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.

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Results 1 - 25 of 1948

Holley Sniper EFI Oxygen Sensors 554-155

Oxygen Sensors, Holley EFI, Replacement, O2 Sensor, Bosch LSU Style, 3-wire, Thread-in, Wire Harness, for Sniper EFI or Terminator X Systems, Each

Part Number: HLY-554-155

4.5 out of 5 stars ( 54 )

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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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Holley EFI O2 Sensors 554-100

Oxygen Sensors, Holley EFI, NTK, Wideband, 18mm x 1.5 Thread, 7 Wire Connection, 0-1 V, Wire Harness, 8-pin, Rectangular Plug, Each

Part Number: HLY-554-100

4.81 out of 5 stars ( 16 )

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Bosch Premium Original Equipment-Type Oxygen Sensors 17025

Oxygen Sensor, OE Replacement, Each

Part Number: BCH-17025

4.88 out of 5 stars ( 42 )

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Holley EFI O2 Sensors 554-101

Oxygen Sensor, Bosch LSU4, Wideband, Thread-in, 7-Wire, 14 in. Long 8-pin, Rectangular Plug, Each

Part Number: HLY-554-101

3.3 out of 5 stars ( 20 )

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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 )

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Innovate Oxygen Sensors 3888

Oxygen Sensor, Data Acquisition Component, Each

Part Number: INN-38880

4.2 out of 5 stars ( 20 )

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ACDelco GM Genuine Parts Oxygen Sensors for 2016-2024 CAMARO, 2015-2019 CORVETTE, 2016-2019 CTS - 12655677

Oxygen Sensor, Cadillac, Chevy, Each

Part Number: ADO-12655677

5.0 out of 5 stars ( 2 )

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Racepak AF1 Single Channel Air Fuel Sensor Packages 220-VM-AF1

Data Acquisition, Racepak, AF1 Single Channel Wideband Controller, Kit

Part Number: RPK-220-VM-AF1

Not Yet Reviewed

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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 ( 2 )

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FiTech Oxygen Sensors 60017

Oxygen Sensors, 6-wire, Thread-in, 6 Rectangle Female Plug Style, Replacement Oxygen Sensor for FiTech EFI Systems, Each

Part Number: FIF-60017

5.0 out of 5 stars ( 6 )

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FuelTech WB-O2 Sensors 3022000965

FuelTech WB-O2 Sensors 3022000965

Oxygen Sensor, Bosch WB-O2 Sensor, Each

Part Number: FCH-3022000965

Not Yet Reviewed

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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 )

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Racepak Air/Fuel Sensors 810-SN-AFAMP

Sensor, Air/Fuel, Each

Part Number: RPK-810-SN-AFAMP

Not Yet Reviewed

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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

4.2 out of 5 stars ( 5 )

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ACDelco GM Genuine Parts Oxygen Sensors 12659516

Oxygen Sensor, 4-Wire, 0-1 V, Heated, Cadillac, Chevy, GMC, Each

Part Number: ADO-12659516

5.0 out of 5 stars ( 4 )

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AEM Electronics Wideband UEGO Sensors 30-2001

Oxygen Sensor, Replacement Wideband, 5-Wire, 0-5 V, Universal, Each

Part Number: AVM-30-2001

4.62 out of 5 stars ( 21 )

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 ( 3 )

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ACDelco GM Genuine Parts Oxygen Sensors 12617332

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

Part Number: ADO-213-4408

4.67 out of 5 stars ( 3 )

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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 )

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Haltech Wideband Oxygen Sensors HT-010718

Oxygen Sensor, O2 Sensor, Thread In, LSU 4.9, Wideband, Universal, Each

Part Number: HTH-HT-010718

5.0 out of 5 stars ( 1 )

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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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Bosch Premium Original Equipment-Type Oxygen Sensors 17212

Oxygen Sensors, Premium Original Equipment-Type, Dodge, Ram, 6.7L Diesel, Each

Part Number: BCH-17212

Not Yet Reviewed

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Bosch Premium Original Equipment-Type Oxygen Sensors 13444

Oxygen Sensor, OE Replacement, Each

Part Number: BCH-13444

5.0 out of 5 stars ( 4 )

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Innovate Air/Fuel Ratio Monitor Accessories 3737

Data Acquisition, Oxygen Sensor, Bosch LSU 4.2, UEGO, 0.0 to 5.0 V, Wideband, Each

Part Number: INN-37370

4.81 out of 5 stars ( 16 )

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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

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