Oxygen Sensor for 1989-1991 Hyundai Sonata & More - Walker 350-32021

Walker Products 350-32021 oxygen sensor for the 1989-1991 Hyundai Sonata 4-cylinder 2.4L and other vehicles measures the oxygen content of the exhaust gas. This upstream, narrow-band sensor gives the engine computer a reading it uses to watch combustion efficiency.

• Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates in the exhaust gases
• Electrodes made with a gas-permeable platinum layer
• Measures oxygen levels so the air-fuel mixture can be fine-tuned for fuel economy
• Monitors exhaust gases to help reduce pollutants
• Made for its specific application and fitment position, with the diagnostic feedback the ECU requires

Quick facts

• Part: Walker Products 350-32021 oxygen sensor
• Fits: the 1989-1991 Hyundai Sonata 4-cylinder 2.4L and other vehicles
• Position: Upstream
• Condition: New

A failing sensor can show up as rough running, higher fuel use, more exhaust emissions or a lit malfunction indicator light. These signs alone do not prove the sensor is the problem, since a damaged wiring harness or connector can cause them too.

Fits

This is a direct-fit upstream oxygen sensor for the 1989-1991 Hyundai Sonata 4-cylinder 2.4L, the 1990-1994 Plymouth Laser 4-cylinder 1.8L and the 1990-1994 Mitsubishi Eclipse 4-cylinder 1.8L. This listing is a single sensor, and those cars need just one. Driving something else? Open the "Vehicles it fits" section and match your exact model and engine there.

Specifications