Walker Products Oxygen Sensor - 250-21056

Walker Products Oxygen Sensor - 250-21056

SKU: WPR-250-21056

Walker Products

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If provided, we'll verify fitment before your order ships and contact you if the selected part is incompatible. Enter your VIN, then add the product to your cart.

Product details

Part Name Oxygen Sensor
Position Upstream
Brand Walker Products
Part Number 250-21056
UPC 00724620016400

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Fitment is guaranteed:

If your vehicle is listed on the fitment table below, the product will fit your car - we guarantee it. All you need to do is to ensure that the vehicle's Year, Make, Model, Trim, and any other notes specified inside the fitment table are respected.

Included warranty:

For warranty coverage information, please see our Warranty Policy.

Warranty starts from the date of delivery.
Proof of purchase required for all claims.
Covers manufacturing defects only.
Does not cover normal wear & tear.
Does not cover cosmetic damage or rust damage.

To initiate a claim, simply send an email to support@partspioneer.ca. For more information, read our Warranty Policy.

Choose Walker Products because:

Walker Products Engine Management and Oxygen/Air-Fuel sensors have been engineered and developed to be an Original Equipment Manufacturers replacement for many vehicles worldwide. Every part number is manufactured for the specific application, fitment position on the vehicle, and will provide the relevant diagnostic system feedback as required by the ECU. Newer vehicles will store fault codes in the ECU, some will relate to the affected sensor and its associated systems. A failed sensor might make itself known by causing the engine to run poorly, increase fuel consumption, exhaust emissions, or illuminating a (MIL) malfunction indicator light. The sensor, wiring harness, and connector should also be checked for physical damage. This will most likely also cause their operational life to be shortened. We are an Automotive ISO9001/TS 16949 certified company, with un-paralleled customer service, marketing, and shipping. Our electronic and paper catalogs are designed for today’s fast paced marketplace, along with our eye catching packaging. Since 1946, Walker Products has been the number one choice for the engine management sensors and fuel system components needed for your vehicle. © 2024 Walker Products Inc. All rights reserved.

Characteristics include:

Measures oxygen levels to fine-tune air-fuel mixture, improving fuel economy and saving costs.
Determines the oxygen content of the exhaust gas, monitoring the air fuel ratio for combustion efficiency.
Coated in with electrodes made of a gas-permeable platinum layer.
Coating prevents contamination and erosion of the electrode surfaces by combustion residue and particulates in the exhaust gases.
Monitors exhaust gases and reduces pollutants for a cleaner environment.

Customer Video Reviews

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Fitment Table

This product is compatible with these vehicles:

