Dorman 645-195 Headlight Socket

OE-Style Headlight Socket Replacement

This Dorman headlight socket is a direct replacement for the original equipment connector on select Ford and Lincoln applications. It matches the OE fit and terminal count, with corrosion-resistant contacts for dependable electrical connection in the headlamp circuit.

Built for vehicles using a 3-terminal, irregular-shape connector, this socket supports common headlight repairs on models such as the Ford Mustang, Ford F-250 Super Duty, Ford Expedition, and Lincoln Navigator. Part number 645-195 is a practical OE-style solution when the original socket is heat-damaged, brittle, or no longer making solid contact.

Key Features

• Direct replacement headlight socket from Dorman
• Matches original fit and terminal count
• 3-terminal design with irregular connector shape
• Corrosion-resistant contacts for stable electrical connection
• Brown/gray connector housing
• Bulb base type 4157
• Overall length: 2.54 in.
• Terminal material: plastic

Detailed Description

Dorman 645-195 is a replacement headlight socket designed to restore the connection between the vehicle harness and the headlamp bulb. It is built to match the original socket configuration, including the 3-pin terminal layout and connector shape, so it can be used on select Ford Mustang, Ford F-250 Super Duty, Ford F-350 Super Duty, Ford Expedition, Ford Explorer, Ford Explorer Sport Trac, Ford Fusion, Ford Taurus, and Lincoln Navigator applications. This part cross-references 1P2101 and 4F9Z13411A for the same application.

Common Repair Uses

• Repairing a melted or heat-damaged headlight socket
• Restoring intermittent headlamp operation caused by poor terminal contact
• Replacing a cracked, brittle, or broken OE connector
• Fixing corrosion-related electrical resistance at the bulb connection
• Addressing headlight wiring issues on Ford and Lincoln vehicles

Installation Notes and Tips

Verify the bulb base type and terminal count before installation. This socket does not include a wire harness or retainer, and it is not weather resistant. Confirm the connector shape and vehicle application against the original part before wiring the replacement into the headlight circuit. For fitment-specific searches, this part is commonly used on 2015-2021 Ford Mustang, 2011-2016 Ford F-250 Super Duty, and 2007-2014 Ford Expedition models.

Quality Assurance

Dorman manufactures this socket with quality materials and corrosion-resistant contacts to support reliable service in the lighting system. Part number 645-195 is built as an OE-style replacement for select Ford and Lincoln headlight repairs.