HomeHVAC > SensorsStandard Ignition AX329 HVAC Heater Core Temperature Sensor
Part #: AX329

Standard Ignition AX329 HVAC Heater Core Temperature Sensor

⚙️ 6 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Ford, F-150 and F-150 Heritage
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Overview of Standard Ignition HVAC Heater Core Temperature Sensor AX329

The Standard Ignition HVAC Heater Core Temperature Sensor AX329 is designed specifically for Ford F-150 and F-150 Heritage models. This sensor plays a critical role in monitoring the temperature of the heater core to ensure optimal HVAC system performance.

  • Connector Gender: Female
  • Connector Quantity: 1
  • Connector Shape: Rectangular
  • Connector Type: Plug in
  • Terminal Gender: Male
  • Terminal Quantity: 2
  • Terminal Type: Blade
  • Contents: Sensor only

Detailed Product Description

The AX329 HVAC Heater Core Temperature Sensor from Standard Ignition features a female rectangular plug-in connector with a single connection point, ensuring a secure and reliable electrical interface. It includes two male blade terminals that provide stable contact and efficient signal transmission. This sensor is engineered to accurately measure the temperature of the heater core, allowing the HVAC system to regulate cabin heating effectively. Compatible with Ford F-150 and F-150 Heritage models, this sensor meets OEM specifications for fit and function.

Common Applications and Issues Addressed

  • Helps maintain accurate cabin temperature control in Ford F-150 HVAC systems
  • Prevents heater core overheating by providing precise temperature feedback
  • Resolves HVAC system faults related to incorrect temperature readings
  • Addresses inconsistent heating performance or fluctuating cabin temperatures
  • Supports proper operation of climate control modules dependent on heater core data

Installation Notes and Tips

  • Ensure the vehicle is turned off and cooled down before sensor replacement
  • Disconnect the battery to prevent electrical shorts during installation
  • Locate the heater core temperature sensor in the HVAC housing as per Ford F-150 service manual
  • Carefully unplug the female rectangular connector and remove the old sensor
  • Install the new AX329 sensor by aligning the plug-in connector and securing the blade terminals
  • Verify proper connection and test HVAC system operation after installation

Quality Assurance and Warranty

Standard Ignition manufactures the AX329 sensor to meet strict quality standards, ensuring reliable performance and durability. This part is backed by a limited warranty against defects in materials and workmanship, providing confidence in its long-term operation within Ford F-150 and F-150 Heritage HVAC systems.

BrandStandard Ignition
Part NumberAX329
Connector GenderFemale
Connector ShapeRectangular
Connector TypePlug In
ContentsSensor
Terminal GenderMale
Terminal TypeBlade

This part fits 6 vehicles. Search below:

YearMakeModelPositionNotes
2008FordF-150N/AFuel Injection Pressure Damper
2007FordF-150N/AFuel Injection Pressure Damper
2006FordF-150N/AFuel Injection Pressure Damper
2005FordF-150N/AFuel Injection Pressure Damper
2004FordF-150N/AFuel Injection Pressure Damper
2004FordF-150 HeritageN/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:

4L3Z19C734AA5S729372-481476566ATSB10015TS57456WT5765

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