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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Mercedes-Benz CLK320 Upstream Oxygen (O2) Sensor

SKU CLK320-O2U
Price

$89.99

The upstream oxygen sensor measures exhaust gas composition before the catalytic converter, helping the engine control unit fine-tune the air-fuel mixture for efficiency and emissions compliance.

This sensor is engineered to fit the C209 CLK320's 3.2L V6 M112 engine, matching the factory connector and thread for direct installation.

Accurate and durable, it restores proper fuel trim and helps resolve related check engine codes.

Reference: OE/interchange SK25024469

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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"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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