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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.
Showing In Stock Items. Show All 10 Items.
Oxygen Sensor, 4-wire, Thread-in, Toyota, Each
Part Number: DFP-ES20034
Not Yet Reviewed
Estimated Ship Date: Apr 24, 2026 if ordered today
Estimated Ship Date: Apr 24, 2026 if ordered today
Oxygen Sensor, 4-wire, Thread-in, Ford, Mazda, Suzuki, Each
Part Number: DFP-ES20037
Not Yet Reviewed
Estimated Ship Date: Apr 24, 2026 if ordered today
Estimated Ship Date: Apr 24, 2026 if ordered today
Oxygen Sensor, 4-wire, Thread-in, Toyota, Each
Part Number: DFP-ES20033
Not Yet Reviewed
Estimated Ship Date: Apr 24, 2026 if ordered today
Estimated Ship Date: Apr 24, 2026 if ordered today
Oxygen Sensor, 4-wire, Thread-in, Chevy, Suzuki, Each
Part Number: DFP-ES20031
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
Oxygen Sensor, 4-wire, Thread-in, Toyota, Each
Part Number: DFP-ES20036
Not Yet Reviewed
Estimated Ship Date: Apr 24, 2026 if ordered today
Estimated Ship Date: Apr 24, 2026 if ordered today
Oxygen Sensor, 4-wire, Thread-in, Toyota, Each
Part Number: DFP-ES20035
Not Yet Reviewed
Estimated Ship Date: Apr 24, 2026 if ordered today
Estimated Ship Date: Apr 24, 2026 if ordered today
Oxygen Sensor, 4-wire, Thread-in, Lexus, Toyota, Each
Part Number: DFP-ES20032
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
Oxygen Sensor, 4-wire, Thread-in, Ford, Mazda, Each
Part Number: DFP-ES20038
Not Yet Reviewed
Estimated Ship Date: Apr 24, 2026 if ordered today
Estimated Ship Date: Apr 24, 2026 if ordered today
Oxygen Sensor, 4-wire, Thread-in, Ford, Mercury, Mazda, Each
Part Number: DFP-ES20039
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
Oxygen Sensor, 4-wire, Thread-in, Dodge, Eagle, Mitsubishi, Each
Part Number: DFP-ES20030
Not Yet Reviewed
Estimated Ship Date: Apr 24, 2026 if ordered today
Estimated Ship Date: Apr 24, 2026 if ordered today
