Oxygen sensors
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Junior Member
Joined: Jul 2018
Posts: 22
Oxygen sensors
Yes I have found that out. I can get 1 of them that covers 3 of the oem pats numbers but one of them is different. It’s the oem 3921037523. Do you know why this one is different? It’s the downstream right side. Thanks so much
Senior Member
Joined: Sep 2013
Posts: 2,895
For what it is worth, you are better off to stick with OEM manufacturers for O2 sensors.
Many aftermarket providers attempt to cover a wide rang of vehicles with one part , and they work, most if the time, but the vehicle manufacturer has done stringent testing for the best results on their vehicle and that is why they have different part nos. even for the sensors that appear the same. Had to learn this the hard way.
Many aftermarket providers attempt to cover a wide rang of vehicles with one part , and they work, most if the time, but the vehicle manufacturer has done stringent testing for the best results on their vehicle and that is why they have different part nos. even for the sensors that appear the same. Had to learn this the hard way.
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