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 Downstream Oxygen (O2) Sensor

SKU SIERRA-1500-O2D
Price

$69.99

The downstream oxygen sensor monitors catalytic converter efficiency after exhaust gases pass through it. A failing sensor commonly triggers a catalyst efficiency check engine light.

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

Made to OEM specifications, it restores accurate post-catalyst readings and helps clear related emissions codes.

Reference: OE/interchange WALKER

Quantity

New

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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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