HomeHVAC > SensorsStandard Ignition AX479 HVAC Heater Core Temperature Sensor
Part #: AX479

Standard Ignition AX479 HVAC Heater Core Temperature Sensor

31 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$24.84Free 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: Ford and Lincoln, C-Max, Focus, Transit Connect, MKC, Fiesta, and Escape
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 HVAC Heater Core Temperature Sensor AX479

The Standard Ignition HVAC Heater Core Temperature Sensor AX479 is designed to provide accurate temperature readings for the heating and ventilation system in select Ford and Lincoln vehicles. This sensor ensures optimal climate control performance by monitoring heater core temperature and relaying data to the vehicle’s HVAC system.

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

Detailed Product Description

The AX479 heater core temperature sensor from Standard Ignition features a single rectangular female connector designed for a secure plug-in connection. It includes two male blade terminals that provide reliable electrical contact, ensuring consistent sensor performance. This sensor is engineered to fit specific Ford and Lincoln models, including the C-Max, Escape, Fiesta, Focus, MKC, and Transit Connect. Its precise temperature sensing capability helps regulate the HVAC system by monitoring the heater core temperature, which is critical for maintaining cabin comfort and system efficiency.

Compatible Vehicles and Applications

This HVAC heater core temperature sensor is compatible with various Ford and Lincoln vehicles, making it suitable for owners needing replacement parts for their climate control systems. Compatible models include:

  • Ford C-Max
  • Ford Escape
  • Ford Fiesta
  • Ford Focus
  • Lincoln MKC
  • Ford Transit Connect

Common Issues Addressed by the AX479 Sensor

  • Inaccurate cabin temperature readings
  • HVAC system failing to regulate heat properly
  • Intermittent or no heat output from heater core
  • HVAC blower running continuously or erratically
  • Check engine or HVAC system warning lights related to temperature sensor faults

Installation Notes and Tips

When installing the Standard Ignition AX479 sensor, ensure the vehicle is powered off and the HVAC system is cool to avoid injury. The rectangular female plug-in connector should be securely attached to the sensor’s terminals, which are male blade type. Verify the sensor is properly seated in the heater core housing to ensure accurate temperature readings. It is recommended to consult the vehicle’s service manual for specific removal and installation procedures to avoid damage to surrounding components.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications, providing reliable performance and durability. The AX479 heater core temperature sensor undergoes rigorous quality control testing to ensure consistent operation. This part typically includes a limited warranty covering defects in materials and workmanship, providing confidence in its long-term use within compatible Ford and Lincoln vehicles.

BrandStandard Ignition
Part NumberAX479
Connector GenderFemale
Connector ShapeRectangular
Connector TypePlug In
Terminal GenderMale
Terminal TypeBlade

This part fits 31 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2018FordC-MaxN/A
2018FordFocus2.3LL4N/A
2018FordTransit ConnectN/A
2018LincolnMKCN/A
2017FordC-MaxN/A
2017FordFiestaN/A
2017FordFocusN/A
2017FordTransit ConnectN/A
2017LincolnMKCN/A
2016FordC-MaxN/A
2016FordFiestaN/A
2016FordFocusN/A
2016FordTransit ConnectN/A
2016LincolnMKCN/A
2015FordC-MaxN/A
2015FordFiestaN/A
2015FordFocusN/A
2015FordTransit ConnectN/A
2015LincolnMKCN/A
2014FordC-MaxN/A
2014FordEscapeN/A
2014FordFiestaN/A
2014FordFocusN/A
2014FordTransit ConnectN/A
2013FordC-MaxN/A
2013FordEscapeN/A
2013FordFiestaN/A
2013FordFocusN/A
2012FordFiestaN/A
2012FordFocusN/A
2011FordFiestaN/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:

ATSA159BE8Z19C734ATS57606WT5915YH1771

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