🚗 Elevate Your Drive with Marsflex O2 Sensors!
The Marsflex O2 Oxygen Sensor (234-4018/234-4012) is designed for compatibility with a range of Chevy and GMC vehicles, ensuring optimal engine performance and fuel economy. With a robust construction, quick response time, and a 1-year warranty, this sensor is a reliable choice for enhancing your vehicle's efficiency.
| Style Name | UP/Down |
| Item Dimensions | 9.25 x 5.91 x 2.17 inches |
| Response Time | 8 seconds |
| Mounting Type | Flange Mount |
| Specific Uses For Product | Oxygen Sensor |
| Upper Temperature Rating | 930 Degrees Celsius |
| Sensing Distance | 1000 Millimeters |
| Maximum Supply Voltage | 5 Volts |
| Measurement Accuracy | Go & No-go Gauge |
| Measuring Range | =0.7- ∞ |
| Current Rating | 0.9 Amps |
| Lower Temperature Rating | 150 Degrees Celsius |
E**.
Passed smog test!
While everyone charges way too much these days for everything. Sometimes you get lucky, that's how I feel about this product. I'm so glad that I took a chance and gave it a shot. It Works 100 percent satisfied 👍💯
R**N
Half didn't fit my 02 Tahoe Z71, other half failed in two months
I should have just popped under my Tahoe to check first, but both the upstream and downstream sensors are the square plugs on my Tahoe, there are no rectangle ones. That's on me. But, at least I had two square ones from this order and I just ordered two more square ones from another vendor. Well, now the square plugs from this order died within two months of install. I will be avoiding this vendor in the future.
V**H
Still a work in progress
They seem to be good 👍
P**.
Replacing these yearly.
First set lasted just over a year. Never got a response from manufacturer regarding the warranty. Thankfully not too expensive to be replaced yearly, 4 of these cost what a brand name one from the local parts house cost.
G**G
Very good customer relations!!
Couple 02s failed an they were all about customer satisfaction. Got ahold of me an guaranteed replacement. Happy customer!
S**.
Didn't work with GMC Sierra
I installed all 4 of these in my 1999 GMC Sierra 4.3l.Once installed I was getting a check engine light for P0134 and P0154. Neither of these codes where there before hand. Also the misfire the truck had got worse. I replaced the new O2 sensors with AC Delco brand sensors. Those codes went away as well as the misfire.
M**S
If you want headaches from Oxygen sensors buy these
I ended up having to buy Bosch oxygen sensors from Oriellys auto parts .All 4 upstream an downstream were as useless as a bucket under a bull .If you catch my drift. Completely trash Yes they look nice when they come out of the box but are better being put straight in the trash can . This taught me a good lesson again to go straight to the dealership an buy OEM from Chevrolet .I didnt even care about sending them back to Amazon for my money back .Lesson well learned .
P**R
Oxygen sensors
Excellent fit for 1997 C1500 pick up. Thanks!
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