Marsflex O2 Oxygen Sensor 234-4668 Upstream Compatible with Chevy Silverado Suburban Avalanche Tahoe Malibu Impala, GMC Yukon/XL Sierra Cadillac Pontiac Buick, Replacement 15284 250-24470, 2PCS
Details
- BrandMarsflex
- Item dimensions L x W x H6.1 x 4.33 x
- Material234-4668 2PCS
- Item Weight0.29 Kilograms
- Current Rating0.95 Amps
Description
🔥 Upgrade your ride’s breathability—because your engine deserves the best! ⚡
- DURABILITY THAT LASTS - Built to withstand extreme temps up to 930°C for long-lasting performance.
- EXTENDED CATALYTIC LIFE - Protect your emissions system and save on costly repairs with reliable sensor data.
- PLUG PLAY INSTALLATION - OE-spec design ensures a seamless fit—no mechanic needed, no downtime wasted.
- CONFIDENCE BACKED BY WARRANTY - 1-year coverage means you’re covered—quality tested and guaranteed.
- PRECISION ENGINE OPTIMIZATION - Boost your Chevy or GMC’s fuel efficiency and power with exact O2 readings.
The Marsflex O2 Oxygen Sensor 234-4668 is a high-precision upstream sensor compatible with a wide range of Chevy, GMC, Cadillac, and other GM vehicles. Engineered to meet or exceed OE specifications, it delivers fast 22-second response times and withstands extreme temperatures up to 930°C. This durable sensor improves engine performance, fuel economy, and catalytic converter longevity, all backed by a 1-year warranty for peace of mind.
Specifications
| Brand | Marsflex |
| Item dimensions L x W x H | 6.1 x 4.33 x 2.13 inches |
| Material | 234-4668 2PCS |
| Item Weight | 0.29 Kilograms |
| Current Rating | 0.95 Amps |
| Lower Temperature Rating | 150 Degrees Celsius |
| Maximum Supply Voltage | 12 Volts |
| Measurement Accuracy | Go & No-go Gauge |
| Measuring Range | λ=0.7- ∞ |
| Mounting Type | Flange Mount |
| Output Type | electrical signal |
| Response Time | 22 seconds |
| Sensing Distance | 1000 Millimeters |
| Specific Uses For Product | Oxygen Sensor |
| Upper Temperature Rating | 930 Degrees Celsius |
| Manufacturer | Marsmotor |
| Style | Upstream |
| Item Weight | 10.2 ounces |
| Product Dimensions | 6.1 x 4.33 x 2.13 inches |
| Country of Origin | China |
| Item model number | APEL14001A |
| Manufacturer Part Number | APEL14001A |
| Wattage | 12 watts |
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Reviews
G**N
Great deal
Perfect fit. Great deal.
J**.
Perfect Fit
Perfect fit for my 2003 Chevy Avalanche and my 2005 Chevy Tahoe 5.3 L V8 upstream and Downstream sensors.Easy to install. Engine running great now with no misfiring. Great Price!! For the pair cost 75% less than auto parts store . I bought two of the two pack and replaced all 4 on my vehicle.
D**N
Failed within a week
After I installed these, my engine light went off and all was good for about 20 miles. Then, both sensors failed within a week and sent engine codes. I had to replace them with a different brand, which worked fine, and the engine light went off and stayed off...so far. I will update when I get more miles on the truck. I'm outside the return window, so I have to eat the cost of faulty sensors. Bummer!
E**H
works well
installed I now get 400 miles to 25 gallons again. on my old 02 that were shot and 20 yrs old I was getting half that milage. 2004 5.3 suburban.
D**O
Great
Loved the O2 sensors worked great and a little more then half the price at auto zone
C**E
I haven't run them yet
They fit and seem good quality
D**E
They're ok
They don't hold up compared to OEM but do the job
B**N
Not Great. Not terrible.
I bought a Bosch sensor and because this vehicle had 300k miles changing the sensor was shall we say "an ordeal”. After finally getting it all back together.. the other side failed. Irritated but not surprised I ordered these because i could get them the next day which was a Sunday. They arrived quickely and because while i had the exhaust out originally and broke the other 3 sensors free to antisieze them... It took longer to drive my 2005 Suburban on the ramp than swap out the sensor. Fired it up and cleared the code. Looking at the graph while running you could tell the difference. The Bosch was a since smooth sine wave. This one was more like clumsy stairs. But it worked. For 6 months. Eh... Its annoying but hey I have a spare since 2 came in this pack. Swapped it quickly and it worked... For 2 months. I bought another Bosch and its running well. The original bosch is still running like a champ.So in conclusion... If you just need it to work long enough to get a better one its fine. But dont rely on it to get to to work a month or two later.
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