Standard Ignition AX433 HVAC Heater Core Temperature Sensor

Brand Standard Ignition AX433
Connector Gender Female
Connector Shape Rectangular
Connector Type Plug In
Contents Sensor
Terminal Gender Male
Terminal Type Blade
Fits Mazda · 18 vehicles

Plug-in connector. Rectangular female connector for a straightforward electrical connection.

Blade terminals. Two male blade terminals provide a secure sensor interface.

HVAC sensor. Monitors heater core temperature as part of the climate system.

Cross-references Standard Ignition AX433, ATSA353 and KD4561J22 for the same application. See all 5.

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HVAC Heater Core Temperature Sensor for Mazda

Standard Ignition AX433 is an HVAC heater core temperature sensor built for direct-fit service in select Mazda applications. It uses a female rectangular plug-in connector with two male blade terminals to support accurate temperature sensing in the heater core circuit.

Key Features

  • HVAC heater core temperature sensor for climate control system monitoring
  • Female rectangular connector with plug-in connection style
  • 2 male blade terminals for secure electrical contact
  • Sensor-only contents for replacement of the failed temperature input component
  • Fits 2014-2019 Mazda 6, 2014-2018 Mazda 3, 2016-2017 Mazda CX-3, and 2013-2017 Mazda CX-5

Detailed Description

Standard Ignition AX433 is a replacement HVAC heater core temperature sensor used to monitor heater core temperature and relay that information to the vehicle’s climate control system. This part number is listed for Mazda 6, Mazda 3, Mazda CX-3, and Mazda CX-5 applications across the 2013-2019 model years, making it a practical choice when servicing temperature-sensing faults in the HVAC system. This part cross-references ATSA353 and KD4561J22 for the same application.

What It Helps Address

  • Inaccurate heater core temperature readings
  • HVAC temperature control that does not respond correctly
  • Climate output that is too hot or too cold
  • Fault codes related to heater core temperature sensing
  • Intermittent HVAC performance caused by a failing sensor

Installation Notes and Tips

Verify connector style, terminal layout, and vehicle application before installation. Standard Ignition AX433 uses a female rectangular plug-in connector with two male blade terminals, so the replacement should match the original sensor connection exactly. Confirm fitment for your specific Mazda 6, Mazda 3, CX-3, or CX-5 model year before service.

Quality Assurance

Standard Ignition is a recognized aftermarket source for electrical and engine management components. AX433 is built as a service replacement sensor for the listed Mazda applications and is intended to restore proper HVAC temperature signal input when the original unit has failed.

This part fits 18 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2019Mazda6N/A—
2018Mazda3N/A—
2018Mazda6N/A—
2017Mazda3N/A—
2017Mazda6N/A—
2017MazdaCX-3N/A—
2017MazdaCX-5N/A—
2016Mazda3N/A—
2016Mazda6N/A—
2016MazdaCX-3N/A—
2016MazdaCX-5N/A—
2015Mazda3N/A—
2015Mazda6N/A—
2015MazdaCX-5N/A—
2014Mazda3N/A—
2014Mazda6N/A—
2014MazdaCX-5N/A—
2013MazdaCX-5N/A—
Directly replaces or cross-references 5 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Standard Ignition — AX433ATSA353KD4561J22TS57560WT5869