Walker Products Oxygen Sensor P/N:250-24493
Walker Products 250-23051 oxygen sensor for the 1987-1990 Toyota Supra 6-cylinder 3.0L measures the oxygen content of the exhaust gas. This upstream sensor sends the engine computer the reading it needs to monitor the air-fuel ratio and combustion efficiency.
A rough-running engine, higher fuel consumption or a lit malfunction indicator light can mean the oxygen sensor is worn, though a damaged wiring harness or connector can be behind them too, so look both over for physical damage with the engine off and cool.
This oxygen sensor is a direct-fit replacement for the 1987-1990 Toyota Supra 6-cylinder 3.0L.
Fit and size
Build and materials
This listing is one oxygen sensor, and the 1987-1990 Toyota Supra 6-cylinder 3.0L takes one.
Is this the right oxygen sensor for the 1987-1990 Toyota Supra 6-cylinder 3.0L?
Yes. Walker Products 250-23051 is an upstream, direct-fit sensor for the 1987-1990 Toyota Supra 6-cylinder 3.0L, and that engine takes one.
Is this Walker Products oxygen sensor wideband or narrow band?
Walker Products 250-23051 is a narrow-band sensor with three wires and a flange mount.
What does the coating on this oxygen sensor protect against?
The coating on the electrode surfaces keeps combustion residue and particulates in the exhaust gases from contaminating or eroding them.
Is this an upstream or downstream oxygen sensor?
This one is an upstream sensor. The listing holds a single sensor, which is the quantity the car takes.
Is this oxygen sensor made for one specific application?
Yes. Each Walker part number is made for its specific application and fitment position, and the sensor gives the diagnostic feedback the ECU expects.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.