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4.9

26 product ratings

24 users rated this 5 out of 5 stars
1 users rated this 4 out of 5 stars
1 users rated this 3 out of 5 stars
0 users rated this 2 out of 5 stars
0 users rated this 1 out of 5 stars

Would recommend

Good value

Good quality

Most relevant reviews

See all 23 reviews

by vettegazette
Sep 16, 2019
Denso when you are buying just one!!
I am in love with my Denso oxygen sensor. It made the little light go out. No cheap off brand oxygen sensor for me I goes for the original equipment Denso
Verified purchase: YesCondition: New
by ultra_audio
Feb 15, 2020
Good quality, Works Great, perfect replacement part
Installed, works great. Very good quality. Have been using for over 1000miles so far so good.
Verified purchase: YesCondition: New
by bobruiz2006
Nov 21, 2017
oem quality and fit
This is the second Denso o2 sensor I've bought in 500,000 miles for my Honda civic.The last one lasted about 200,000 miles.At the cost of under 50 dollars it's a great buy.The last one came right out no problems ,i used the copper anti-seize on the threads.I also live in the bay area Calif. so there's no snow or ice or salt to rust it in place.If you live where it rusts in place i recommend you use rust penetrating spray every day for a week before trying to remove it,i think the hot and cold cycles with allow the spray to work its way down the threads after awhile.i also did the map sensor with an aftermarket Denso ,and disconnected the battery to reset the ecu,so that it could relearn the map with new signals.my mileage was down by 5 mpg.the o2 was reacting slowly and going to rich,that;s why i changed them.the car runs great ,it still run good i just wanted the mileage to go back up.it did.On a 1994 Honda civic if you take the exhaust shied off ,you can get a 7/8 wrench on the hex from under the car and you may not need the special socket to get it out,especially if you spayed it with pennant for the last week.don't for get to put the shied back on,and use anti-seize on those screws to.Even on the west coast those shield screws do get rusty.as do the muffler and cat bolts.good luck.
Verified purchase: YesCondition: New
by bigred1942
Jan 27, 2021
Fantastic product and price.
Excellent OEM replacement product at a fantastic price. Fit like a charm and check engine light disappeared after installation by my mechanic. Passed exhaust emission inspection without issues. Would definitely recommend to others and will buy again. When you save a ton of money it feels like heaven on earth. Thankful that quality OEM products are available that replace exorbitant dealer products and prices.
Verified purchase: YesCondition: New
by tpul7566
Apr 05, 2022
High Quality/Low Price.
Highest Quality from Asian Manufacturer at Competitive Price.
Verified purchase: YesCondition: New
by mr_bird_man
Jul 29, 2020
Works, replaced a Chinese knock off that lasted one week.
My 99 Civic was throwing o2 sensor codes. Put in a cheap Chinese sensor, solved the problem for one week, then it came back. Went with the Denso, has been a month now, all is well.
Verified purchase: YesCondition: New
by 509leoguerra85
Nov 05, 2019
Check engine light off.
At the autopart store they sold it for $60 plus dollars I got it here way cheaper and my check engine light is gone. Can’t complain!
Verified purchase: YesCondition: New
by cb4597482cb_5
Aug 30, 2022
Air/fuel sensor
High product for replacement parts.
Verified purchase: YesCondition: New
by kaufmanj0
Jun 18, 2019
OEM quality and great!
Awesome OEM quality part, glad I paid a little more for the name brand.
Verified purchase: YesCondition: Pre-owned
by j_version
May 10, 2017
Just like oem quality
Been getting bad gas mileage. Switched an old Bosch o2 sensor for this oem brand o2 and it fixed the problem.
Verified purchase: YesCondition: New

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Oxygen Sensor-Auto CVT Trans DENSO 234-4099

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Ratings and Reviews

Most relevant reviews

Denso when you are buying just one!!

Good quality, Works Great, perfect replacement part

oem quality and fit

Fantastic product and price.

High Quality/Low Price.

Works, replaced a Chinese knock off that lasted one week.

Check engine light off.

Air/fuel sensor

OEM quality and great!

Just like oem quality

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