Walker Products 250-21005 oxygen sensor for the 1984-1985 Chrysler Town & Country 4-cylinder 2.6L and other vehicles is a narrow-band upstream sensor that reports exhaust oxygen to the ECU. It is made for its specific application and fitment position.
- Electrodes coated with a gas-permeable platinum layer
- Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates in the exhaust gases
- Monitors exhaust gases to help reduce pollutants
- Measures the oxygen content of the exhaust gas to monitor the air-fuel ratio and fine-tune the mixture, which helps fuel economy
Quick facts
- Part: Walker Products 250-21005 oxygen sensor
- Fits: the 1984-1985 Chrysler Town & Country 4-cylinder 2.6L and other vehicles
- Position: Upstream
- Condition: New
Rough running, higher fuel consumption, higher exhaust emissions or a lit malfunction indicator light can mean the sensor is worn, though a damaged wiring harness or connector can be behind those signs too. Inspect both for physical damage, with the engine off and cool, before you replace the sensor.
Fits
This oxygen sensor is listed for a wide range of Chrysler, Dodge, Plymouth, Mitsubishi, Subaru and Hyundai models, including the 2004-2005 Dodge H100 4-cylinder 2.4L and the 1990-1994 Subaru Loyale H4 1.8L. This listing is one upstream sensor, and the fitment calls for one per vehicle.
Specifications
Fit and size
- Position: Upstream
- Quantity per vehicle: 1
- Thread: M18 - 1.5
Build and materials
- Type: Narrow-band, direct fit
- Electrode coating: gas-permeable platinum layer
- Condition: New
Product information is for general reference and may contain errors. See our Disclaimer.
Frequently Asked Questions
Is this the right oxygen sensor for a 1984-1985 Chrysler Town & Country 4-cylinder 2.6L?
Yes. Walker Products 250-21005 is listed for that Chrysler as an upstream sensor, and it fits many other vehicles too. Enter your own car in the "Vehicles it fits" section to see whether it is covered.
Is this Walker Products oxygen sensor narrow-band or wideband?
Narrow-band. Walker Products 250-21005 is a narrow-band, direct-fit sensor made for its specific application and fitment position.
What thread size does this upstream oxygen sensor have?
The thread is M18 - 1.5.
How can I tell this oxygen sensor is wearing out?
Rough running, higher fuel consumption, more exhaust emissions or a lit malfunction indicator light can mean the sensor is failing. Newer vehicles store fault codes in the ECU, and a shop can read them.
What protects the electrodes on this oxygen sensor?
The electrodes carry a gas-permeable platinum layer. The coating guards the electrode surfaces against contamination and erosion from combustion residue and particulates in the exhaust.
