







⚡ Upgrade your ride with precision airflow — because your engine deserves the best!
The Denso 197-6030 Mass Air Flow Sensor is a high-precision, OEM-quality replacement part designed for exact fit and reliable performance. With ±3% measurement accuracy and a compact, lightweight design, it optimizes your vehicle’s air-fuel ratio to improve fuel efficiency and engine responsiveness. Trusted by Toyota and backed by thousands of positive reviews, this sensor offers an easy installation process and a cost-effective alternative to expensive dealer parts.


| ASIN | B004J32T3U |
| Best Sellers Rank | #52,365 in Automotive ( See Top 100 in Automotive ) #53 in Automotive Replacement Mass Air Flow Sensors |
| Brand | Denso |
| Brand Name | Denso |
| Customer Reviews | 4.5 out of 5 stars 951 Reviews |
| Global Trade Identification Number | 00042511175747 |
| Included Components | Air Flow Sensor |
| Item Type Name | Air Flow Sensor |
| Manufacturer | Denso |
| Measurement Accuracy | ±3% |
| Model | 197-6030 |
| Mounting Type | Surface Mount |
| Output Type | NPN, PNP, Push-Pull |
| Specific Uses For Product | Air Flow Sensor |
| Style | Modern |
| Style Name | Modern |
| UPC | 042511175747 |
| Warranty Description | Includes manufacturer provided warranty |
M**K
Denso is basically the same thing as buying from Toyota, save money this way
Bought this for my '04 Camry V6. Fit like a glove, solved my issue (was getting alternating "running lean/rich" check engine codes, even after replacing the O2 sensors). Denso is the OEM for a lot of Toyota parts - these are basically EXACT FIT. Very easy to install. MAF Is located right on the top of your engine near the air filter. Unplug the cable. Undo two screws, remove the defective MAF, insert this Denso one, re-screw it in, replug the cable. Then you can either unplug the battery terminal to "reset" the codes or use a cheap ODB2 scanner to clear it (preferable). The Toyota OEM part goes for anywhere between $120 to $200 from the dealer depending on how much they like to rip you off. Appears to be a genuine part and matches the looks on the Denso website.
P**E
Denso is the way to go
Needed a new mass air flow sensor for the 2010 Tacoma Denso manufactures the OE sensor Fits, works, inexpensive, reliable Easy choice, easy fix Denso is the way to go 👍
K**D
Perfect fit! Worked like new.
Worked as designed.
J**I
High Quality Original Part
This worked perfect for my Toyota Corolla, selected this part number from Denso web site for my car model. Check Denso web site to make sure you order the correct part number. At first, I cleaned the exterior of the existing MAF sensor before removing it and waited one day to dry. This was to prevent any dirt going inside the hole while installing new one. When I got my order and installed the new MAF sensor, the engine started to run more smoothly, more powerful, there was a huge power difference before and after. I do NOT recommend to try to clean the old MAF sensor, that was the advice from my mechanic and I will do the same here. There is a rubber gasket at the perimeter of the sensor, even though you think you cleaned perfectly ( you can easily damage) ,old one can take air from the gasket and engine light will still be on , computer will get the air mixture wrong. Also there are inner tube wires to clean and it is not possible to reach and clean those wires, it will be a loss of your time and it may not work, long story short, buy a new one and see the difference in power. I believe this sensor should be renewed at every 50-80K miles to improve performance of your car. NOTE that immediately after the installation of new sensor, the engine check light does not turn off. It took me 30 miles of driving in two days, 4 cold starts to turn the lamp off. Mechanic said you can unplug negative then positive ends of the battery and reset the light ( be careful some cars you need to input radio codes when you unplug battery). Or you can go to your mechanic OR to an Autozone shop to reset the light, OR drive and wait for few days like i did.
K**T
Denso mass flow sensor
Bought this because I didn't want o to deal with the headache of mass flow problems, there was not a code for it but the one that was on the car was touching 20 years so i went ahead and replaced with the same OEM part and haven't had a problem since and don't intend to because its Denso.
A**E
Great replacement!
Fixed my stumbling n hesitation on my is300!
K**Y
** EDIT: DIED in <2 weeks! ** Fixed my P0171, P0174 check engine codes!
EDIT: So frustrating that this part completely died in less than 2 weeks causing me to not be able to start my car successfully. It would start and then immediately die. I was in an area where I couldn't leave my car so I ended up having to pay for a tow, some diagnostics at a mechanic to confirm the MAF sensor was bad (I had a feeling it was the MAF but wanted to be sure), and then a new MAF sensor which I again replaced myself (mechanic wanted to charge over $300 to replace the MAF, but I was definitely not paying that since I knew that even at full price the part is around $100 and it takes literally a screwdriver and 2 minutes to replace). All in all, this part was a $300 mistake. I was correct in replacing the part, which solved my issue and saved me a lot of money (>$300 for a mechanic to do it, compared to just the price of the part), but because I got a crappy part all that savings went down the drain. Live and learn. I suspect the part I received was either not genuine Denso (my OEM Denso MAF lasted almost 20 years!), or was used. Very disappointed and now wary of buying products like this from Amzn in the future since they can be dubious in origin or quality. Original Review Below: 2002 Camry V6, ~130k miles. I got the dreaded check engine light and really didn't want to spend money on such an old, beat up, car. I enjoy DIY fixing a lot of home stuff, but I am an idiot when it comes to cars. Found some easy trouble shooting tips like changing the air filter and cleaning the MAF sensor. Cleaning the MAF cleared the code for a few months but then it came back. Continued to drive it around for a couple months, thinking that it would be expensive to fix, and my car was definitely not driving very smooth. Do not do this as it's really not good for the engine! Then I finally realized that replacing the MAF sensor with a new one had a high chance of fixing my problem, would be super easy to do, and would be relatively inexpensive. Should have been obvious since cleaning the MAF fixed the issue for several months. Anyway, didn't want to cheap out on this part with a random knockoff, so went with this Denso replacement (OEM was also Denso) and got it a pretty good price on Amazon compared to other places. Changed the MAF sensor which took all of 2 minutes, cleared the code, and have been good since. Car is driving better and no check engine light! Hopefully it sticks, but I'm sure the sensor had to be changed regardless and a mechanic would have charged at least triple. Very happy with the results!
L**X
Tears of Joy
I ordered this Saturday evening and it came early afternoon Monday. I have a 2008 Toyota Corolla and I have had persistent engine issues:stuttering, unstable idling, sporadic engine shut-offs when making turns or accelerating after a solid stop (red light). I went to take my car to a mechanic and they read that it was engine code P101... mass air flow sensor trouble etc. They replaced my mass air flow sensor and the problems persisted. They persisted so much that I began to thank other things could be wrong with my car. I also replaced he throttle body of the car. So eventually I had another guy look at it because my check was engine light had still been on for more than 10 months. He checked all of the usual culprits of things associated with this error i.e intake boot leak, the whole 9 yards and he was sure it was the sensor. So then I knew I got ripped off by the previous mechanic with a crappy sensor. At that point I came to Amazon and bought this. Took 5 seconds to install (2 screws and plug it in). Now my check engine light is gone and my car is running smoother than ever. Perfect idling and great throttle.
Trustpilot
5 days ago
1 week ago