Oxygen Sensors

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Kraftwerks O2 Sensor Bypass for Polaris RZR (159-17-0001) Kraftwerks O2 Sensor Bypass for Polaris RZR (159-17-0001) Quick View

Kraftwerks O2 Sensor Bypass for Polaris RZR (159-17-0001)

$16.79
$15.51
GTFR_159-17-0001
Emission Control Kraftwerks Oxygen Sensors
The Kraftwerks Performance O2 Sensor Bypass eliminates the factory narrow-band O2 sensor that is used for minor low speed closed-loop adjustments. Handy when using...
-4%
Skunk2 Racing Alpha Series Race O2 Sensor Extension (201-05-0614) Quick View

Skunk2 Racing Alpha Series Race O2 Sensor Extension (201-05-0614)

$44.09
$41.99
BJWR_201-05-0614
Emission Control Oxygen Sensors Skunk2 Racing
Plug/Play-O2 Sensor Extension. The O2 sensor wire harness extension is designed for 2006-2014 Civic Sis. These extensions are great for installing an aftermarket header...
-14%
Innovate Motorsports O2 Sensor Cable (3828) Quick View

Innovate Motorsports O2 Sensor Cable (3828)

$93.23
$79.25
CLQR_3828
Emission Control Innovate Motorsports Oxygen Sensors
O2 Sensor Cable; For Bosch LSU 4.2 O2 Sensor; 18 ft. Long by Innovate Motorsports. 18 ft sensor cable for use with Bosch LSU...
-10%
AEM Electronics X-Series Inline Wideband UEGO AFR Sensor Controller with X-Digital Technology (30-0310) AEM Electronics X-Series Inline Wideband UEGO AFR Sensor Controller with X-Digital Technology (30-0310) Quick View

AEM Electronics X-Series Inline Wideband UEGO AFR Sensor Controller with X-Digital Technology (30-0310)

$212.00
$189.95
FDDP_30-0310
AEM Electronics Emission Control Oxygen Sensors
AEM’s X-Series Inline Wideband UEGO Air/Fuel Ratio Controllers are built upon unique, patented, 100% digital technology that makes them the fastest responding wideband air/fuel...
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AEM Electronics Bosch LSU 4.9 Wideband UEGO inReplacementin Sensor for Part Numbers 30-0300, 30-0334, 30-0310, 30-0350, 30-4110 and 30-4110NS (30-2004) AEM Electronics Bosch LSU 4.9 Wideband UEGO inReplacementin Sensor for Part Numbers 30-0300, 30-0334, 30-0310, 30-0350, 30-4110 and 30-4110NS (30-2004) Quick View

AEM Electronics Bosch LSU 4.9 Wideband UEGO inReplacementin Sensor for Part Numbers 30-0300, 30-0334, 30-0310, 30-0350, 30-4110 and 30-4110NS (30-2004)

$149.00
$133.95
FDDP_30-2004
AEM Electronics Emission Control Oxygen Sensors
AEM's Bosch 4.2LSU Wideband UEGO O2 replacement sensor kit includes only the sensor (with attached cable and male connector) and is intended to replace...
-22%
1119_v1.jpg 1119_v2.jpg Quick View

BBK 2015 Mustang GT V6 6-Pin Front O2 Sensor Wire Harness Extensions 12 (pair) (1119)

$89.99
$69.99
BGRW_1119
BBK Performance Parts Emission Control Oxygen Sensors
When you install a set of BBK Performance long tube exhaust headers on your muscle car or truck the O2 sensor locations are relocated...
-22%
1110_v1.jpg 1110_v2.jpg Quick View

BBK 11-14 Mustang V6 GT Rear O2 Sensor Wire Harness Extensions 12 (pair) (1110)

$89.99
$69.99
BGRW_1110
BBK Performance Parts Emission Control Oxygen Sensors
BBK Performance oxygen sensor extensions feature OEM Factory connectors on the end of the wiring to allow simple plug in installation to the factory...
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1114_o2extensions_1500x1500_v1.jpg 1114_o2extensions_1500x1500_v3.jpg Quick View

BBK 05-20 Dodge Hellcat 6.2L 6 Pin Front O2 Sensor Wire Harness Extensions 12 (pair) (1114)

$89.99
$69.99
BGRW_1114
BBK Performance Parts Emission Control Oxygen Sensors
BBK Performance oxygen sensor extensions feature OEM Factory connectors on the end of the wiring to allow simple plug in installation to the factory...
-22%
1115_v1.JPG 1115_v2.jpg Quick View

BBK 08-15 GM Corvette Camaro O2 Sensor Wire Harness Extensions 12 (pair) (1115)

$89.99
$69.99
BGRW_1115
BBK Performance Parts Emission Control Oxygen Sensors
Direct fitment for all Camaro / Corvette 6.2 applications - OEM style connectors - Includes 2 harnesses (pair)Features:BBK Performance oxygen sensor extensions feature OEM...
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1118_v1.jpg 1118_v2.jpg Quick View

