HomeHVAC > SensorsStandard Ignition AX274 Ambient Air Temperature Sensor
Part #: AX274

Standard Ignition AX274 Ambient Air Temperature Sensor

15 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$75.40Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Subaru, Impreza, Outback, and Legacy
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Standard Ignition AX274 Ambient Air Temperature Sensor

The Standard Ignition AX274 Ambient Air Temperature Sensor is designed for precise temperature monitoring in Subaru vehicles. Compatible with Subaru Impreza, Legacy, and Outback models, this sensor ensures accurate ambient air temperature readings essential for HVAC system performance.

  • Push-on attachment method for secure installation
  • Black color finish for durability and corrosion resistance
  • Female connector with one plug-in connection
  • Connector shapes include round and square for versatile fit
  • Two male blade terminals for reliable electrical contact
  • Sensor only; no mounting brackets or wiring harness included

Detailed Product Description

The AX274 Ambient Air Temperature Sensor by Standard Ignition is engineered to provide accurate ambient temperature data to the HVAC system in Subaru Impreza, Legacy, and Outback vehicles. Featuring a push-on attachment method, this sensor installs easily without additional mounting hardware. The black finish offers protection against environmental factors, while the female connector with a single plug-in connection ensures compatibility with the vehicle’s wiring harness. The sensor’s connector design includes both round and square shapes, accommodating various OEM connector configurations. Two male blade terminals provide a secure and stable electrical connection, critical for consistent sensor performance.

Common Applications and Problem Resolution

  • Restores accurate ambient air temperature readings for climate control systems
  • Resolves HVAC issues related to incorrect temperature sensor data
  • Eliminates erratic or fluctuating temperature gauge readings
  • Prevents HVAC system malfunctions caused by faulty sensor input
  • Supports proper engine management by providing ambient temperature data

Installation Notes and Tips

Installation of the Standard Ignition AX274 sensor requires no mounting brackets, as it uses a push-on attachment method. Ensure the connector is fully seated and locked to prevent disconnection. Since the wiring harness is not included, verify the existing harness is in good condition before installation. Handle the sensor carefully to avoid damage to the terminals or connector. It is recommended to disconnect the vehicle battery before installation to prevent electrical shorts.

Quality Assurance and Warranty

Standard Ignition manufactures the AX274 sensor to meet or exceed OEM specifications for fit, form, and function. This part undergoes rigorous quality control to ensure reliable performance in Subaru Impreza, Legacy, and Outback models. Warranty coverage details should be confirmed with the product documentation or supplier, as it may vary by region.

BrandStandard Ignition
Part NumberAX274
Attachment MethodPush On
ColorBlack
Connector GenderFemale
Connector ShapeRound, Square
Connector TypePlug In
ContentsSensor
Mounting Bracket(s) IncludedNo
Terminal GenderMale
Terminal TypeBlade
Wiring Harness IncludedNo

This part fits 15 vehicles. Search below:

YearMakeModelPositionNotes
2007SubaruImprezaN/A
2006SubaruImprezaN/A
2005SubaruImprezaN/A
2005SubaruOutbackN/A
2004SubaruImprezaN/A
2004SubaruOutbackN/A
2003SubaruImprezaN/A
2003SubaruLegacyN/A
2003SubaruOutbackN/A
2002SubaruImprezaN/A
2002SubaruLegacyN/A
2002SubaruOutbackN/A
2001SubaruImprezaN/A
2001SubaruOutbackN/A
2000SubaruOutbackN/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:

5S1184772-498673730FE01076005ATSA106TS57401WT5710

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