Originally Posted By: EricF
I was told (by the Denso rep) that NTK doesn't make 100% of their o2 sensors, that some are actually buyouts. I don't know if that's true, but I do know that NTK doesn't seem to have the selection vs. the Denso.
That's okay, neither does Denso. I've installed more than one Denso sensor that was actually a Bosch. (Yes, It had the Bosch logo on it)
Originally Posted By: Viggen
Jason:
The only reason why I would choose Bosch over the other makers is because your engine was engineered and tested with the Bosch O2 by Ford . If you're looking for the original driveability I'd go with the Bosch OE unit. I doubt there is much difference BUT you never know about the other units and their slight differences.
As a general rule when replacing things like this it is always better to go with the OE manufacturer if you are looking for the same performance as when the car was new. Same goes for ignition parts as well. Stick with the OE brand that came with the car.
Just because Bosch was the OE supplier, doesn't mean the aftermarket parts will be the same.
Originally Posted By: 229
OEM and put antiseeze on threads (do not get on sensor) and dielectric grease on the electrical connector. Good fortune.
O2 sensors either come with the threads pre-coated (Bosch) or have a packet of specialty anti-seize to apply (Denso). Also, FWIW I was told during a NAPA/Federal Mogul Class misfire diagnostics to NOT use dielectric grease on an O2 sensor connector... I just wish I could remember the logic.
In general, I prefer Denso, as we've had no comebacks with them vs. a few with the Bosch sensors. Also, I tend to read of more problems with Bosch than with other brands. In the end, I'm sure that Bosch is a good sensor as there's probably millions of them out there from the aftermarket...