Standard Ignition AX73 Ambient Air Temperature Sensor

Ambient Air Temperature Sensor for Ford and Mercury

Standard Ignition AX73 is an ambient air temperature sensor built for direct-fit service on select Ford and Mercury applications. It uses a screw-in attachment, a round plug-in connector, and a black housing to support clean replacement on vehicles such as the Ford Explorer Sport Trac, Ford F-250 Super Duty, Ford F-350 Super Duty, and Mercury Mountaineer.

Key Features

• Screw-in attachment method for secure mounting
• Round, female plug-in connector with 1 connector and 2 male bullet terminals
• Black sensor housing
• Sensor only; wiring harness not included
• No mounting bracket included
• Built with high-grade materials for precision sensor performance

Detailed Description

The Standard Ignition AX73 ambient air temperature sensor is engineered for accurate outside air temperature input to the HVAC system and related vehicle controls. Standard Ignition focuses on quality materials and construction, with sensor elements developed to deliver consistent performance and long service life. This part cross-references Dorman - HELP 76007 for the same application. It also aligns with interchange numbers including 5S1143 and TS5047. For fitment-specific searches, this part is commonly selected for Ford F-250 Super Duty ambient air temperature sensor replacement, Ford F-350 Super Duty outside temperature sensor service, and Mercury Mountaineer HVAC sensor repair.

Common Issues This Part Can Address

• Incorrect outside temperature display
• HVAC temperature readings that do not match ambient conditions
• Faulty sensor signal affecting climate control operation
• Damaged or worn ambient air temperature sensor housing
• Replacement needs after connector or terminal wear

Installation Notes and Tips

Verify connector style, terminal layout, and screw-in mounting before installation. Inspect the mating connector and wiring for corrosion or damage, and confirm the sensor seats properly in the original location. This part is a direct replacement style sensor for select 1998-2005 Ford and Mercury vehicles, including 2001-2005 Ford Explorer Sport Trac, 1999-2004 Ford F-250 Super Duty, 1999-2004 Ford F-350 Super Duty, 1998-2001 Mercury Mountaineer, and 1999 Ford F-250.

Quality Assurance

Standard Ignition manufactures this sensor with high-grade materials and a focus on precision performance for professional installation confidence. The AX73 is built to support reliable ambient air temperature sensing in demanding automotive service conditions.