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 - 11 of 11

Bosch Premium Universal Type Oxygen Sensors 15730

Oxygen Sensor, Universal Replacement, OE SmartLink™, Each

Part Number: BCH-15730

2.2 out of 5 stars ( 5 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Denso Air/Fuel Ratio Sensors 234-9047

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

Part Number: DNP-234-9047

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 ES10935

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

Part Number: DFP-ES10935

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 ES20223

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

Part Number: DFP-ES20223

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 234-4447

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, Subaru, Each

Part Number: DNP-234-4447

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 15025

Oxygen Sensors, Premium Original Equipment-Type, Saab, Subaru, Each

Part Number: BCH-15025

Not Yet Reviewed

Estimated Ship Date: Sep 10, 2025 if ordered today

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Estimated Ship Date: Sep 10, 2025 if ordered today

Spectra Premium Oxygen Sensors OS5322

OXYGEN SENSOR

Part Number: SGT-OS5322

Not Yet Reviewed

Estimated Ship Date: Aug 8, 2025 if ordered today

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Estimated Ship Date: Aug 8, 2025 if ordered today

Bosch Premium Original Equipment-Type Oxygen Sensors 15964

Oxygen Sensors, Premium Original Equipment-Type, Lexus, Subaru, Toyota, Each

Part Number: BCH-15964

Not Yet Reviewed

Estimated Ship Date: Sep 10, 2025 if ordered today

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Estimated Ship Date: Sep 10, 2025 if ordered today

Bosch Premium Original Equipment-Type Oxygen Sensors 15028

Oxygen Sensors, Premium Original Equipment-Type, Saab, Subaru, Each

Part Number: BCH-15028

Not Yet Reviewed

Estimated Ship Date: Sep 10, 2025 if ordered today

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Estimated Ship Date: Sep 10, 2025 if ordered today

NTK Oxygen Sensors 24759

NTK OE Type Air-Fuel Ratio Sensor

Part Number: NGK-24759

Not Yet Reviewed

Estimated Ship Date: Oct 6, 2025 if ordered today

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Estimated Ship Date: Oct 6, 2025 if ordered today

NTK Oxygen Sensors 24651

Oxygen Sensor, 4-Wire, 0-1 V, Toyota, 4.0L, Each

Part Number: NGK-24651

Not Yet Reviewed

Estimated Ship Date: Oct 6, 2025 if ordered today

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Estimated Ship Date: Oct 6, 2025 if ordered today

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