Looking for the best price on oxygen sensors for a 99 XJ8 in the Los Angeles area? Pep boys just quoted me $250 or so for upper one & $199 for the lower one!
Thank you
Dave

 

I got a good deal on Amazon. About $55 each upper and lower.
Upper were Bosch (Denso relabeled?) with connector attached and lower, universal Bosch.

 

I bought mine from Amazon - The one listed as Bosch upper at $63.00. The drivers side upper is the hardest to get to.

Personally -- I would not use the universal. The direct fit are not much more and eliminate the wire/ connector issues.

 

OK guys- Be very careful. The AJ27 engine uses wide band lambdas on the pre-cat position.

 

Yes -- be careful to get the correct part. Jaguar changed the O2's on the V8's -- so some places list the sensors together as being interchangeable.

 

Bosch 15627 upstream wide-band A/F sensor, exact fit -- $89.99 at advanceautoparts.com. Bosch 15626 downstream exact fit -- $95.99. Be sure to look at the top of the advanceautoparts.com webpage... often there is a discount code that will get you 10-20% off your order. Free shipping too (No affiliation).

This certainly appears to be the correct part, no? Not exactly cheap, but wayyyyyy better than the $565 each that jag wants for the jag-labeled parts.

Here's my question: Is it worth spending $350 plus labor to replace the o2 sensors? My 1999 XJR with original sensors has 126,000 miles, runs fine, and has no codes. On a 440 mile trip yesterday it showed 19.3 mpg. Average speed from the computer showed 58 mph but it was 430 miles of around 70 mph cruising and 10 miles of in-town driving. Will changing the sensors improve my mileage? By how much? 10%? More? It seems like I used to get in the low 20's back when it was in the 60,000 mile range, but maybe I'm dreaming.

(With the current discount code I can pick up all four of these sensors for $338.30 including sales tax)

 

Some people report better mileage when they change them -- The early ones had an estimated service life of 60k -- that went to 100k -- now it is never mentioned.

Most of the failures (CEL)we have had in our fleet cars --with many miles on them -- has actually been the heater in the sensor that brings it up to temperature when you first start the car. When you have this type of failure the sensor part is still functioning and will operate correctly after the exhaust warms. We have never noticed any MPG gain after the sensor replacement.

Now when the sensor part fails and you get a code -- that is a different situation -- but we rarely have it happen.

 

Thank you gentleman. Its members like you that make this site an invaluable resource!

 

Hey, you can also check in vendors for the prices .
NALLEY, JPAM

 

how can i get the part number of Bosch 15626 OE connector,does it SWS connecotr 6189-0694?