HomeHVAC > SensorsStandard Ignition AX73 Ambient Air Temperature Sensor
Part #: AX73

Standard Ignition AX73 Ambient Air Temperature Sensor

22 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Ford and Mercury, Explorer Sport Trac, F-250 Super Duty, F-350 Super Duty, Mountaineer, and F-250
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Overview of Standard Ignition AX73 Ambient Air Temperature Sensor

The Standard Ignition AX73 Ambient Air Temperature Sensor is designed for precise temperature readings in Ford and Mercury vehicles. This sensor ensures accurate ambient air temperature data for HVAC systems in models like the Ford F-250 Super Duty and Mercury Mountaineer.

  • Screw-in attachment method for secure installation
  • Black sensor housing with a single female round plug-in connector
  • Equipped with two male bullet terminals for reliable electrical connection
  • Compatible with Ford Explorer Sport Trac, F-250, F-250 Super Duty, F-350 Super Duty, and Mercury Mountaineer
  • Does not include mounting brackets or wiring harness

Detailed Product Description

The AX73 Ambient Air Temperature Sensor by Standard Ignition is engineered to provide accurate ambient temperature readings critical for HVAC system performance. Featuring a screw-in attachment method, this black sensor is easy to install and maintain. It includes a single female round plug-in connector that interfaces with two male bullet terminals, ensuring a stable and secure electrical connection. The sensor is designed specifically for select Ford and Mercury models, including the Explorer Sport Trac, F-250, F-250 Super Duty, F-350 Super Duty, and Mountaineer, making it a precise replacement part for these vehicles.

Common Applications and Issues Addressed

  • Restores accurate ambient air temperature readings for HVAC climate control
  • Resolves HVAC system malfunctions related to faulty temperature sensing
  • Eliminates incorrect temperature display on dashboard or climate control units
  • Prevents improper air conditioning or heating cycles caused by sensor failure
  • Helps maintain optimal engine performance by providing accurate environmental data

Installation Notes and Tips

Installation of the Standard Ignition AX73 sensor requires a screw-in method, ensuring a firm fit in the designated sensor port. The sensor’s female round plug-in connector should be carefully aligned with the vehicle’s wiring harness male bullet terminals. Note that this product does not include a mounting bracket or wiring harness, so verify existing components before installation. Proper handling of terminals during connection will prevent damage and ensure reliable sensor operation.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications for fit, form, and function. The AX73 Ambient Air Temperature Sensor undergoes rigorous quality control to ensure durability and performance in demanding automotive environments. Warranty coverage details should be confirmed with the product documentation or supplier, as they may vary.

BrandStandard Ignition
Part NumberAX73
Attachment MethodScrew-in
ColorBlack
Connector GenderFemale
Connector ShapeRound
Connector TypePlug In
ContentsSensor
Mounting Bracket(s) IncludedNo
Terminal GenderMale
Terminal TypeBullet
Wiring Harness IncludedNo

This part fits 22 vehicles. Search below:

YearMakeModelPositionNotes
2005FordExplorer Sport TracN/A
2004FordExplorer Sport TracN/A
2004FordF-250 Super DutyN/A
2004FordF-350 Super DutyN/A
2003FordExplorer Sport TracN/A
2003FordF-250 Super DutyN/A
2003FordF-350 Super DutyN/A
2002FordExplorer Sport TracN/A
2002FordF-250 Super DutyN/A
2002FordF-350 Super DutyN/A
2001FordExplorer Sport TracN/A
2001FordF-250 Super DutyN/A
2001FordF-350 Super DutyN/A
2001MercuryMountaineerN/A
2000FordF-250 Super DutyN/A
2000FordF-350 Super DutyN/A
2000MercuryMountaineerN/A
1999FordF-250N/A
1999FordF-250 Super DutyN/A
1999FordF-350 Super DutyN/A
1999MercuryMountaineerN/A
1998MercuryMountaineerN/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

139-10715-503225S114372-462576007ATSA64DY841F87Z12647AATS5047WT3098

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.