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  • PLAN STARTS: Plans start date of purchase. Coverage for mechanical breakdowns begins after the manufacturer's warranty expires.
  • COVERAGE DETAIL: 100% functional parts and labor included on products used for normal use, including mechanical and electrical failures, for parts purchased on Amazon within the last 30 days.
  • PLAN BENEFITS: $0 deductible and no hidden fees. Fully transferable if bought as a gift. Not valid on auto parts purchased for commercial use.
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  • HOW TO CANCEL: Cancel anytime, full refund within the first 30 days (less any claims paid). To cancel, visit "Your Orders" on Amazon.com and click "Return or Replace Item" next to the protection plan.

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Walker Products 245-1138 Mass Air Flow Sensor

3.7 out of 5 stars 64 ratings

Price: $39.09 & FREE Shipping. Details & FREE Returns
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    This fits your .
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  • Walker Products Mass Airflow ( MAF ) sensor measures the amount of air by weight through changing voltages or frequencies
  • MAF Sensor sends information collected to the onboard computer
  • The computer uses this and other inputs to calculate the correct amount of fuel delivered
  • Symptoms of failure MAF include poor starting, engine surging, engine stalling, a check engine light, and no-start conditions. Sensors are non-serviceable, replace sensors that are non-functional
  • OEM Part Number: 19748 86-50040 197-6040 214-4238 MAS0265 5S2954 74-50040 4M-1150 5S5635 SU7129 64-1826 MF21145 838-920 MA234 221145 64-1790 SU6401 917-816 AF10136
  • Fit type: Vehicle Specific
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Frequently bought together

  • Walker Products 245-1138 Mass Air Flow Sensor
  • +
  • YCT Oxygen O2 Sensor Downstream Fits 234-4732 For Subaru Impreza Forester Legacy Outback Baja Impreza WRX Saab 9-2X 2.0L 2.5L 3.0L
Total price: $62.08
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Customer Rating 3.7 out of 5 stars (64) 4.0 out of 5 stars (120) 3.1 out of 5 stars (25) 4.5 out of 5 stars (8) 4.2 out of 5 stars (181) 3.9 out of 5 stars (10)
Price $39.09 $39.87 $55.90 $54.82 $53.69 $70.96
Shipping FREE Shipping. Details FREE Shipping. Details FREE Shipping. Details FREE Shipping. Details FREE Shipping. Details FREE Shipping. Details
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Product description

Mass airflow sensors measure the amount of air by weight through changing voltages or frequencies and sends this information to the onboard computer. The computer uses this and other inputs to calculate the correct amount of fuel delivered. Symptoms of failure include poor starting, engine surging, engine stalling, a check engine light, and no-start conditions. Sensors are non-serviceable, replace sensors that are non-functional. Walker Products began supplying the fuel system needs of the automotive industry in 1946. Today Walker is one of the largest, privately owned manufacturers of fuel system components and engine sensors, and has served the needs of the worldwide automotive aftermarket. We are committed to supplying products manufactured to meet or exceed OEM standards and specifications. This effort is backed by our own manufacturing, product management and engineering staff to ensure it is maintained and accurate in the production of quality parts, vehicle applications, instruction sheets and technical support. Our products include Carburetor and Fuel Injection Repair Kits, Oxygen Sensors and other Engine Management products such as Throttle Position Sensors, Cam and Crankshaft Sensors, Fuel Injectors, Spark Plug Wires and Gaskets. As an ISO 9001: 2015/TS16949 certified company, we are committed to supplying the highest quality products. Vehicle Fitment: Jaguar Vanden Plas 2003-1999, XJ8 2003-1999, XK8 2002-1999, Mazda 3 2013-2007, 6 2006, CX-7 2012-2007, CX-9 2007, Saab 9-2X 2006-2005, Subaru B9 Tribeca 2007-2006, Baja 2006-2004, Forester 2008-2004, Impreza 2007-2002, Legacy 2009-2004, Outback 2009-2004, Tribeca 2014-2008


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3.7 out of 5 stars
3.7 out of 5
64 global ratings
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