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.

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GMC Sierra 1500 Upstream Oxygen (O2) Sensor

SKU SIERRA-1500-O2U
Price

$69.99

The upstream oxygen sensor measures exhaust oxygen content before the catalytic converter, letting the ECU fine-tune the air-fuel ratio. A failing sensor often causes poor fuel economy, rough idle, or a check engine light.

Built to fit the 5.3L V8 engine in the GMC Sierra 1500, this sensor installs directly into the factory upstream location.

Made to OEM standards for accurate, fast-responding readings, it helps restore efficient fuel delivery and smooth running.

Reference: OE/interchange ULTRA-POWER

Quantity

New

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What they’re saying

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

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Ordered brake pads and rotors for my truck. Everything fit perfectly right out of the box. Saved me cash and shipping was surprisingly fast."
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"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!"
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