All,

Here are the 4 OEM part numbers our o2 sensors. Can anyone add the Denso part as a cross reference for people.

Firewall Side
Bank 1, Sensor 1 (top, before the cat) - OEM 36531-RCA-A02
Bank 1, Sensor 2 (bottom, after the cat) - OEM 36542-RDA-A01

Radiator Side
Bank 2, Sensor 1 (top) - OEM 36531-RDM-A01
Bank 2, Sensor 2 (bottom) - OEM 36532-RYE-A01

 

 

Updated with Denso part numebrs

Firewall Side
Bank 1, Sensor 1 (top/upstream, before the cat) - OEM 36531-RCA-A02 or Denso 234-5010
Bank 1, Sensor 2 (bottom/downstream, after the cat) - OEM 36542-RDA-A01 or Denso 234-4355

Radiator Side
Bank 2, Sensor 1 (top/upstream) - OEM 36531-RDM-A01 or Denso 234-5010
Bank 2, Sensor 2 (bottom/downstream) - OEM 36532-RYE-A01 or Denso 234-4368

 

 

So what will be the recomended brand for my TL ? Denso?

 

Denso is OEM replacement so yes.

I think some may argue NTK is also an OE replacement but either of those will be > Bosch.

 

My '05 for sure had a NTK upper sensor in it. I replaced it with a Denso. Unlikely you will go wrong with either.

 

I found a Denso matching the OEM parts number provided above. Its about $50 shipping included so ill give it a try. Hopefully it goes out if not i might have a bad cat or a leak somewhere.

 

upstream or downstream? If upstream can you post the link! I'll buy one too!

 

Negative mine is downstream. If you tell me which one it is exactly I can send you the link. Theres: Bank 1 Sensor 1 Bank 1 sensor 2 Bank 2 sensor 1 Or Bank 2 sensor 2 (I need the last one)

 

I found the upstream on Amazon for about $90 and the downstream for $35. Best prices I could find for the real deal shipped.

 

Are the part numbers same for manual and automatic, I saw on rockauto some note like manual transsmision automatic transsmision

 

www.oemacuraparts.com Put in your Model year vehicle, and manual transmission and compare the part numbers.

 

Thank you so much.

 

Will this be the same Denso Ref# for my 2012 TL?