Year	Make	Model	Notes	Position
1992	Toyota	MR2	2.2L Inline engine 4 cylinders 3.43" bore 3.58" stroke Engine code 5S-FE Engine VIN code S Naturally Aspirated GAS To 1/92 B1S1	Upstream
1992	Toyota	Supra	3.0L Inline engine 6 cylinders 3.26" bore 3.58" stroke Engine code 7M-GE Engine VIN code M Naturally Aspirated GAS Non Calif-ESV	Upstream
1991	Toyota	MR2	2.2L Inline engine 4 cylinders 3.43" bore 3.58" stroke Engine code 5S-FE Engine VIN code S Naturally Aspirated GAS B1S1	Upstream
1991	Toyota	Supra	3.0L Inline engine 6 cylinders 3.26" bore 3.58" stroke Engine code 7M-GE Engine VIN code M Naturally Aspirated GAS Non Calif-ESV	Upstream
1990	Toyota	Supra	3.0L Inline engine 6 cylinders 3.26" bore 3.58" stroke Engine code 7M-GE Engine VIN code M Naturally Aspirated GAS Non Calif-ESV	Upstream
1989	Toyota	Corolla	1.6L Inline engine 4 cylinders 3.18" bore 3.03" stroke Engine code 4A-FE Engine VIN code A Naturally Aspirated GAS Fuel delivery: FI B1S1	Upstream
1989	Toyota	Supra	3.0L Inline engine 6 cylinders 3.26" bore 3.58" stroke Engine code 7M-GE Engine VIN code M Naturally Aspirated GAS Non Calif-ESV	Upstream
1988	Chevrolet	Nova	1.6L Inline engine 4 cylinders 3.07" bore 3.29" stroke Fuel delivery: CARB B1S1	Upstream
1988	Toyota	4Runner	2.4L Inline engine 4 cylinders 3.62" bore 3.50" stroke Engine code 22R-TEC Engine VIN code R Turbocharged GAS B1S1	Upstream
1988	Toyota	Corolla	1.6L Inline engine 4 cylinders 3.18" bore 3.03" stroke Engine code 4A-FE Engine VIN code A Naturally Aspirated GAS Fuel delivery: FI B1S1	Upstream
1988	Toyota	Corolla	1.6L Inline engine 4 cylinders 3.18" bore 3.03" stroke Engine code 4ALC Engine VIN code A Naturally Aspirated GAS Fuel delivery: CARB B1S1	Upstream
1988	Toyota	Cressida	2.8L Inline engine 6 cylinders 3.26" bore 3.34" stroke Engine code 5M-GE Engine VIN code M Naturally Aspirated GAS	Upstream
1988	Toyota	Pickup	2.4L Inline engine 4 cylinders 3.62" bore 3.50" stroke Engine code 22R-TEC Engine VIN code R Turbocharged GAS Fuel delivery: FI B1S1	Upstream
1988	Toyota	Tercel	1.5L Inline engine 4 cylinders 3.05" bore 3.03" stroke Engine code 3AC Engine VIN code A Naturally Aspirated GAS B1S1	Upstream
1987	Chevrolet	Nova	1.6L Inline engine 4 cylinders 3.07" bore 3.29" stroke B1S1	Upstream
1987	Toyota	4Runner	2.4L Inline engine 4 cylinders 3.62" bore 3.50" stroke Engine code 22R-TEC Engine VIN code R Turbocharged GAS B1S1	Upstream
1987	Toyota	Corolla	1.6L Inline engine 4 cylinders 3.18" bore 3.03" stroke Engine code 4AC Engine VIN code A Naturally Aspirated GAS Fuel delivery: CARB B1S1	Upstream
1987	Toyota	Corolla	1.6L Inline engine 4 cylinders 3.18" bore 3.03" stroke Engine code 4ALC Engine VIN code A Naturally Aspirated GAS Fuel delivery: CARB B1S1	Upstream
1987	Toyota	Cressida	2.8L Inline engine 6 cylinders 3.26" bore 3.34" stroke Engine code 5M-GE Engine VIN code M Naturally Aspirated GAS	Upstream
1987	Toyota	MR2	1.6L Inline engine 4 cylinders 3.18" bore 3.03" stroke Engine code 4A-GELC Engine VIN code A Naturally Aspirated GAS B1S1	Upstream
1987	Toyota	Pickup	2.4L Inline engine 4 cylinders 3.62" bore 3.50" stroke Engine code 22R-TEC Engine VIN code R Turbocharged GAS B1S1	Upstream
1987	Toyota	Tercel	1.5L Inline engine 4 cylinders 3.05" bore 3.03" stroke Engine code 3AC Engine VIN code A Naturally Aspirated GAS B1S1	Upstream
1987	Toyota	Van	2.2L Inline engine 4 cylinders 3.59" bore 3.39" stroke Engine code 4YEC Engine VIN code Y Naturally Aspirated GAS Automatic B1S1	Upstream
1986	Chevrolet	Nova	1.6L Inline engine 4 cylinders 3.07" bore 3.29" stroke B1S1	Upstream
1986	Toyota	4Runner	2.4L Inline engine 4 cylinders 3.62" bore 3.50" stroke Engine code 22R-TEC Engine VIN code R Turbocharged GAS B1S1	Upstream
1986	Toyota	Celica	2.8L Inline engine 6 cylinders 3.26" bore 3.34" stroke Engine code 5M-GE Engine VIN code M Naturally Aspirated GAS	Upstream
1986	Toyota	Corolla	1.6L Inline engine 4 cylinders 3.18" bore 3.03" stroke Engine code 4AC Engine VIN code A Naturally Aspirated GAS Fuel delivery: CARB B1S1	Upstream
