Does it have the ports for the o2 sensor? Will it fit a 2003 nissan altima base 2.5L?
819241
This is a universal, yes it has the O2 sensor hole, and yes it can fit the 03 nissan altima.
1454969
I have 2003. It has two numbers for each top sensor. But the bottom two have same number. If you put the number in ebay.com it will tell you waht it fits.
1797130
I believe so. When I went to the auto store they told me 2002-2006 v6 altima are the same motor mounts but none of the stores had they motor mount with the sensor. This is a really good deal. A perfect fit. Hope this info helps for you. I know how doubtful you are in buying this but I took a risk and it worked.
1168737
No the upstream (first) O2 Sensor should fit in this header. The downstream (second) sensor is already installed before your other catalytic converter. In order to prevent a check engine light I suggest moving the downstream sensor behind the second catalytic converter if you're buying this header.
1920841
You have to check the specs from your o2 sensor manufacturer. I bought Bosch brand and it gave me the size specs for this particular socket and it worked for me.
264980
There should be two o2 sensors. One before the cat and one after. For my car (03 Focus) the 15717 went before the catalytic and the 15719 went after.
287926
This is an upstream sensor. It has a short cable and special plug that fits Nissan upstream connectors. The cable is also thick because of the high temperature of the manifold.
1183092
If I recall right, my highlander used these for bank 2 sensor 1 and bank 2 sensor 2. I'd go on an auto parts store website and double check that the part numbers are same for your car though.
721265
Yes it does. One in the header, one in the down pipe, and one in the test pipe. Depending on what vehicle you drive is where you put the o2 sensor. Definitely in the header and on my 2000 honda civic it goes in the test pipe not the down pipe.
1097394
is the holes to install o2 sensor on newer model whith close loop injection systeme.
1794661
It worked on my 2004 Honda Accord 2.4L with no problems at all. Another person left a previous comment (dated Sept 23, 2010...his comment is titled SIMPLE...its the 3rd comment down hopefully on the link on AMazon I attached) that this sensor fit their 2005 Accord....so I think you should be fine. http://www.amazon.com/Denso-234-4797-Oxygen-Sensor/product-reviews/B00122EEK2
771780
No it is just the converter, you cut your old one out and weld or clamp this one in. You dont even touch the o2 sensors
1812057
I am mechanic and i dont see that is a air fuel sensor, if your car use air fuel ratio, it is not posible to chang for a second sensor, because the second is a oxigen sensor and work very different, you can not change.
776087
It does not......I drilled a hole in the pipe between the cat and muffler I and welded the bung on and that is where my O2 sensor is now.....
132202
Yes, it has four wires from the sensor to the connector plug. Two white, one grey, and one black.Make sure you secure the loose wire from the rear sensor well away from the drive shaft. It will eat it (learned the hard way)!
1247511
I'm sorry. I purchased it for someone else so don't have access to it to be 100% sure. If I recall correctly, it was for a catalytic converter with only a downstream sensor. The 2000 Acura Integra GS it was purchased for only had one oem o2 sensor plug for the cat. I believe the part number was 4011. Hope this helps.
2244084
No. The oxygen sensor ports are not in this catalytic converter. You either need to use the factory ports or weld on new ones.