turn_on68
Dedicated LVC Member
are there different part number's for the O2 sensors? Or are they all the same for a 98 Mark Viii? Oh and is bank 1 the drivers side?
are there different part number's for the O2 sensors?
- Thread starter turn_on68
- Start date
Roadboss
Dedicated LVC Member
Bank 1 is passenger side. There are upstream and downstream sensors. They probably carry different part numbers.
Roadboss
Dedicated LVC Member
Bank 1 is passenger side. There are upstream and downstream sensors. The part numbers are:
from Rock Auto: Motorcraft
DY 761 (upstream)
Dy 1086 (downstream)
from Rock Auto: Motorcraft
DY 761 (upstream)
Dy 1086 (downstream)
turn_on68
Dedicated LVC Member
Thanks so much.
Been trying to find these O2 sensors for my 95 mark which only has upstream sensors..everyone i talk to seems to be giving me different motorcraft part #s. The ford parts guy told me over the phone that DY 761 was the wrong part # and that the correct # was DY 721, then someone else said DY 649 or DY 661. Which is the right part # i need for a 95?? Are they different part #s on each side? Whats the difference between all these?? The connector, the threads, length of wire?
turn_on68
Dedicated LVC Member
I found Busch on eBay for under $30 delivered. All seem to use the same O2 sensor.
opalescent 96
Active LVC Member
the motorcraft ones are really the ideal ones to use. The wire harness is the correct length as original. The bosch ones are generic. They're also bigger and have a longg wire harness that needs to be zip tied out of the way.
Roadboss
Dedicated LVC Member
The Bosch also light off at a different temp than Motorcraft. Many have had problems with the cheap replacement in our Modular motors
turn_on68
Dedicated LVC Member
I've had bad luck with Bosch oxygen sensors in two other vehicles. Because the Mark VIII's sensor is in the most pain in the ass place I have ever personally witnessed I would pay the extra $18 and get motorcraft the first time.