Oxygen O2 Sensor Set (Upstream + Downstream) – Fits 2009-2016 Hyundai Santa Fe, Sonata, Tucson & Kia Optima, Sportage 2.0L/2.4L

Need to replace your oxygen sensors? This 2-piece set includes both upstream and downstream sensors (part numbers 234-5029 & 234-4238) and fits a bunch of Hyundai and Kia models from 2009-2016. We’re talking Santa Fe, Sonata, Tucson, Forte, Optima, Sorento, Sportage – mostly with 2.0L or 2.4L engines. These sensors are built to OE specs, so they plug right in without any cutting or splicing. They respond fast to oxygen changes, which helps your engine run smoother and can even improve fuel economy. Installation’s straightforward – just swap 'em out. Double-check your exact model and year before buying, and if you’re unsure, reach out to the seller. A quick sensor replacement can make a big difference in how your car drives.