Ozie

Non OEM pre-cat sensors are priced all over the shop! Have been suggested to use Bosch 15733 sensors which on Amazon am told do not fit A8 3.7 AEW engine even though many of forum have used? What experience have members had with sensors at or less than $50 recently? Thanks

jfrahm

Do a search, people have used universal sensors and others. I have used Chevy Trailblazer sensors and Mazda Millenia I think, I posted quite a bit about it. Bosch, planar type, similar strain relief but the connector has to be respliced, no big deal.

I got them from Amazon.com for a good price.

Windlass34

You cannot use any "universal Bosch" sensor, 15733 is the only one that works. Mazda Millenia uses the same one. Other sensors will log errors and turn your CEL on.

Bosch page says this:
13823 Oxygen Sensor - OE Type - Exact Fit - Downstream Sensor Two required; 4 Wire; Heated; Check / Replace Interval: 100,000 Miles V8 3.7 AEW GAS
13842 Oxygen Sensor - OE Type - Exact Fit - Upstream Sensor Two required; 4 Wire; Heated; Check / Replace Interval: 100,000 Miles V8 3.7 AEW GAS
15738 Oxygen Sensor - OE SmartLink - Universal Fit - Downstream Sensor Two required; 4 Wire; Heated; Check / Replace Interval: 100,000 Miles V8 3.7 AEW GAS
15738 Oxygen Sensor - OE SmartLink - Universal Fit - Upstream Sensor Two required; 4 Wire; Heated; Check / Replace Interval: 100,000 Miles V8 3.7 AEW GAS

Windlass34

15738 sells for about $40

Ozie

Thanks for your reply. However you say only Bosch 15733 works yet your quotes are for 15738? Did you mean to say that only the 15738 works? Appreciate your reply and thanks for contributing.

Windlass34

15733 worked on my 2001 4.2V8. In your case I'd go with what the quote says.