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Mercedes-Benz CLK500 Upstream Oxygen (O2) Sensor
SKU CLK500-O2U
Price
$89.99
The upstream oxygen sensor measures exhaust gas before the catalytic converter, letting the ECU fine-tune the air-fuel mixture. A weak or dead sensor hurts fuel economy and can trigger a check-engine light.
This sensor is built to fit the C209 CLK500's 5.0L V8 M113 exhaust system, matching the factory bung and connector for a direct swap.
Accurate, fast-responding construction keeps fuel trims where they should be, restoring efficient combustion and helping protect the catalytic converter from damage.
Reference: OE/interchange SK25024469
Quantity
New
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