Hi Folks,
I want to replace the primary O2 sensor on my 2001 AP1 90.000miles as a safety/OCD measure. Generally speaking, I always try to go with OEM BUT.... the part is discontinued now and I'm not able to find it anywhere.

Would you mind giving me some hints on what's the "second best" Primary O2 sensor after the OEM one from Honda? I found this:

• Honda AP1 Primary O2 Sensor: 36531-PCX-014 <- Discontinued. Not available anywhere!
• Honda AP1 2004-2005 O2 Sensor: 36531-PZX-A01 <- no idea if this fits. Please help
• DENSO: #234-4124 <- so cheap and sexy, looks perfect but just want "the best". Is this the best sensor I can put on my S2000? There is a DIY for this sensor as well: https://www.s2ki.com/forums/s2000-un...t-diy-1029653/
• Bosch: #13959 <- no idea, reading here it seems the agreement is "Denso for imported, Bosch for German"

Thanks in advance for your help and experiences!

 

Definitely Denso over the others, NTK is also a good brand but I never had issues with a Denso part, and there is no benefit of a Honda branded 02 Sensor over Denso even if you could find one. Just like oem Honda coil packs are no better than the Denso version.