Dorman 645-151 Engine Coolant Temperature Sensor Connector

Engine Coolant Temperature Sensor Connector for Ford and Lincoln

Dorman 645-151 is a female engine coolant temperature sensor connector built for electrical repairs and accessory installations where a secure 2-cavity blade-style connection is needed. It supports quick circuit disconnection for service and is engineered for dependable performance in demanding underhood conditions.

• Female connector with 2 terminals and 2-wire layout
• Black housing with rectangular shape for a direct-style electrical repair
• 14-gauge wiring harness length: 11
• Blade terminal type for sensor and harness connections
• Used on Ford, Lincoln, and Mercury applications with 2-cavity male sensor plugs

Detailed Product Overview

This Dorman 645-151 pigtail connector is a practical replacement for damaged, heat-affected, or corroded coolant sensor wiring. It is commonly used on Ford F-250 Super Duty, Ford F-350 Super Duty, Ford Escape, Ford Explorer, Ford Mustang, Lincoln Navigator, and other Ford and Lincoln models listed in the fitment data. This part cross-references Standard Ignition S-2034 for the same application.

Built as a female connector with blade terminals, this engine coolant temperature sensor connector helps restore a stable electrical interface at the sensor. It is also used in related engine management locations such as turbocharger boost pressure and charge air cooler temperature sensor connections on select Ford Fusion applications.

Common Problems This Connector Can Address

• Broken or brittle coolant temperature sensor connector housing
• Intermittent sensor signal caused by loose or corroded terminals
• Heat damage at the engine harness connector
• Service issues when the original plug no longer locks securely
• Electrical repair needs on Ford and Lincoln sensor circuits

Installation Notes and Tips

Verify the vehicle uses a 2-cavity male sensor connector before installation. Match the terminal style, wire gauge, and connector shape to the original harness connection. For best results, inspect the mating sensor pins for corrosion or damage before splicing the pigtail into the harness.

Compatible With 1994-2020 Ford and Lincoln applications listed in the fitment data, including Ford F-150, Ford Ranger, Ford Focus, Ford Taurus, Lincoln MKZ, and Lincoln Navigator. Dorman 645-151 is also listed for select Mercury models such as Mariner, Milan, Mountaineer, and Sable.

Quality Assurance

Dorman manufactures this connector as a durable electrical repair component for reliable service in automotive cooling and sensor circuits. The design supports consistent circuit connection and service disconnects for maintenance work.