HomeEmission Control > SensorsSpectra MA291 Mass Air Flow Sensor
Part #: MA291

Spectra MA291 Mass Air Flow Sensor

⚙️ 16 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 and Lincoln, Expedition and Navigator
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Reliable Mass Air Flow Sensor for Ford Expedition and Lincoln Navigator

The Spectra MA291 Mass Air Flow Sensor is designed to provide accurate airflow measurement for Ford Expedition and Lincoln Navigator models. This sensor ensures optimal engine performance by delivering precise data to the vehicle’s engine control unit.

  • Direct replacement Mass Air Flow Sensor for Ford and Lincoln vehicles
  • Compatible with Ford Expedition and Lincoln Navigator models
  • Part number MA291 for easy identification and fitment
  • Measures the amount of air entering the engine for efficient fuel management
  • Durable construction to withstand engine bay conditions

Product Details and Compatibility

The Spectra MA291 Mass Air Flow Sensor is engineered to meet OEM specifications for emission control systems. It accurately measures the volume and density of air entering the engine, which is critical for maintaining the correct air-fuel ratio. This sensor is compatible with select Ford Expedition and Lincoln Navigator models, ensuring proper fit and function. Using the correct MA291 sensor helps maintain engine efficiency and reduces emissions by providing reliable data to the vehicle’s engine control module.

Common Applications and Problem Resolution

This Mass Air Flow Sensor is used to monitor airflow for proper engine operation. It addresses several common issues, including:

  • Engine hesitation or stalling during acceleration
  • Rough idling or inconsistent engine performance
  • Check Engine Light triggered by airflow sensor faults
  • Reduced fuel efficiency due to incorrect air-fuel mixture
  • Failed emissions tests related to air intake measurement

Installation Notes and Tips

Installation of the Spectra MA291 sensor requires basic mechanical skills and standard hand tools. Before installation, ensure the engine is cool and disconnect the battery to prevent electrical shorts. Remove the old sensor carefully to avoid damage to the intake system. Install the new MA291 sensor securely and reconnect all electrical connectors. After installation, it is recommended to clear any diagnostic trouble codes and perform a test drive to confirm proper operation.

Quality Assurance and Warranty Information

Spectra provides this MA291 Mass Air Flow Sensor with quality assurance to meet or exceed OEM standards. While specific warranty details may vary, Spectra parts typically include a limited warranty against defects in materials and workmanship. Using a genuine Spectra sensor helps maintain vehicle reliability and emission compliance for Ford Expedition and Lincoln Navigator owners.

This part fits 16 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2014FordExpedition5.4LV8N/A
2013FordExpedition5.4LV8N/A
2012FordExpedition5.4LV8N/A
2011FordExpedition5.4LV8N/A
2010FordExpedition5.4LV8N/A
2009FordExpedition5.4LV8N/A
2008FordExpedition5.4LV8N/A
2007FordExpedition5.4LV8N/A
2006FordExpedition5.4LV8N/A
2005FordExpedition5.4LV8N/A
2004FordExpedition5.4LV8N/AMass Air Flow Sensor with integrated housing
2004FordExpedition4.6LV8N/AMass Air Flow Sensor with integrated housing
2004LincolnNavigator5.4LV8N/AMass Air Flow Sensor with integrated housing
2003FordExpedition5.4LV8N/AMass Air Flow Sensor with integrated housing
2003FordExpedition4.6LV8N/AMass Air Flow Sensor with integrated housing
2003LincolnNavigator5.4LV8N/AMass Air Flow Sensor with integrated housing

* 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:

221047M221050M221050P221068M221074M24511982451265245213624521983L7Z12B579AA3L7Z12B579AARM3W3Z12B579AA3W3Z12B579AARM3W7Z12B579AA590635S27657450033869933917823AFLS149AFLS150AFLS176RMAFLS177RMMA1040MA1131MAF0043MAF0044MAF1164MAF69933MAS0167MAS0297MF21050MF21050NSU8755XTP450033

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