Hi Heather, This is an upstream oxygen sensor. To check the fitment please use our Vehicle Selector — which can be found towards the top of the homepage as well as all categories, search results, and product pages — can help verify if a part will fit your specific application. To enter your application, simply select your vehicle’s year, make, model, sub-model, and engine type and click “Go.” Once your application is selected, you’ll see a “Guaranteed to Fit” badge if the part will fit, and we recommend that you also double-check Your Vehicle Fit Details as well as the Vehicle Fitment Information table on the product page.

Hi Richard, I'm glad to be of assistance to you. The Toyota P0136 code indicates an "Oxygen Sensor Circuit Malfunction (Bank 1, Sensor 2)." Sensor 2 is located downstream or after the catalytic converter. We do have a direct-fit O2 sensor for this trouble code that is vehicle compatible. While supplies last, click on the link below to view and place an order for 62% less than the regular price today. I hope this is useful. Enjoy your CarParts.com online shopping experience! https://www.carparts.com/details/Toyota/4Runner/DriveWire/Oxygen_Sensor/2004/REPT960906.html?can=CPGG4850_CSQA_20221216

Well I hope you get the 02 scissors cause they worked really good on my 2009 Toyota Camry And I would like to thank Car parts Affordable parts

Worked And took my code away within 3days

Hi Max, I'm glad to assist you. For us to check carefully and be accurate on the part you need, please provide the complete details of your vehicle (year, make, model, submodel, and engine size). Still, it is best to call our parts specialist (for real-time, live, and immediate assistance) on our toll-free number, 1-866-529-0412 (Monday through Sunday).

These are the ones I wanna replace the upper and lower air and fuel and oxygen sensor. I wanna make sure they’ll fit in the price.

Hi Richard, I'm glad to assist you. For us to carefully check and be accurate on the part you need, please provide the complete information of your vehicle (year, make, model, submodel, and engine size). The VIN would be much helpful. I hope this helps.

Sorry Richard I can't help because I don't know what kind of of the car is you didn't say anything about the car you are working on but I'll try to give you some advice if you're ecm computer is reading po 136 bank 1 sensor 2 then you probably have the right one but you need to finish your diagnostics to makei sure that you don't have any exhaust leaks

Hi Jeff, As per checking, yes, this is for the downstream of the bank 2 location(driver side location).

I used it for bank 1 sensor 1