Here's a handy 2-pack of downstream oxygen sensors that'll work on a bunch of Toyota and Lexus vehicles. These are brand new, unbranded but built to OEM specs. They come with black female connectors for easy plug-and-play installation - no special tools needed really. The part numbers you'll want to check are 15672, 234-4260, 2344260, 24594, 250-24360, and SG368. They fit models like the Tundra with 4.6L or 5.7L engines, RAV4, Camry, Lexus, Sienna, Avalon - basically if your check engine light's on for O2 sensor codes, these might be your fix. Comes in original retail packaging unless the manufacturer shipped differently. No UPC, but with all those part numbers, you can cross-reference to make sure they match your vehicle. Downstream sensors monitor your catalytic converter efficiency, so if yours are getting lazy or throwing codes, swapping in these fresh ones can help your engine run cleaner and maybe even improve gas mileage a bit. Two sensors mean you can do both sides at once if needed.