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Denso 234-4337 Oxygen Sensor

Free shipping on orders over $29.99

$45.04

$ 22 .99 $22.99

In Stock

About this item

  • Efficient Fuel Consumption
  • Easy installation
  • Constructed from high quality material
  • Manufactured with precision to meet OE standards


Denso 234-4337 Oxygen Sensor


Florencio Cabrales
Reviewed in the United States on February 25, 2025
It fit my 2007 Chevrolet Silverado Classic 4.8 4 door crew cab
Adia Wright
Reviewed in Canada on September 25, 2024
These are the real deal. If you can buy a o2 sensor for $20, maybe you shouldn't! That's what I learned the hard way.
Customer
Reviewed in the United States on September 21, 2024
Recently purchased a 2006 Sierra with roughly 174,000 mi on it Great running truck the engine strong but unfortunately she started to develop weird issues of idling and I noticed the gas mileage was decreasing slightly brought into the shop they suggested tune up with O2 sensors do the work myself because well times are tough use the part numbers they supplied that they claimed for the general motors original equipment supplier I believe it because truck runs great again and I mean it runs great! The quality of the sensor is fantastic The feminine is dead on and as long as you have a little patience they are very easy to replace.
bryan bowman
Reviewed in the United States on July 29, 2024
I replaced several of these on my GMC Truck. They worked, made the code go away.
JPar
Reviewed in the United States on July 12, 2024
Not over priced. It fit properly and works great.
mrstans
Reviewed in the United States on December 10, 2024
Sad but true, I bought one from ebay and thought it didn't work and didn't notice it was not completely connected until after I cut the wire to remove it. The one worked perfectly.
reza mesgarlou
Reviewed in Canada on October 6, 2024
Good product and does what it’s supposed to do
er
Reviewed in Saudi Arabia on December 20, 2023
الهمر اتش٢ عنده اربع حساسات. حساسين نفس هذا النوع وحساسين اخرين يركب عليهم حساس اليوكن موديل ٢٠١٠ اللي فيشه بيج وذكر وليس انثى ولكن سلكه نوع ما اقصر ولكنه يركب بالضبط. انتبه ان كل حساسات الهمر من نوع ذكر
fawaz alshamsi
Reviewed in the United Arab Emirates on January 3, 2023
Excellent works
Frank K
Reviewed in Canada on June 20, 2022
Direct replacement for my 2008 Chev Silverado V6 4.3L. Comes with anti-cease grease for threads
Raymond Kidwell
Reviewed in the United States on September 13, 2021
This came up as fitting my Suzuki Burgman 400 cc scooter. Amazon did not have the Suzuki brand oxygen sensor. With the bad sensor I was losing horse power and a trip that normally takes 1/8 of a tank of fuel would take about half a tank. I was getting insane fuel mileage with the oem (like 60 mpg). First of all the wire on here is not the same as the oem wire for suzuki. I had to shove it and force it together. Apparently it worked. The word "fits" is used rather loosely. My horsepower was restored but not all my fuel mileage. A 1/8 tank trip ow takes about 1/4 of a tank. It's an improvement on the bad sensor for sure, but this seems to be an el cheapo replacement. If you spend more money and order the oem part you are going to get better fuel mileage.
Rob
Reviewed in the United States on June 7, 2019
Just put 2 upstream on my 2006 Tahoe. I used an adjustable end wrench as there is room on my SUV, but only barely on the passenger side. Access not too bad, drivers side easy to get to the sensor, hard to get to the plug. Passenger side harder to get to the sensor but easier to get to the plug. Replaced both though the code indicated bank 1. Mine were original with 167k miles. I'll change the down stream next. Reset the engine light and so far runs great, no engine light. I think these are a good price. Came with anti seize as well. Plug fit as expected. Took me a little less than an hour.
zlh5009
Reviewed in the United States on March 25, 2014
I purchased these to "freshen up" my fuel mileage when my truck had about 136k miles on it. They were the original equipment upstream oxygen sensors for my 2006 Chevy Silverado 1500 LT. I was surprised, because I thought it would have had AC Delco O2 Sensors in it. Not the case. These were identical to the ones I pulled out of it.All in all, it was a very easy switch. I rolled under the truck right behind the front wheels, and found each sensor screwed into the exhaust pipes just above the catalytic converters. A 7/8" wrench got the old ones loose with a couple turns, and I could take them out the rest of the way by hand. I followed the wires back to the connectors, one was over the top of a body crossmember (easy to get to) and the other one was situated next to the transmission (a little trickier.) To unplug the old ones, I had to remove a plastic locking tab from the tongue of the connector before they would unsnap.Installing the new ones was easy. They each came with an ample amount of anti-seize compound to keep them from rusting in. With a little of that smeared on the threads, they screwed in easily and tightened very securely. The pigtails on these snapped into the truck's connectors perfectly, and I even replaced the locking tabs.The difference was nearly instantaneous. My fuel trims went from averaging 3.9% back to averaging 0% long term. I also got back about 3 mpg that I had been missing for a while, and a little more power. All in all, it was a great choice buying these.Also, its worth knowing that the ones I took out were also Denso brand- they had 136,000 miles on them, and they were still going. The engine hadn't thrown a code, and the sensors still worked. They were just sluggish and a little old, and I decided it was time to replace them. So, I'm very comfortable replacing them with identical ones - as far as I'm concerned, I don't mind putting these in every 150k or so, especially when they pay for themselves within 7 tanks of gas.I would highly recommend these to anyone who drives a high-mileage vehicle and has noticed that it doesn't perform quite as well or get the mileage it used to. These may or may not fix the entire problem, but they *will* prevent you from dumping too much fuel into your cat and plugging it, which is a much more difficult fix than this :)
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