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The Following brands are available based on your search.

  • Bosch
    Bosch
  • Denso
    Denso
  • Spectra
    Spectra
  • Walker
    Walker

Best Selling Genuine Smart Oxygen Sensors

  • We Stock the following top leading brands, including Bosch, Denso, Walker, Spectra
  • Constantly Updated Inventory of Smart Replacement Oxygen Sensor Parts

We stock Oxygen Sensor parts for most Smart models, including Fortwo.

Bosch
Qty:
$50.66
Bosch Oxygen Sensor  Downstream
  • Bosch is the OE equivalent supplier
  • Universal Oxygen Sensor
  • Product Attributes:
    • Automotive Color / Finish: Steel
    • Connector Shape: None
    • Housing Material: Metal
    • Installation Hardware Included: Universal Connector Kit
    • Mounting Type: Threaded
    • Thread Diameter: 18
    • Universal Or Specific Fit: Universal
    • Wire Quantity: 4
Brand: Bosch
Additional Fitment Information:
Vehicle Aspiration Block CC CID Position
2008 - Smart Fortwo Naturally Aspirated L 1000 61 Downstream
Denso
Qty:
$56.50
Denso Oxygen Sensor  Downstream
  • 4 Wire, Direct Fit, Heated, Wire Length: 12.4
  • OE Style
  • DENSO oxygen sensors are manufactured and tested to the strictest OE standards for unparalleled peformance; Each component is precision built for exact replacement, and a first time fit; This innovative line features DENSO's exclusive aluminum oxide trap layer, designed to protect the ceramic element from silicone and lead posining for improved engine performance, greater fuel efficiency, and unparalleled longevity; DENSO gives you the right part and the right fit, the first time.
Brand: Denso
Additional Fitment Information:
Vehicle Block CC CID Position
2008 - Smart Fortwo L 1000 61 Downstream
Denso
Qty:
$56.50
Denso Oxygen Sensor  Downstream
  • 4 Wire, Direct Fit, Heated, Wire Length: 12.4
  • O.E. Quality Replacement Sensor
  • OE Style
  • DENSO oxygen sensors are manufactured and tested to the strictest OE standards for unparalleled peformance; Each component is precision built for exact replacement, and a first time fit; This innovative line features DENSO's exclusive aluminum oxide trap layer, designed to protect the ceramic element from silicone and lead posining for improved engine performance, greater fuel efficiency, and unparalleled longevity; DENSO gives you the right part and the right fit, the first time.
Brand: Denso
Additional Fitment Information:
Vehicle Block CC CID Position
2008 - Smart Fortwo L 1000 61 Downstream
Walker
Qty:
$48.96
Walker Oxygen Sensor  Downstream
  • Walker
Brand: Walker
Additional Fitment Information:
Vehicle Aspiration Block CC CID Engine Designation Fuel Delivery Type Fuel Type Position
2013 - Smart Fortwo Naturally Aspirated L 1000 61 132.910 FI GAS Downstream
Walker
Qty:
$82.76
Walker Oxygen Sensor  Upstream
  • Walker
Brand: Walker
Additional Fitment Information:
Vehicle Aspiration Block CC CID Engine Designation Fuel Delivery Type Fuel Type Position
2013 - Smart Fortwo Naturally Aspirated L 1000 61 132.910 FI GAS Upstream
Spectra
2008 Smart Fortwo Oxygen Sensor - Downstream Spectra

P311-43DA858    New

Qty:
$56.52
Spectra Oxygen Sensor  Downstream
  • Oxygen Sensor
  • Innovative engineering, manufacturing technology and quality control ensure that Spectra Premium oxygen sensors meet or exceed the performance of the original equipment they replace.
Brand: Spectra
Additional Fitment Information:
Vehicle Aspiration Position
2008 - Smart Fortwo Naturally Aspirated Downstream
Bosch
Qty:
$65.19
Bosch Oxygen Sensor  Downstream
  • Bosch is the OE equivalent supplier
  • OE Style Oxygen Sensor
  • Product Attributes:
    • : 13
    • Automotive Color / Finish: Steel
    • Connector Shape: Female Spade
    • Housing Material: Metal
    • Mounting Type: Threaded
    • Sensor Type: Heated
    • Thread Diameter: 18
    • Universal Or Specific Fit: Specific
    • Wire Quantity: 4
Brand: Bosch
Additional Fitment Information:
Vehicle Aspiration Block CC CID Position
2008 - Smart Fortwo Naturally Aspirated L 1000 61 Downstream

Latest Smart Repair and Oxygen Sensor Installation Advice

CarJunky AutoAdvice

2000 chevy blazer failed nox

Showing 2 out of 7 Posts | Show 5 Hidden Posts
Question From cash9105 on 2000 chevy blazer failed nox

2000 chevy blazer ls Hello, I have a problem with my 2000 ls blazer. It sat non running for quite some time in Texas due to needing a transmission replacement. That was over a year ago. It was back up and running late last year and I moved to Colorado in April. I have been driving it since. I took it for it's emission test and it failed. Result was high NOX in 3.007. The check engine light was on during the first test but with the second it was out because we found another sensor unplugged, I think it was called the vapor pressure sensor, by the fuel pump. I retested and the same thing, a high NOX again. My next thought is to replace the oxygen sensors. Am I on the right track?? There is no check engine light therefore I do not know which one it may be. I can only find three sensors and not four. When I go to try and buy the sensors I am confused because some are four wire or 3 wire, heated or not????? Can someone help me as I am a woman, who is looking for a job and cannot get one until I have this vehicle up and running. Ha ha, whine whine. lol I appreciate your help in advance! Thanks so much!

Response From Sidom

Wow.......As Nick already mentioned....Nox comes from combustion cambers overheating....
This something most people aren't gonna be able chase down without the right equipment & training....
Throwing parts at it is probably going to be an expensive mistake that won't fix the problem..
The best and cheapest options on this one would be to bit the bullet & let the smog shop fix this one for you...

Response From nickwarner

Not all codes will trip the light on. I'd get it scanned and post the exact code numbers here. Don't throw out over $400 on oxygen sensors that haven't been tested bad and may not fix the problem. High NOx comes from elevated combustion chamber temps, such as a lean burn condition. There are a lot of things that can cause your issue, and throwing perfectly good money at it on a guess will only make you even more broke. Get those codes and lets see if we can make that money count.

Response From cash9105

There are no codes now. Im not sure what to do next. Thanks so much for your help!

Response From nickwarner

Are you saying that a scanner will not pull any codes, even history codes? Were the codes cleared recently? If you clear the codes, you not only erase the information that might help find this fault but you reset the readiness monitors for the ODB system. Even if it was fixed you will fail emissions if the readiness monitors aren't complete. You need to go on some drive cycles to either duplicate or rule out the fault.

Response From cash9105 Top Rated Answer

I am not sure about the history codes. There are no trouble codes. Are you saying I need to have a code scanner while I am driving the vehicle? Is there a cheap one I can get? I apologize for not being too smart on this subject.

Response From nickwarner

Your codes can be read sitting still with the key in the run position. Many parts stores will do it for you for free. If you don't have an active code it could be in history, or could be gone because that particular code takes a certain number of drive cycles to fail in order to set the code. Also not all codes will turn on the light. I'd be interested in the mode 6 data, which you can only access with a high end scanner that you don't have. The one I have was $4000. Not cheap in any sense of the word.