HomeEmission Control > SensorsStandard Ignition AX31 Engine Intake Manifold Temperature Sensor
Part #: AX31

Standard Ignition AX31 Engine Intake Manifold Temperature Sensor

283 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Ford, Lincoln, Mazda, and Mercury, F-150, F-250 Super Duty, F-350 Super Duty, Ranger, Navigator, E-150, E-150 Club Wagon, E-250, E-350 Club Wagon, E-350 Super Duty, Excursion, F-150 Heritage, Mustang, Thunderbird, Escort, Lobo, LS, B2300, E-150 Econoline, E-150 Econoline Club Wagon, E-250 Econoline, E-350 Econoline Club Wagon, Expedition, Blackwood, Continental, Cougar, Explorer, Explorer Sport Trac, B2500, Mountaineer, E-350 Econoline, B4000, Mystique, Contour, F-250, Taurus, B3000, Sable, Tracer, Mark VIII, and F-350
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Overview of Standard Ignition AX31 Intake Manifold Temperature Sensor

The Standard Ignition AX31 Engine Intake Manifold Temperature Sensor is designed for precise temperature monitoring in various Ford, Lincoln, Mazda, and Mercury vehicles. This sensor ensures accurate engine management by providing reliable intake air temperature data to the vehicle’s computer system.

  • Direct mounting type for secure installation
  • Black color with a rectangular female connector
  • Single port and connector for streamlined fitment
  • 12-volt operation compatible with OEM electrical systems
  • Blade-type male terminals with two terminals included
  • Plug-in attachment method for easy replacement

Detailed Product Description

The AX31 sensor from Standard Ignition is engineered to measure the temperature of the air entering the engine intake manifold. It features a plug-in attachment method with a rectangular female connector, designed to fit directly onto the intake manifold without the need for additional mounting brackets or hardware. The sensor’s black housing and compact design allow for straightforward integration into the engine bay. With two blade-type male terminals, it ensures a secure electrical connection compatible with 12-volt systems commonly found in Ford, Lincoln, Mazda, and Mercury vehicles.

Compatible Vehicles and Applications

This Engine Intake Manifold Temperature Sensor is compatible with a wide range of models, including Ford F-150, F-250, F-350, Explorer, Mustang, and Ranger; Lincoln Continental, Navigator, and Mark VIII; Mazda B2300, B2500, B3000, and B4000; as well as Mercury Cougar, Mountaineer, and Mystique. The part number AX31 is specifically designed to meet the requirements of these vehicles’ emission control systems.

Common Issues Addressed by the AX31 Sensor

  • Incorrect intake air temperature readings causing poor engine performance
  • Check engine light triggered by faulty temperature sensor signals
  • Reduced fuel efficiency due to inaccurate air-fuel mixture adjustments
  • Engine stalling or rough idling related to intake temperature sensor failure
  • Emission control system malfunctions linked to sensor inaccuracies

Installation Notes and Tips

Installation of the Standard Ignition AX31 sensor requires no additional hardware or mounting brackets, as it mounts directly to the intake manifold. Ensure the connector is fully seated and the blade terminals are clean and free of corrosion before installation. Disconnect the battery before replacing the sensor to avoid electrical shorts. Verify compatibility with your specific vehicle model and engine type prior to installation.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications, ensuring reliable performance and durability. While no hardware or wiring harness is included with this sensor, it is designed for straightforward replacement with factory connectors. Please consult the product documentation or manufacturer for warranty details related to the AX31 Engine Intake Manifold Temperature Sensor.

BrandStandard Ignition
Part NumberAX31
Attachment MethodPlug In
ColorBlack
Connector GenderFemale
Connector ShapeRectangular
Connector TypePlug In
Hardware IncludedNo
Mounting Bracket(s) IncludedNo
Mounting TypeDirect
Terminal GenderMale
Terminal TypeBlade
Voltage12
Wiring Harness IncludedNo

