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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 502

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, 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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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, FAE Wideband, Each

Part Number: AVM-30-2404

Not Yet Reviewed

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Oxygen Sensor, Wideband Hardware Pack, Bolt-in, Includes Bosch LSU 4.9 Sensor, HT-010726 Adaptor Harness, Bung, Kit

Part Number: HTH-HT-010746

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Oxygen Sensor, O2 Sensor, Thread In, LSU 4.2, Wideband, Universal, Each

Part Number: HTH-HT-010714

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Data Acquisition Component, Wideband Oxygen Sensor, Bosch LSU 4.9, Each

Part Number: AAG-X05LSU490

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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, Wideband, 5-wire, Bolt-in, Each

Part Number: HTH-HT-010712

Not Yet Reviewed

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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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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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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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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: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

Oxygen Sensor, Wideband, 8 ft. Cable, Kit

Part Number: ATM-9133

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Sensor, UEGO, Wideband, Thread-in, Each

Part Number: AVM-30-2063

5.0 out of 5 stars ( 1 )

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O2 Sensor, LSU 4.9 Wideband, 5-Wire, 6 Pin Plug, Each

Part Number: FST-170413

Not Yet Reviewed

Estimated Ship Date: Apr 24, 2026 if ordered today

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Estimated Ship Date: Apr 24, 2026 if ordered today

Oxygen Sensor, Wideband Hardware Pack, Bolt-in, Includes NTK LZA08-H5 Sensor, NTK To DTM-6 Harness, Bung, Kit

Part Number: HTH-HT-010747

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

SENSOR, WIDEBAND EXHAUST GAS OXYGEN BOSCH LSU 4.2 QD2

Part Number: EDL-91171

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 17, 2026 if ordered today

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Estimated Ship Date: Mar 17, 2026 if ordered today

Oxygen Sensor, 5-Wire, 0-1 V, Cadillac, Saturn, Catera, L300, L-Series, 3.0L, Front, Each

Part Number: NGK-24313

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

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

Part Number: MSD-2267

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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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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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 )

Estimated Ship Date: Tomorrow

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