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

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 340

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

Part Number: DTT-115001

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 13, 2025 if ordered today

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Estimated Ship Date: Oct 13, 2025 if ordered today

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

Part Number: HTH-HT-010714

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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: Nov 26, 2025 if ordered today

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Estimated Ship Date: Nov 26, 2025 if ordered today

Sensor, UEGO, Wideband, Thread-in, Each

Part Number: AVM-30-2063

5.0 out of 5 stars ( 1 )

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Oxygen Sensor, Wideband, 8 ft. Cable, Kit

Part Number: ATM-9133

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

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: Oct 6, 2025 if ordered today

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

Part Number: HLY-554-101

3.21 out of 5 stars ( 19 )

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

Part Number: RPK-220-VM-AF1

Not Yet Reviewed

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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

4.8 out of 5 stars ( 15 )

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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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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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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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