Oxygen Sensor for 1990-1993 Mercedes-Benz 300SL & More - Walker 350-33043

Walker Products 350-33043 oxygen sensor for the 1990-1993 Mercedes-Benz 300SL 6-cylinder 3.0L and other vehicles measures the oxygen in the exhaust gas. That reading shows how efficiently the engine is burning fuel and gives the ECU the diagnostic feedback it needs.

• Measures exhaust oxygen to help fine-tune the air-fuel mixture and support fuel economy
• Monitors exhaust gases to help reduce pollutants
• Electrodes with a gas-permeable platinum layer
• Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates
• Narrow-band sensor with three wires, made for its specific application and fitment position

Quick facts

• Part: Walker Products 350-33043 oxygen sensor
• Fits: 1990-1993 Mercedes-Benz 300SL 6-cylinder 3.0L and other vehicles
• Position: Upstream
• Condition: New

A failing sensor can show up as rough running, higher fuel consumption or a lit malfunction indicator light, though a damaged wiring harness or connector can be behind the same signs, so look both over for physical damage with the engine off and cool. Newer vehicles store fault codes in the ECU, and some of them point to the sensor.

Fits

This direct-fit upstream sensor fits the 1990-1993 Mercedes-Benz 300SL 6-cylinder 3.0L and the 1990-1992 Mercedes-Benz 500SL V8 5.0L, and both take one sensor in this position. This listing is a single sensor.

Specifications

Product information is for general reference and may contain errors. See our Disclaimer.