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Brand
Walker Products
Item Dimensions LxWxH
8 x 6 x 5 inches
Item Weight
0.17 Pounds


Product Features

Walker Products Mass airflow sensors ( MAF ) 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. Walker Products began supplying the fuel system needs of the automotive industry in 1946.

More about the Mass Air Flow (MAF) Sensor

The Mass Air Flow Sensors are constructed with the strictest standards for quality and up-to-date technology. MAF Sensors are made with reliable and dependable materials to deliver consistent and reliable engine Performance in extreme temperatures. Direct replacement will restore your air intake system to optimal mass airflow sensor performance.

Common Problem

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.

Vehicle Fit ment:

Acura ILX 2015-2013, Acura MDX 2017-2007, Acura RDX 2017-2007, Acura RL 2012-2009, Acura RLX 2017-2014, Acura TL 2014-2009, Acura TLX 2017-2015, Acura TSX 2014-2010, Acura ZDX 2013-2010, Honda Accord 2017-2005, Honda Accord Crosstour 2011-2010, Honda Civic 2015-2006, Honda Crosstour 2015-2012, Honda CR-Z 2016-2011, Honda Fit 2013-2009, Honda Fit 2017-2015, Honda HR-V 2017-2016, Honda Insight 2014-2010, Honda Odyssey 2017-2007, Honda Pilot 2017-2009, Honda Ridgeline 2014-2009, Honda Ridgeline 2017

Features & details

Features

  • 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

Product information

    Additional Information

  • ASIN: B00YWCV9TS
  • Customer Reviews: 3.9 out of 5 stars 103Reviews
  • Best Sellers Rank:
    #87,144 in Automotive (See Top 100 in Automotive)
    #86 in Automotive Replacement Mass Air Flow Sensors
  • Date First Available: June 4, 2015
Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.
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Q: Will this work on a 2004 jagaur xjr?

A: Hi Jorge:
No, 245-1138 does not fit a 2004 Jaguar XJR, it fits Mazda and Saab vehicles.

Manufacturer Keith Walker | 3 years ago

Q: Works for Mazda CX-7 2007 grand touring?

A: Hi Cristian:
Yes, 245-1138 does fit your 2007 Mazda CX7 2.3L Turbocharged.

Manufacturer Keith Walker | 2 years ago

Q: will this fit a 1999 jaguar XK8

A: Hello,
Walker Products 245-1138 will work on the 99 Jaguar XK8.

Seller Wilson Automotive Warehouse | 4 years ago

Q: will this work for an 2002 subi wrx 2.0lit

A: Hi Nick:
Yes, 245-1138 fits a 2002 Subaru WRX, 2.0L.

Manufacturer Keith Walker | 3 years ago

Customer reviews

3.9 out of 53.9 out of 5
103 global ratings

Reviews with images

Top reviews from the United States

Amazon Customer
1.0 out of 5 starsVerified Purchase
Don''t waste your money buying cheap
Reviewed in the United States on January 18, 2019
The two mounting holes didn''t quite align to my 2005 Subaru (had to shave one larger about a mm) but it seemed to work great after that... For a month. Installed on December 1, started feeling strange power fluctuations just after the new year that got progressively worse... See more
The two mounting holes didn''t quite align to my 2005 Subaru (had to shave one larger about a mm) but it seemed to work great after that... For a month. Installed on December 1, started feeling strange power fluctuations just after the new year that got progressively worse to the point where the car was nearly stalling out at random times by mid-January.