This part fits 283 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2008FordF-150N/A
2008FordF-250 Super Duty6.8LV10N/AOn Air Cleaner
2008FordF-250 Super Duty5.4LV8N/AOn Air Cleaner
2008FordF-350 Super Duty6.8LV10N/AOn Air Cleaner
2008FordF-350 Super Duty5.4LV8N/AOn Air Cleaner
2007FordF-150N/A
2007FordF-250 Super Duty6.8LV10N/AOn Air Cleaner
2007FordF-250 Super Duty5.4LV8N/AOn Air Cleaner
2007FordF-350 Super Duty6.8LV10N/AOn Air Cleaner
2007FordF-350 Super Duty5.4LV8N/AOn Air Cleaner
2006FordF-150N/A
2006FordF-250 Super Duty6.8LV10N/A
2006FordF-250 Super Duty5.4LV8N/A
2006FordF-350 Super Duty6.8LV10N/A
2006FordF-350 Super Duty5.4LV8N/A
2006FordRangerN/A
2006LincolnNavigatorN/A
2005FordF-150N/A
2005FordF-250 Super Duty6.8LV10N/A
2005FordF-250 Super Duty5.4LV8N/A
2005FordF-350 Super Duty6.8LV10N/A
2005FordF-350 Super Duty5.4LV8N/A
2005FordRangerN/A
2005LincolnNavigatorN/A
2004FordE-1505.4LV8N/A
2004FordE-1504.6LV8N/A
2004FordE-150 Club Wagon5.4LV8N/A
2004FordE-150 Club Wagon4.6LV8N/A
2004FordE-2504.6LV8N/A
2004FordE-2505.4LV8N/A
2004FordE-350 Club Wagon5.4LV8N/A
2004FordE-350 Super Duty5.4LV8N/A
2004FordE-350 Super Duty6.8LV10N/A
2004FordExcursion6.8LV10N/A
2004FordF-1504.2LV6N/A
2004FordF-1505.4LV8N/A
2004FordF-150 Heritage4.2LV6N/A
2004FordF-150 Heritage4.6LV8N/A
2004FordF-250 Super Duty5.4LV8N/A
2004FordF-250 Super Duty6.8LV10N/A
2004FordF-350 Super Duty6.8LV10N/A
2004FordF-350 Super Duty5.4LV8N/A
2004FordMustang4.6LV8N/A
2004FordRangerN/A
2004FordThunderbirdN/A
2004LincolnNavigatorN/A
2003FordE-1504.6LV8N/A
2003FordE-1505.4LV8N/A
2003FordE-150 Club Wagon5.4LV8N/A
2003FordE-150 Club Wagon4.6LV8N/A
2003FordE-2504.6LV8N/A
2003FordE-2505.4LV8N/A
2003FordE-350 Club Wagon5.4LV8N/A
2003FordE-350 Club Wagon7.3LV8N/AIntake Manifold Absolute Pressure Sensor (MAP)
2003FordE-350 Club Wagon6.8LV10N/A
2003FordE-350 Super Duty6.8LV10N/A
2003FordE-350 Super Duty5.4LV8N/A
2003FordEscortN/A
2003FordF-1504.2LV6N/A
2003FordF-1504.6LV8N/A
2003FordF-250 Super Duty6.8LV10N/A
2003FordF-250 Super Duty5.4LV8N/A
2003FordF-350 Super Duty6.8LV10N/A
2003FordF-350 Super Duty5.4LV8N/A
2003FordMustang4.6LV8N/A
2003FordRanger3.0LV6N/A
2003FordRanger4.0LV6N/A
2003FordThunderbirdN/A
2003LincolnLSN/A
2003LincolnNavigatorN/A
2003MazdaB2300N/A
2002FordE-150 Econoline5.4LV8N/A
2002FordE-150 Econoline4.6LV8N/A
2002FordE-150 Econoline Club Wagon5.4LV8N/A
2002FordE-150 Econoline Club Wagon4.6LV8N/A
2002FordE-250 Econoline5.4LV8N/A
2002FordE-350 Econoline Club Wagon5.4LV8N/A
2002FordE-350 Econoline Club Wagon6.8LV10N/A
2002FordE-350 Super Duty6.8LV10N/A
2002FordE-350 Super Duty5.4LV8N/A
2002FordEscortN/A
2002FordExpeditionN/A
2002FordF-1504.2LV6N/A
2002FordF-1504.6LV8N/A
2002FordF-250 Super Duty5.4LV8N/A
2002FordF-250 Super Duty6.8LV10N/A
2002FordF-350 Super Duty6.8LV10N/A
2002FordF-350 Super Duty5.4LV8N/A
2002FordMustang4.6LV8N/A
2002FordRanger3.0LV6N/A
2002FordThunderbirdN/A
