Two
A 2007 Durango has four oxygen sensors.
The engine holds 4.5 quarts.
4(four)
Two
Gas engine has two, diesel has zero.
Depending on the year and engine it may have 1, 2, or 4.
any car after 1995 has two, or four oxygen sensors,as they use OBDII system
Two. One before, and one after catalytic converter.
Engine, transmission, axles, exhaust, airbag. too many to list.
2. one pre cat and one post cat
There is one, in front of the catalytic converter.
A 1997 Dodge Dakota has two oxygen sensors.