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

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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...

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 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

Results 1 - 25 of 310

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

Part Number: AVM-30-2001

4.62 out of 5 stars ( 21 )

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

Part Number: DTT-115001

5.0 out of 5 stars ( 1 )

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Power Grid O2 Module, Wideband Oxygen Sensor, MSD Power Grid, NTK, Each

Part Number: MSD-7766

1.0 out of 5 stars ( 1 )

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Gauge Sending Unit, Oxygen Sensor, Wideband, Electrical, M18 x 1.5, Universal, Each

Part Number: ATM-2243

4.59 out of 5 stars ( 17 )

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O2 Sensor, LSU4 Wideband, 5-Wire, Male 6-Pin Plug, 18mm, Each

Part Number: FST-170408

4.78 out of 5 stars ( 9 )

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Oxygen Sensor, Power Grid Wide Band, Sensor 2, 7 Wire, Includes 18 in. Extension Harness, Weld-In Bung, Use with 7766 Wide Band Module, Kit

Part Number: MSD-2273

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Sensors, Replacement, O2 Sensor, Bosch, Wideband, 4-Wire, 0-1V Range, Thread-in Style, 4 Flat Female Harness, for Commander 950, Each

Part Number: HLY-534-198

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Oxygen Sensor, 5-wire, Wideband, LHA-Type, Thread-in, Wiring Harness, Designed for F.A.S.T. XFI Systems, Each

Part Number: FST-301422

5.0 out of 5 stars ( 1 )

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Oxygen Sensor, Power Grid Wide Band, Sensor 2, 5 Wire, Replacement Sensor for Use with 7766 Wide Band Module, Each

Part Number: MSD-2268

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Gauge Sending Units, Replacement, Air/Fuel Ratio - Wideband Gauge Type, Electrical, M18 x 1.5 Thread, Fits Wide Band Pro Plus Oxygen Sensor Gauges,Kit

Part Number: ATM-5316

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

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

Part Number: RPK-220-VM-AF1

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Oxygen Sensor, O2 Sensor, 5-Wire, 0-1 V, Thread In, Wideband, Each

Part Number: SUM-196004

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Oxygen Sensor, O2 Sensor, 5-Wire, 0-5 V, Thread In, 3 Flat Male Plug, LSU 4, Wideband, Universal, Each

Part Number: SUM-196002

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Data Acquisition Components, Wideband Oxygen Sensor, LSU 4.9, 8 ft., Each

Part Number: INN-38970

5.0 out of 5 stars ( 4 )

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Data Acquisition Components, Wideband Oxygen Sensor, LSU 4.9, 3 ft., Each

Part Number: INN-38960

5.0 out of 5 stars ( 1 )

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WIDEBAND O2 SENSOR FOR ALCOHOL

Part Number: FCH-5005100011

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Oxygen Sensor, OE Style, Heated, Thread-In Mounting, for use on Acura®, Honda®, Each

Part Number: DNP-234-9005

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 3, 2026 if ordered today

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Estimated Ship Date: Feb 3, 2026 if ordered today

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, for use on Acura®, Honda®, Each

Part Number: DNP-234-9064

Not Yet Reviewed

Estimated Ship Date: Feb 3, 2026 if ordered today

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Estimated Ship Date: Feb 3, 2026 if ordered today

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, for use on Acura®, Honda®, Each

Part Number: DNP-234-9131

Not Yet Reviewed

Estimated Ship Date: Feb 3, 2026 if ordered today

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Estimated Ship Date: Feb 3, 2026 if ordered today

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, for use on Acura®, Honda®, Each

Part Number: DNP-234-9091

Not Yet Reviewed

Estimated Ship Date: Feb 3, 2026 if ordered today

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Estimated Ship Date: Feb 3, 2026 if ordered today

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, for use on Acura®, Honda®, Each

Part Number: DNP-234-9118

Not Yet Reviewed

Estimated Ship Date: Feb 3, 2026 if ordered today

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