Oxygen Sensor for 1990-1991 Toyota 4Runner & More - Walker 250-24056

Walker Products 250-24056 oxygen sensor for the 1990-1991 Toyota 4Runner 4-cylinder 2.4L or V6 3.0L and other vehicles measures the oxygen in the exhaust gas to show how efficiently the engine is burning fuel. Each Walker Products oxygen sensor part number is made for its specific application and fitment position, and it gives the ECU the diagnostic feedback it expects.

• Narrow-band sensor that monitors the oxygen content of the exhaust gas and the air-fuel ratio
• Electrodes made of a gas-permeable platinum layer
• Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates
• Measures oxygen levels so the air-fuel mixture can be fine-tuned, which helps fuel economy
• Monitors exhaust gases to help reduce pollutants

Quick facts

• Part: Walker Products 250-24056 oxygen sensor
• Fits: 1990-1991 Toyota 4Runner 4-cylinder 2.4L or V6 3.0L and other vehicles
• Position: Upstream, upstream left, upstream right
• Condition: New

A damaged wiring harness or connector, or another engine fault, can be behind poor running, higher fuel consumption or a lit malfunction indicator light, so find the cause before buying a new sensor. If the oxygen sensor is the cause, this one replaces it.

Fits

The 1989-1991 Toyota Pickup 4-cylinder 2.4L or V6 3.0L and the 1988-1989 Toyota Land Cruiser 6-cylinder 4.0L take this sensor too, along with many other vehicles. Not driving one of these? Check your own car in the "Vehicles it fits" section. This listing is one sensor, and the 1990-1991 Toyota 4Runner 4-cylinder 2.4L or V6 3.0L takes one.

Specifications