2002LincolnBlackwoodN/A
2002LincolnContinentalN/A
2002LincolnLSN/A
2002LincolnNavigatorN/A
2002MazdaB2300N/A
2002MercuryCougar2.5LV6N/A
2001FordE-150 Econoline5.4LV8N/A
2001FordE-150 Econoline4.6LV8N/A
2001FordE-150 Econoline4.2LV6N/A
2001FordE-150 Econoline Club Wagon5.4LV8N/A
2001FordE-150 Econoline Club Wagon4.6LV8N/A
2001FordE-150 Econoline Club Wagon4.2LV6N/A
2001FordE-250 Econoline4.2LV6N/A
2001FordE-250 Econoline5.4LV8N/A
2001FordE-350 Econoline Club Wagon6.8LV10N/A
2001FordE-350 Econoline Club Wagon5.4LV8N/A
2001FordE-350 Super Duty6.8LV10N/A
2001FordE-350 Super Duty5.4LV8N/A
2001FordEscortN/A
2001FordExpeditionN/A
2001FordExplorer5.0LV8N/A
2001FordExplorer Sport TracN/A
2001FordF-1504.2LV6N/A
2001FordF-1504.6LV8N/A
2001FordF-250 Super Duty6.8LV10N/A
2001FordF-250 Super Duty5.4LV8N/A
2001FordF-350 Super Duty6.8LV10N/A
2001FordF-350 Super Duty5.4LV8N/A
2001FordMustang4.6LV8N/A
2001FordRanger3.0LV6N/A
2001LincolnContinentalN/A
2001LincolnLSN/A
2001LincolnNavigatorN/A
2001MazdaB2300N/A
2001MazdaB2500N/A
2001MercuryMountaineer5.0LV8N/A
2000FordE-150 Econoline4.2LV6N/A
2000FordE-150 Econoline5.4LV8N/A
2000FordE-150 Econoline4.6LV8N/A
2000FordE-150 Econoline Club Wagon4.2LV6N/A
2000FordE-150 Econoline Club Wagon4.6LV8N/A
2000FordE-150 Econoline Club Wagon5.4LV8N/A
2000FordE-250 Econoline4.2LV6N/A
2000FordE-250 Econoline5.4LV8N/A
2000FordE-350 Econoline5.4LV8N/A
2000FordE-350 Econoline Club Wagon5.4LV8N/A
2000FordE-350 Econoline Club Wagon6.8LV10N/A
2000FordE-350 Super Duty6.8LV10N/A
2000FordE-350 Super Duty5.4LV8N/A
2000FordEscortN/A
2000FordExpeditionN/A
2000FordExplorer5.0LV8N/A
2000FordF-1504.2LV6N/A
2000FordF-1504.6LV8N/A
2000FordF-250 Super Duty6.8LV10N/A
2000FordF-250 Super Duty5.4LV8N/A
2000FordF-350 Super Duty6.8LV10N/A
2000FordF-350 Super Duty5.4LV8N/A
2000FordMustangN/A
2000FordRanger3.0LV6N/A
2000LincolnContinentalN/A
2000LincolnLS3.0LV6N/A
2000LincolnLS3.9LV8N/A
2000LincolnNavigatorN/A
2000MazdaB2500N/A
2000MazdaB4000N/A
2000MercuryMountaineer5.0LV8N/A
2000MercuryMystique2.0LL4N/A
1999FordContour2.0LL4N/A
1999FordE-150 Econoline5.4LV8N/A
1999FordE-150 Econoline4.2LV6N/A
1999FordE-150 Econoline4.6LV8N/A
1999FordE-150 Econoline Club Wagon4.6LV8N/A
1999FordE-150 Econoline Club Wagon4.2LV6N/A
1999FordE-150 Econoline Club Wagon5.4LV8N/A
1999FordE-250 Econoline4.2LV6N/A
1999FordE-250 Econoline5.4LV8N/A
1999FordE-350 Econoline5.4LV8N/A
1999FordE-350 Econoline Club Wagon5.4LV8N/A
1999FordE-350 Econoline Club Wagon6.8LV10N/A
1999FordE-350 Super Duty6.8LV10N/A
1999FordE-350 Super Duty5.4LV8N/A
1999FordEscortN/A
1999FordExpeditionN/A
1999FordExplorer5.0LV8N/A
1999FordF-1504.6LV8N/A
1999FordF-1504.2LV6N/A
1999FordF-1505.4LV8N/AOn Air Cleaner
1999FordF-2505.4LV8N/AOn Air Cleaner
1999FordF-2504.6LV8N/AOn Air Cleaner
1999FordF-250 Super Duty6.8LV10N/A
1999FordF-250 Super Duty5.4LV8N/AOn Air Cleaner
1999FordF-350 Super Duty6.8LV10N/A