Replacing this piece of garbage with a higher quality sensor has solved the problem.
2 people found this helpful
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Kevin c.
5.0 out of 5 starsVerified Purchase
Excellent product, excellent value
Reviewed in the United States on May 15, 2017
Bought this for a 2005 legacy gt, just what I needed. Very pleased with the quality. Product came with new screws and a bit to perfectly guide them in. This is a very thoughtful addition on behalf of Walker, because the size of the screws combined with ambient engine bay... See more
Bought this for a 2005 legacy gt, just what I needed. Very pleased with the quality. Product came with new screws and a bit to perfectly guide them in. This is a very thoughtful addition on behalf of Walker, because the size of the screws combined with ambient engine bay heating and cooling makes them more prone to stripping if you attempt to reuse.
Excellent product, excellent value. Don''t spend your money on overpriced competitors.
4 people found this helpful
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Lilly
1.0 out of 5 starsVerified Purchase
Garbage product.
Reviewed in the United States on June 19, 2020
There is no possible way that the product was factories tested before selling it. Plugged it in drove less than 30 mi and the check engine light came back on saying that the car was running too lean. I had my mechanic check it out and reconfirm that the mass air flow... See more
There is no possible way that the product was factories tested before selling it. Plugged it in drove less than 30 mi and the check engine light came back on saying that the car was running too lean. I had my mechanic check it out and reconfirm that the mass air flow sensor by Walker is a piece of garbage. I had no codes prior to the mass air flow sensor code. I put my old one back into confirm and the codes came up different. I would not buy this product again. maybe one day they will make a quality product that they actually test before selling.
One person found this helpful
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Bob F.
5.0 out of 5 starsVerified Purchase
So far no problem
Reviewed in the United States on November 8, 2018
So far this maf is working fine, fits as good as the original sensor and for the price it''s worth trying. If I have any issues with it I will update the review later. Got this for a 2005 Baja Turbo that has been suffering random rich/lean fuel swings. One time... See more
So far this maf is working fine, fits as good as the original sensor and for the price it''s worth trying. If I have any issues with it I will update the review later.

Got this for a 2005 Baja Turbo that has been suffering random rich/lean fuel swings. One time last week it died out while driving on the freeway running way to rich and backfiring, then ran fine again a minute later. Has no engine codes but could likely be failing maf or O2 sensor. Had a maf fail in another subaru and it took along time of running poorly before it finally set a code for maf performance.
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EvilBastard
1.0 out of 5 starsVerified Purchase
Couldn''t start car after; threw check engine light.
Reviewed in the United States on August 15, 2021
The device made my car run worse. It pushed up my car''s LTFT, both engine banks, to a constant 20. Then, after I shut the car off, I couldn''t restart it--it would crank over and over and also sputter--and it threw a check engine light. I put the old one back, reset my ECU... See more
The device made my car run worse. It pushed up my car''s LTFT, both engine banks, to a constant 20. Then, after I shut the car off, I couldn''t restart it--it would crank over and over and also sputter--and it threw a check engine light. I put the old one back, reset my ECU via disconnecting the battery, reconnected that battery, and those problems vanished.
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Amazon Customer
1.0 out of 5 starsVerified Purchase
Returned
Reviewed in the United States on May 18, 2019
Seems to work ok, but still gives a code. It seems like half of that sensor does not work, and that half is the air temperature monitoring part. Returned and got Denso, no more codes.
2 people found this helpful
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xAgyex
5.0 out of 5 starsVerified Purchase
Good product. But didn''t resolved my minor loss of power in my 2005 Subaru Legacy GT. Basically worked just like my old one.
Reviewed in the United States on September 24, 2017
Didn''t resolve my minor loss of power in my 2005 Subaru Legacy GT. Basically worked just like my old one so I cant say this is a bad product. Update June 2018: So a little over a year after purchase, this part failed. Still, think its worth it as the OEM is $190,... See more
Didn''t resolve my minor loss of power in my 2005 Subaru Legacy GT. Basically worked just like my old one so I cant say this is a bad product.

Update June 2018: So a little over a year after purchase, this part failed. Still, think its worth it as the OEM is $190, so I can buy this 4 more times before it comes close that price. My OEM one failed after 2 years before I purchased this one.
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JR
5.0 out of 5 starsVerified Purchase
Fits and runs like a charm on a 2007 Mazda CX-7
Reviewed in the United States on May 15, 2017
Fits and runs like a charm on a 2007 Mazda CX-7. Well packaged (side note: with label made in America. Indeed, apparently made in Southern California), shipped expeditiously (ordered Saturday night, received Sunday afternoon on a 1-day delivery), and feels good (nice seal... See more
Fits and runs like a charm on a 2007 Mazda CX-7. Well packaged (side note: with label made in America. Indeed, apparently made in Southern California), shipped expeditiously (ordered Saturday night, received Sunday afternoon on a 1-day delivery), and feels good (nice seal that felt good when fastening it). Came with good screws. This has to be the easiest repair on a car (3 mins from start to finish...)
Two days already running and happy to no longer have a check engine light on!
2 people found this helpful
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