HomeEmission Control > SensorsStandard Ignition MAS0345 Mass Air Flow Sensor
Part #: MAS0345

Standard Ignition MAS0345 Mass Air Flow Sensor

33 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$128.67Free 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, Bronco, E-150 Econoline, E-150 Econoline Club Wagon, F-250, E-250 Econoline, E-350 Econoline, E-350 Econoline Club Wagon, F-150, and F-350
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 MAS0345 Mass Air Flow Sensor

The Standard Ignition MAS0345 Mass Air Flow Sensor is designed for precise air measurement in select Ford vehicles. This sensor ensures accurate airflow data for optimal engine performance in models like the Ford Bronco and F-150.

  • Connector Gender: Female
  • Connector Quantity: 1
  • Connector Shape: Oval
  • Terminal Gender: Male
  • Terminal Quantity: 4
  • Terminal Type: Blade
  • Sensor only, no additional components included

Detailed Product Description

The MAS0345 Mass Air Flow Sensor from Standard Ignition is engineered to provide reliable airflow measurement for Ford vehicles including the Bronco, E-150 Econoline series, and F-Series trucks such as the F-150, F-250, and F-350. Featuring a single oval-shaped female connector with four male blade terminals, this sensor integrates seamlessly with the vehicle’s emission control system. The blade terminal design ensures secure electrical connections, minimizing the risk of signal loss or corrosion over time. This sensor-only unit is intended for direct replacement of the factory-installed mass air flow sensor, maintaining the integrity of your vehicle’s air intake monitoring.

Compatible Ford Models and Applications

This mass air flow sensor is compatible with a range of Ford vehicles, including:

  • Ford Bronco
  • Ford E-150 Econoline and E-150 Econoline Club Wagon
  • Ford E-250 Econoline
  • Ford E-350 Econoline and E-350 Econoline Club Wagon
  • Ford F-150
  • Ford F-250
  • Ford F-350

Common Issues Addressed by MAS0345 Sensor

  • Erratic engine idle or stalling
  • Reduced fuel efficiency due to inaccurate air measurement
  • Check Engine Light triggered by faulty airflow readings
  • Poor acceleration or hesitation during throttle response
  • Emission test failures related to air-fuel mixture imbalance

Installation Notes and Tips

  • Ensure the vehicle ignition is off before installation
  • Disconnect the battery to prevent electrical shorts
  • Carefully unplug the oval female connector from the old sensor
  • Verify the four male blade terminals align correctly with the connector
  • Secure the sensor firmly to avoid air leaks or sensor damage
  • After installation, clear any diagnostic trouble codes and test drive to confirm proper operation

Quality Assurance and Warranty

Standard Ignition manufactures the MAS0345 Mass Air Flow Sensor to meet OEM specifications for fit, form, and function. Each sensor undergoes rigorous testing to ensure durability and accurate performance. While specific warranty terms may vary, Standard Ignition typically offers a limited warranty covering defects in materials and workmanship. Refer to the product documentation or manufacturer for detailed warranty information.

BrandStandard Ignition
Part NumberMAS0345
Connector GenderFemale
Connector ShapeOval
NotesSensor Only
Terminal GenderMale
Terminal TypeBlade

This part fits 33 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1996FordBronco5.0LV8N/A
1996FordBronco5.8LV8N/A
1996FordE-150 Econoline5.0LV8N/A
1996FordE-150 Econoline Club Wagon5.0LV8N/A
1996FordF-1505.0LV8N/A
1996FordF-2505.0LV8N/A
1995FordBronco5.0LV8N/A
1995FordBronco5.8LV8N/A
1995FordE-150 Econoline4.9LL6N/A
1995FordE-150 Econoline5.0LV8N/A
1995FordE-150 Econoline Club Wagon5.0LV8N/A
1995FordE-150 Econoline Club Wagon5.8LV8N/A
1995FordE-250 Econoline4.9LL6N/A
1995FordE-250 Econoline5.8LV8N/A
1995FordE-350 Econoline4.9LL6N/A
1995FordE-350 Econoline5.8LV8N/A
1995FordE-350 Econoline Club Wagon4.9LL6N/A
1995FordE-350 Econoline Club Wagon5.8LV8N/A
1995FordF-1504.9LL6N/A
1995FordF-1505.0LV8N/A
1995FordF-1505.8LV8N/A
1995FordF-2505.0LV8N/A
1995FordF-2504.9LL6N/A
1995FordF-2505.8LV8N/AFits vehicles equipped with California emissions.
1995FordF-3505.8LV8N/AFits vehicles equipped with California emissions.
1994FordBronco5.0LV8N/A
1994FordE-150 Econoline4.9LL6N/A
1994FordE-150 Econoline5.0LV8N/A
1994FordE-150 Econoline Club Wagon4.9LL6N/A
1994FordF-1505.0LV8N/A
1994FordF-2505.0LV8N/A
1993FordE-150 Econoline5.0LV8N/A
1993FordE-150 Econoline Club Wagon5.0LV8N/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:

157-02652-14177245-11543MF15074-9519917-836AF10115DL-3059F4UZ12B579AMA1177MA167MF0409N

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