Standard Ignition AX274 Ambient Air Temperature Sensor

Ambient Air Temperature Sensor for Subaru Applications

Standard Ignition AX274 is an ambient air temperature sensor built for direct replacement in select Subaru vehicles. It uses a plug-in connector with a female connector body, male blade terminals, and a black finish for a clean OE-style fit.

Compatible With 2000-2007 Subaru Impreza, 2000-2005 Subaru Outback, and 2002-2003 Subaru Legacy. This Standard Ignition AX274 sensor is a focused replacement for vehicles that need accurate outside air temperature input for HVAC and display functions.

Key Features

• Ambient air temperature sensor for HVAC-related temperature sensing
• Push-on attachment method for straightforward mounting
• Plug-in connector design with 1 female connector
• Round and square connector shape profile
• Black color/finish for OE-style appearance
• Male blade terminals with 2 terminal contacts
• Sensor only; wiring harness not included
• No mounting bracket included

Detailed Description

The Standard Ignition AX274 ambient air temperature sensor is engineered for Subaru Impreza, Subaru Outback, and Subaru Legacy applications that rely on an exterior temperature signal for HVAC operation and temperature display accuracy. The sensor uses a push-on attachment method and a plug-in electrical connection, making it a practical replacement when the original sensor is damaged, corroded, or no longer reporting correctly. This part cross-references Subaru OE-style numbers such as 73730FE010 and SU13300 for the same application.

For fitment-based searches, this part is commonly selected as an ambient air temperature sensor for 2001-2007 Subaru Impreza, 2000-2005 Subaru Outback, and 2002-2003 Subaru Legacy. Standard Ignition AX274 is also referenced by aftermarket part number WT5710 for related applications.

Common Issues This Part May Solve

• Incorrect outside temperature readings on the dash or climate display
• HVAC temperature input errors caused by a failed ambient sensor
• Intermittent or unstable ambient air temperature readings
• Corrosion or damage at the original sensor connector
• Replacement needs after sensor housing wear or impact damage

Installation Notes and Tips

Verify connector shape, terminal style, and vehicle fitment before installation. The AX274 uses a female connector with male blade terminals, so the mating connector should match the OE configuration. Inspect the mounting location for debris, corrosion, or broken retainers before installing the new sensor. Because no wiring harness or mounting bracket is included, reuse the existing vehicle hardware where applicable.

Quality Assurance

Standard Ignition supplies replacement electrical components for service applications, and AX274 is built to match the listed connector and mounting style for the confirmed Subaru fitments.