O2 Sensors, Oxygen Sensors - Narrowband, Wideband, Upstream, Downstream, Denso, O2 Sensors

The oxygen sensor, or O2 sensor, measures the amount of oxygen in your vehicle’s exhaust gases. Your engine’s computer uses this data to help figure out...

The oxygen sensor, or O2 sensor, measures the amount of oxygen in your vehicle’s exhaust gases. Your engine’s computer uses this data to help figure out the current air/fuel ratio, which allows it to maintain fuel efficiency and emissions standards. If your ride starts running rough, you may need to clean or replace this important sensor. Fortunately, you’re at the right place to get the replacement oxygen sensor you need—Summit Racing Equipment!

Narrowband vs. Wideband

A narrowband O2 sensor only informs the computer if your engine is running rich or lean. A wideband sensor measures how rich or...

Narrowband vs. Wideband

A narrowband O2 sensor only informs the computer if your engine is running rich or lean. A wideband sensor measures how rich or how lean the ratio is.

Upstream vs. Downstream

Upstream O2 sensors are positioned before the catalytic converter; downstream sensors are after it.

Top Brands

Oxygen (O2) sensors are crucial to your fuel-injected car, so Summit only carries reliable brands, including, Bosch, NTK, ACDelco, Denso, Holley, and E3 Spark Plugs.

Individual Parts

Part Groups

Results 1 - 25 of 38

Denso Oxygen Sensors 234-4209

Oxygen Sensor, Universal, Heated, Thread-In Mounting, Each

Part Number: DNP-234-4209

3.6 out of 5 stars ( 5 )

Estimated Ship Date: Today

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Bosch Premium Universal Type Oxygen Sensors 15733

Oxygen Sensor, Universal Replacement, OE SmartLink™, Each

Part Number: BCH-15733

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Bosch Premium Universal Type Oxygen Sensors 11027

Oxygen Sensor, Universal Replacement, Each

Part Number: BCH-11027

5.0 out of 5 stars ( 3 )

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Denso Oxygen Sensors 234-4626

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, Lexus, Toyota, Each

Part Number: DNP-234-4626

Not Yet Reviewed

Estimated Ship Date: Aug 25, 2025 if ordered today

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Estimated Ship Date: Aug 25, 2025 if ordered today

Denso Oxygen Sensors 234-4630

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, Lexus, Toyota, Each

Part Number: DNP-234-4630

Not Yet Reviewed

Estimated Ship Date: Aug 25, 2025 if ordered today

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Estimated Ship Date: Aug 25, 2025 if ordered today

Denso Oxygen Sensors for 2000-2005 CELICA, 1998-2000 SC300 - 234-4139

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, Lexus, Toyota, Each

Part Number: DNP-234-4139

Not Yet Reviewed

Estimated Ship Date: Aug 25, 2025 if ordered today

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Estimated Ship Date: Aug 25, 2025 if ordered today

Denso Oxygen Sensors 234-4206

Oxygen Sensor, Universal, Heated, Flange Mount, Lexus, Toyota, Each

Part Number: DNP-234-4206

Not Yet Reviewed

Estimated Ship Date: Aug 25, 2025 if ordered today

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Estimated Ship Date: Aug 25, 2025 if ordered today

Delphi Oxygen Sensors ES20059

Oxygen Sensor, 4-wire, Thread-in, Lexus, Toyota, Each

Part Number: DFP-ES20059

Not Yet Reviewed

Estimated Ship Date: Aug 19, 2025 if ordered today

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Estimated Ship Date: Aug 19, 2025 if ordered today

Delphi Oxygen Sensors ES20192

Oxygen Sensor, 4-wire, Thread-in, Lexus, Toyota, Each

Part Number: DFP-ES20192

Not Yet Reviewed

Estimated Ship Date: Aug 19, 2025 if ordered today

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Estimated Ship Date: Aug 19, 2025 if ordered today

Delphi Oxygen Sensors ES20360

Oxygen Sensor, 4-wire, Thread-in, Toyota, Each

Part Number: DFP-ES20360

Not Yet Reviewed

Estimated Ship Date: Aug 19, 2025 if ordered today

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Estimated Ship Date: Aug 19, 2025 if ordered today

Delphi Oxygen Sensors ES20224

Oxygen Sensor, 4-wire, Thread-in, Lexus, Toyota, Each

Part Number: DFP-ES20224

Not Yet Reviewed

Estimated Ship Date: Aug 19, 2025 if ordered today

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Estimated Ship Date: Aug 19, 2025 if ordered today

Delphi Oxygen Sensors ES20157

Oxygen Sensor, 4-wire, Thread-in, Lexus, Pontiac, Toyota, Each

Part Number: DFP-ES20157

Not Yet Reviewed

Estimated Ship Date: Aug 19, 2025 if ordered today

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Estimated Ship Date: Aug 19, 2025 if ordered today

Delphi Oxygen Sensors ES10952

Oxygen Sensor, 1-wire, Thread-in, Lexus, Toyota, Each

Part Number: DFP-ES10952

Not Yet Reviewed

Estimated Ship Date: Aug 19, 2025 if ordered today

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Estimated Ship Date: Aug 19, 2025 if ordered today

Denso Oxygen Sensors for 1998-2000 RAV4, 1992-1997 SC300 - 234-4214

Oxygen Sensor, OE Style, Heated, Flange Mount, Lexus, Toyota, Each

Part Number: DNP-234-4214

Not Yet Reviewed

Estimated Ship Date: Aug 25, 2025 if ordered today

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Estimated Ship Date: Aug 25, 2025 if ordered today

Bosch Premium Original Equipment-Type Oxygen Sensors for 1998-2000 SC300, 1998 SUPRA - 13907