1999FordF-350 Super Duty5.4LV8N/AOn Air Cleaner
1999FordMustangN/A
1999FordRanger3.0LV6N/A
1999FordTaurus3.0LV6N/A
1999LincolnContinentalN/A
1999LincolnNavigatorN/A
1999MazdaB2500N/A
1999MazdaB3000N/A
1999MazdaB4000N/A
1999MercuryCougarN/A
1999MercuryMountaineer5.0LV8N/A
1999MercuryMystique2.0LL4N/A
1999MercurySableN/A
1999MercuryTracerN/A
1998FordContour2.0LL4N/A
1998FordE-150 Econoline4.2LV6N/A
1998FordE-150 Econoline4.6LV8N/A
1998FordE-150 Econoline5.4LV8N/A
1998FordE-150 Econoline Club Wagon4.6LV8N/A
1998FordE-150 Econoline Club Wagon4.2LV6N/A
1998FordE-150 Econoline Club Wagon5.4LV8N/A
1998FordE-250 Econoline5.4LV8N/A
1998FordE-250 Econoline4.2LV6N/A
1998FordE-350 Econoline6.8LV10N/A
1998FordE-350 Econoline5.4LV8N/A
1998FordE-350 Econoline Club Wagon7.3LV8N/ATo 1/12/98; On Intake Manifold
1998FordE-350 Econoline Club Wagon5.4LV8N/A
1998FordE-350 Econoline Club Wagon6.8LV10N/A
1998FordEscortN/A
1998FordExpeditionN/A
1998FordExplorer5.0LV8N/A
1998FordF-150N/A
1998FordF-250N/A
1998FordMustangN/A
1998FordRanger4.0LV6N/A
1998FordRanger3.0LV6N/A
1998FordTaurus3.0LV6N/A
1998LincolnContinentalN/A
1998LincolnMark VIIIN/APush-In Type
1998LincolnNavigatorN/A
1998MazdaB2500N/AOn Air Cleaner
1998MazdaB3000N/A
1998MazdaB4000N/A
1998MercuryMountaineer5.0LV8N/A
1998MercuryMystique2.0LL4N/A
1998MercurySableN/A
1998MercuryTracerN/A
1997FordE-150 Econoline5.4LV8N/A
1997FordE-150 Econoline4.2LV6N/A
1997FordE-150 Econoline4.6LV8N/A
1997FordE-150 Econoline Club Wagon5.4LV8N/A
1997FordE-150 Econoline Club Wagon4.2LV6N/A
1997FordE-150 Econoline Club Wagon4.6LV8N/A
1997FordE-250 Econoline4.2LV6N/A
1997FordE-250 Econoline5.4LV8N/A
1997FordE-350 Econoline6.8LV10N/A
1997FordE-350 Econoline5.4LV8N/A
1997FordE-350 Econoline Club Wagon6.8LV10N/A
1997FordE-350 Econoline Club Wagon5.4LV8N/A
1997FordEscortN/A
1997FordExpeditionN/A
1997FordExplorer5.0LV8N/A
1997FordF-1504.6LV8N/A
1997FordF-1504.2LV6N/A
1997FordF-1505.4LV8N/A
1997FordF-2504.6LV8N/A
1997FordF-2505.4LV8N/A
1997FordF-3507.5LV8N/A
1997FordMustangN/A
1997FordRanger3.0LV6N/A
1997FordTaurus3.0LV6N/A
1997FordThunderbird4.6LV8N/A
1997LincolnContinentalN/A
1997LincolnMark VIIIN/APush-In Type
1997MazdaB2300N/A
1997MazdaB3000N/A
1997MazdaB4000N/A
1997MercuryCougar4.6LV8N/A
1997MercuryMountaineerN/A
1997MercurySableN/A
1997MercuryTracerN/A
1996FordExplorer5.0LV8N/A
1996FordMustangN/A
1996FordRangerN/A
1996FordTaurus3.0LV6N/A
1996FordThunderbird4.6LV8N/A
1996LincolnContinentalN/A
1996LincolnMark VIIIN/A
1996MazdaB2300N/A
1996MazdaB3000N/A
1996MazdaB4000N/A
1996MercuryCougar4.6LV8N/A
1996MercurySableN/A
1995FordRangerN/A
1995LincolnContinentalN/A
1995LincolnMark VIIIN/A
1995MazdaB2300N/A
1995MazdaB3000N/A
1995MazdaB4000N/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:

12126139-10215-50332158-1424210-101650445S103972-450575875ATS16ATSA4DY735F57F12A697AATS10022TS4039TS4039SBWT3050ZZM218845

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