Hi Juan, You can reach our Sales Team at 1-866-529-0412 or chat with them thru the link below: https://autochat.ehosts.net/netagent/cimlogin.aspx?questid=8D9F5E85-7AEC-4DA9-9B1A-226D3808C79C&portid=83DF6668-CE4B-4EEF-8D7B-C286413F3DC3&nareferer=https%3A%2F%2Fwww.carparts.com%2Fbumper%2Freplacement%2Fkit1-062817-09-a%23

Hi Jose, I'm glad to assist you. These are for the upstream location of banks 1 and 2 (6-cylinder engine) of the selected vehicle application. If good. Grab our sale price promo and click the link below to order today. Happy shopping! https://www.carparts.com/oxygen-sensor/drivewire/set-repa960909-2?can=CPJE1043_CSQA_20221009

The upstream and fown stream in the Saturn V6 are the same however you cannot switch bank 1 and bank 2. The short leads are towards the radiator, the long leads are towards the firewall. To install the rear plug, open up a coat hanger to pickup the wire from above.

Hi Camonte, I'm glad to assist you. That means this can be installed/positioned on the upstream and downstream locations of your exhaust. You will need 2 upstream and 2 downstream sensors. Order two pairs of these sensors. Grab our sale price offer and click the link below to order today. I hope this helps. Happy shopping. https://www.carparts.com/oxygen-sensor/drivewire/set-repa960909-2?can=CPJE1043_20220310

The pre-cat O2 sensors are installed in the exhaust manifold before the first catalytic converter on each exhaust manifold (hence the term pre-cat) they are used to adjust air/fuel ratios and are accessible from under the hood of the car in the front and rear of the engine bay on the exhaust manifold. They are not the same as the sensors located after the catalytic converters which are accessible from underneath the car. You will need to make sure not to mix them up when installing them because they look the same and have the same size threads but are not interchangeable since pre-cat O2 sensors are wideband sensors that adjust air/fuel ratios while post cat o2 sensors are not wideband and no nothing except monitor catalytic converter efficiency. Hope this helps. Btw make sure to disconnect the negative terminal from the car battery before installing them since it can short out the engine computer if you don't.

Hi Gerson, I'm glad to assist you. Simply order this pair of oxygen sensors. A guaranteed fit for the 2008 Honda Pilot EX 3.5L (requires two sensors only, upstream & downstream). Grab our promo price and click the link below to buy it today. Happy shopping! https://www.carparts.com/oxygen-sensor/drivewire/set-repa960909-2?can=cpje1043_CSQA_20240310

Hi Cynthia, thank you for reaching out! If all four of your sensors are defective, then yes. Otherwise, just replace the defective ones. Kindly call our parts team at 1-866-529-0412 to help you pick out the oxygen sensors for specific locations on that vehicle. Have a good one!