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 2000 +

AEM Electronics Replacement Wideband UEGO Controller Air/Fuel Ratio Gauge Components 30-2004

Oxygen Sensor, Replacement, Wideband UEGO, Air/Fuel Ratio Gauge Component, 5-wire, Thread-in, 0-5 V, 23.00 in. Length, Each

Part Number: AVM-30-2004

4.0 out of 5 stars ( 23 )

Estimated Ship Date: Tomorrow

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Summit Racing™ Oxygen Sensors SUM-196000

Oxygen Sensor, O2 Sensor, 5-Wire, 0-5 V, Thread In, LSU 4.2, Wideband, Universal, Each

Part Number: SUM-196000

5.0 out of 5 stars ( 1 )

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ACDelco GM Genuine Parts Oxygen Sensors for 2005-2013 CORVETTE - 12581966

Oxygen Sensor, Thread-in, 18mm x 1.5, Chevy, Upstream, Each

Part Number: ADO-213-1694

5.0 out of 5 stars ( 8 )

Estimated Ship Date: Tomorrow

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Denso Oxygen Sensors 234-4337

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, Buick, Cadillac, Chevrolet, GMC, Hummer, Each

Part Number: DNP-234-4337

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

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ACDelco GM Genuine Parts Oxygen Sensors 12655677

Oxygen Sensor, Cadillac, Chevy, Each

Part Number: ADO-12655677

5.0 out of 5 stars ( 1 )

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FuelTech WB-O2 Sensors 3022000965

Oxygen Sensor, Bosch WB-O2 Sensor, Each

Part Number: FCH-3022000965

Not Yet Reviewed

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Denso Oxygen Sensors 234-4668

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, Buick, Cadillac, Chevrolet, GMC, Isuzu, Pontiac, Saturn, Each

Part Number: DNP-234-4668

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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ACDelco GM Genuine Parts Oxygen Sensors 19178961

Oxygen Sensor, 4-wire, Cadillac, Chevy, GMC, Each

Part Number: ADO-AFS138

5.0 out of 5 stars ( 2 )

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Denso Oxygen Sensors for 2005-2013 CORVETTE, 2006-2007 HHR - 234-4332

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

Part Number: DNP-234-4332

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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NTK Oxygen Sensors for 1992-2000 CIVIC - 24300

Oxygen Sensor, 5-Wire, 0-1 V, for use on Honda®, Each

Part Number: NGK-24300

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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ACDelco GM Genuine Parts Oxygen Sensors 19178924

Oxygen Sensor, Thread-in, Buick, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: ADO-AFS123

5.0 out of 5 stars ( 10 )

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ACDelco GM Genuine Parts Oxygen Sensors 19178930

Oxygen Sensor, 4-Wire, 0-1 V, Pontiac, Chevy, Small Block, V8, Front, Each

Part Number: ADO-AFS75

4.25 out of 5 stars ( 8 )

Estimated Ship Date: Tomorrow

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ACDelco GM Genuine Parts Oxygen Sensors for 1998-2002 CAMARO, FIREBIRD - 19355308

Oxygen Sensor, 4-wire, Thread-in, Wiring Harness, Cadillac, Chevy, Pontiac, Each

Part Number: ADO-AFS98

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

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NTK Oxygen Sensors 24302

Oxygen Sensor, 5-Wire, 0-1 V, Front, Acura®, Honda®, Saturn, V6, Each

Part Number: NGK-24302

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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NTK Oxygen Sensors 23179

Oxygen Sensor, 4-wire, Thread-in, Chrysler, Dodge, Eagle, Jeep, Plymouth, Each

Part Number: NGK-23179

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

ACDelco GM Genuine Parts Oxygen Sensors 12657188

Oxygen Sensor, 4-wire, Cadillac, Chevy, GMC, Each

Part Number: ADO-12657188

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

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ACDelco GM Genuine Parts Oxygen Sensors 12587785

Oxygen Sensor, Thread-in, Heated, Each

Part Number: ADO-213-1702

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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AEM Induction FAE Wideband Oxygen Sensors 30-2404

Oxygen Sensor, FAE Wideband, Each

Part Number: AVM-30-2404

Not Yet Reviewed

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Denso Oxygen Sensors 234-4018

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, Buick, Cadillac, Chevrolet, GMC, Oldsmobile, Pontiac, Each

Part Number: DNP-234-4018

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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Bosch Premium Original Equipment-Type Oxygen Sensors 15703

Oxygen Sensor, OE Replacement, Each

Part Number: BCH-15703

4.95 out of 5 stars ( 22 )

Estimated Ship Date: Tomorrow

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ACDelco GM Genuine Parts Oxygen Sensors 19355306

Oxygen Sensor, 4-wire, Thread-in, 0-1 V, Cadillac, Chevy, GMC, Each

Part Number: ADO-AFS106

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Tomorrow

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Bosch Premium Original Equipment-Type Oxygen Sensors 17014

Oxygen Sensor, OE Replacement, Each

Part Number: BCH-17014

5.0 out of 5 stars ( 3 )

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NTK Oxygen Sensors 23162

Oxygen Sensor, 4-Wire, Chrysler, Dodge, Jeep, Ram, Volkswagen, Each

Part Number: NGK-23162

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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MSD Power Grid Wide Band Oxygen Sensors 2267

Oxygen Sensors, Replacement, Wideband, LSU 4.9, 24.00 in. Length, Each

Part Number: MSD-2267

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Denso Oxygen Sensors 234-4210

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

Part Number: DNP-234-4210

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Bosch Premium Original Equipment-Type Oxygen Sensors 15282

Oxygen Sensors, Premium Original Equipment Type, Buick, Cadillac, Chevy, GMC, Hummer, Saab, Each

Part Number: BCH-15282

Not Yet Reviewed

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