1986	Toyota	Corolla	1.6L Inline engine 4 cylinders 3.18" bore 3.03" stroke Engine code 4ALC Engine VIN code A Naturally Aspirated GAS Fuel delivery: CARB B1S1	Upstream
1986	Toyota	Cressida	2.8L Inline engine 6 cylinders 3.26" bore 3.34" stroke Engine code 5M-GE Engine VIN code M Naturally Aspirated GAS	Upstream
1986	Toyota	MR2	1.6L Inline engine 4 cylinders 3.18" bore 3.03" stroke Engine code 4A-GELC Engine VIN code A Naturally Aspirated GAS B1S1	Upstream
1986	Toyota	Pickup	2.4L Inline engine 4 cylinders 3.62" bore 3.50" stroke Engine code 22R-TEC Engine VIN code R Turbocharged GAS B1S1	Upstream
1986	Toyota	Tercel	1.5L Inline engine 4 cylinders 3.05" bore 3.03" stroke Engine code 3AC Engine VIN code A Naturally Aspirated GAS B1S1	Upstream
1985	Chevrolet	Nova	1.6L Inline engine 4 cylinders 3.07" bore 3.29" stroke B1S1	Upstream
1985	Toyota	4Runner	2.4L Inline engine 4 cylinders 3.62" bore 3.50" stroke Engine code 22R-TEC Engine VIN code R Turbocharged GAS B1S1	Upstream
1985	Toyota	Celica	2.8L Inline engine 6 cylinders 3.26" bore 3.34" stroke Engine code 5M-GE Engine VIN code M Naturally Aspirated GAS	Upstream
1985	Toyota	Corolla	1.6L Inline engine 4 cylinders 3.18" bore 3.03" stroke Engine code 4AC Engine VIN code A Naturally Aspirated GAS Fuel delivery: CARB B1S1	Upstream
1985	Toyota	Corolla	1.6L Inline engine 4 cylinders 3.18" bore 3.03" stroke Engine code 4ALC Engine VIN code A Naturally Aspirated GAS Fuel delivery: CARB B1S1	Upstream
1985	Toyota	Cressida	2.8L Inline engine 6 cylinders 3.26" bore 3.34" stroke Engine code 5M-GE Engine VIN code M Naturally Aspirated GAS	Upstream
1985	Toyota	Land Cruiser	4.2L Inline engine 6 cylinders 3.70" bore 4.00" stroke To 04/1985	Upstream
1985	Toyota	MR2	1.6L Inline engine 4 cylinders 3.18" bore 3.03" stroke Engine code 4A-GELC Engine VIN code A Naturally Aspirated GAS B1S1	Upstream
1985	Toyota	Pickup	2.4L Inline engine 4 cylinders 3.62" bore 3.50" stroke Engine code 22R-TEC Engine VIN code R Turbocharged GAS Fuel delivery: FI B1S1	Upstream
1985	Toyota	Tercel	1.5L Inline engine 4 cylinders 3.05" bore 3.03" stroke Engine code 3AC Engine VIN code A Naturally Aspirated GAS B1S1	Upstream
1984	Toyota	Celica	2.8L Inline engine 6 cylinders 3.26" bore 3.34" stroke Engine code 5M-GE Engine VIN code M Naturally Aspirated GAS	Upstream
1984	Toyota	Corolla	1.6L Inline engine 4 cylinders 3.18" bore 3.03" stroke Engine code 4AC Engine VIN code A Naturally Aspirated GAS Fuel delivery: CARB B1S1	Upstream
1984	Toyota	Corolla	1.6L Inline engine 4 cylinders 3.18" bore 3.03" stroke Engine code 4ALC Engine VIN code A Naturally Aspirated GAS Fuel delivery: CARB B1S1	Upstream
1984	Toyota	Cressida	2.8L Inline engine 6 cylinders 3.26" bore 3.34" stroke Engine code 5M-GE Engine VIN code M Naturally Aspirated GAS	Upstream
1984	Toyota	Tercel	1.5L Inline engine 4 cylinders 3.05" bore 3.03" stroke Engine code 3AC Engine VIN code A Naturally Aspirated GAS B1S1	Upstream
1983	Toyota	Celica	2.8L Inline engine 6 cylinders 3.26" bore 3.34" stroke Engine code 5M-GE Engine VIN code M Naturally Aspirated GAS	Upstream
1983	Toyota	Corolla	1.6L Inline engine 4 cylinders 3.18" bore 3.03" stroke Engine code 4AC Engine VIN code A Naturally Aspirated GAS B1S1	Upstream
1983	Toyota	Cressida	2.8L Inline engine 6 cylinders 3.26" bore 3.34" stroke Engine code 5M-GE Engine VIN code M Naturally Aspirated GAS	Upstream
1983	Toyota	Tercel	1.5L Inline engine 4 cylinders 3.05" bore 3.03" stroke Engine code 3AC Engine VIN code A Naturally Aspirated GAS B1S1	Upstream
1982	Toyota	Celica	2.8L Inline engine 6 cylinders 3.26" bore 3.34" stroke Engine code 5M-GE Engine VIN code M Naturally Aspirated GAS	Upstream
1982	Toyota	Cressida	2.8L Inline engine 6 cylinders 3.26" bore 3.34" stroke Engine code 5ME Engine VIN code M Naturally Aspirated GAS	Upstream
1981	Toyota	Celica	2.8L Inline engine 6 cylinders 3.26" bore 3.34" stroke Engine code 5ME Engine VIN code M Naturally Aspirated GAS	Upstream
1981	Toyota	Cressida	2.8L Inline engine 6 cylinders 3.26" bore 3.34" stroke Engine code 5ME Engine VIN code M Naturally Aspirated GAS	Upstream

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