navigator.

• Direct-fit junction block for specified applications
• Designed for 12V electrical systems
• Plastic base with metal terminals
• Blade and Aspa terminal types
• Cover included
• Specific fit for targeted vehicle applications
• Mounting hole quantity: 4
• Terminal quantity: 12

Detailed Product Overview

This Dorman junction block, part number 598-722, is engineered as a replacement for the original terminal junction block used on select 2003 Ford Expedition and 2003 Lincoln Navigator models. It supports 12V electrical layouts and uses a plastic base with metal terminals to maintain the original connection style. The covered design helps keep the junction area organized while preserving the factory-style fit expected in OE replacement electrical repairs. Cross-reference part numbers for the same application include 2L1Z14A068AA and 3L1Z14A068AA.

Common Repair Uses

• Restoring damaged or corroded junction block connections
• Replacing a cracked or heat-affected electrical connector housing
• Repairing intermittent power distribution issues at the junction block
• Addressing terminal wear, looseness, or poor contact in the electrical system

Installation Notes and Tips

Verify the vehicle application before installation. This part is a specific-fit component for 2003 Ford Expedition and 2003 Lincoln Navigator models, so connector style and mounting points should be matched to the original unit. Inspect adjacent wiring, terminals, and related connectors for heat damage or corrosion before transferring the new junction block into service.

Quality Assurance

Dorman designs this terminal junction block to match original fit and function on the listed vehicles, using quality materials for dependable electrical performance.