HUMBL — Performance & OE Car Parts, Tools, Coilovers, Exhausts & Sensors. Enthusiast-run auto parts store shipping worldwide from the USA, every part tested on our own project cars.

top of page

Hyundai Elantra / Tucson / Sonata / Kia Forte / Optima / Soul Upstream Oxygen Se

SKU HYU-O2
Price

$44.99

The upstream oxygen sensor measures exhaust oxygen content before the catalytic converter, letting the engine computer fine-tune the air-fuel mixture in real time. A worn sensor typically causes reduced fuel economy, rough running, and a check engine light.

This sensor (OE 39210-2E101) fits Hyundai Elantra, Sonata, and Tucson 2.0L/2.4L GDI engines, with shared applications across Kia Forte, Optima, and Soul models. It uses the factory wiring connector for a straightforward, plug-and-play install.

Built to OEM voltage and response specifications, it restores precise fuel trim control, helping the engine run cleaner and more efficiently.

Quantity

New

8c3272c12fe546269c6aa08bc859a28a_edited.png
Sf33f6f8e1fe9460e95817d9a8891b083d_edited.png
image_2026-01-03_181339089-removebg-preview.png
image_2026-01-03_191319636-removebg-preview.png

Happy Humbl Customers

What they’re saying

image_2026-01-03_195200424.png

"The socket set is top-tier quality. Heavy-duty steel that handles real torque without slipping. Better than the big box store brands honestly."

 Jason M., Ohio

image_2026-01-03_195254831.png
Ordered brake pads and rotors for my truck. Everything fit perfectly right out of the box. Saved me cash and shipping was surprisingly fast."
 Isaac L., Texas
image_2026-01-03_195414958.png
"Incredible service. Needed a specific sensor fast and it arrived a day early. The site is simple to use. Finally found a reliable parts source!"
Mike T., Florida
bottom of page