BBK 05-20 Dodge 4 Pin Square Style O2 Sensor Wire Harness Extensions 12 (pair) (1118)

$89.99
$69.99
BGRW_1118
BBK Performance Parts Emission Control Oxygen Sensors
When you install a set of BBK Performance long tube exhaust headers on your muscle car or truck the O2 sensor locations are relocated...
-22%
1112_v1.jpg 1112_v2.jpg Quick View

BBK 11-14 Mustang GT Front O2 Sensor Wire Harness Extensions 12 (pair) (1112)

$89.99
$69.99
BGRW_1112
BBK Performance Parts Emission Control Oxygen Sensors
BBK Performance oxygen sensor extensions feature OEM Factory connectors on the end of the wiring to allow simple plug in installation to the factory...
-22%
1111_v1.jpg 1111_v2.jpg Quick View

BBK 11-14 Mustang V6 Front O2 Sensor Wire Harness Extensions 24 (pair) (1111)

$89.99
$69.99
BGRW_1111
BBK Performance Parts Emission Control Oxygen Sensors
BBK Performance oxygen sensor extensions feature OEM Factory connectors on the end of the wiring to allow simple plug in installation to the factory...
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1121_O2Extensions_1500x1500_v1.jpg 1121_O2Extensions_1500x1500_v2.jpg Quick View

BBK 18-20 Ford Mustang GT O2 Sensor Wire Harness Extensions 16in (Pair) (1121)

$94.99
$74.99
BGRW_1121
BBK Performance Parts Emission Control Oxygen Sensors
When you install a set of BBK Performance long tube exhaust headers on your muscle car or truck the O2 sensor locations are relocated...
-22%
1116_v1.JPG 1116_v2.jpg Quick View

BBK 08-15 GM Corvette Camaro O2 Sensor Wire Harness Extensions 36 (pair) (1116)

$89.99
$69.99
BGRW_1116
BBK Performance Parts Emission Control Oxygen Sensors
Direct fitment for all Camaro / Corvette 6.2 applications - OEM style connectors - Includes 2 harnesses (pair)Features:BBK Performance oxygen sensor extensions feature OEM...
-22%
11181_v3.jpg 11181_v4.jpg Quick View

BBK 05-20 Dodge 6.1L/6.2L/6.4L Rear O2 Sensor Extensions 4 Pin Square Style 24in (pair) (11181)

$89.99
$69.99
BGRW_11181
BBK Performance Parts Emission Control Oxygen Sensors
When you install a set of BBK Performance long tube exhaust headers on your muscle car or truck the O2 sensor locations are relocated...
-22%
1113_O2Extensions_1500x1500_v1.jpg 1113_O2Extensions_1500x1500_v4.jpg Quick View

BBK 16-20 Chevrolet Camaro 6.2L SS O2 Sensor Extensions (AUTO ONLY Drivers Side 1 Front & 1 Rear) (1113)

$89.99
$69.99
BGRW_1113
BBK Performance Parts Emission Control Oxygen Sensors
BBK Performance oxygen sensor extensions feature OEM Factory connectors on the end of the wiring to allow simple plug in installation to the factory...
-22%
1117_v1.jpg 1117_v2.jpg Quick View

BBK 96-04 Dodge 4 Pin Round Style O2 Sensor Wire Harness Extensions 12 (pair) (1117)

$89.99
$69.99
BGRW_1117
BBK Performance Parts Emission Control Oxygen Sensors
When you install a set of BBK Performance long tube exhaust headers on your muscle car or truck the O2 sensor locations are relocated...
-22%
1122_O2Extensions_1500x1500_v1.jpg 1122_O2Extensions_1500x1500_v4.jpg Quick View

BBK 16-20 GM Camaro 6.2L SS Manual Trans O2 Sensor Wire Harness Extensions (Front) (1122)

$89.99
$69.99
BGRW_1122
BBK Performance Parts Emission Control Oxygen Sensors
When you install a set of BBK Performance long tube exhaust headers on your muscle car or truck the O2 sensor locations are relocated...
-21%
1123_O2Extensions_1500x1500_v1_1024x.jpg Quick View

BBK 07-11 Jeep Wrangler 3.8L O2 Sensor Wire Harness Extension (1pc) 24 for BBK Long Tubes 4050/40500 (1123)

$94.99
$74.99
BGRW_1123
BBK Performance Parts Emission Control Oxygen Sensors
When you install a set of BBK Performance long tube exhaust headers on your muscle car or truck the O2 sensor locations are relocated...
-22%
11221_O2Extensions_1500x1500_v1.jpg 11221_O2Extensions_1500x1500_v5.jpg Quick View

BBK 16-20 GM Camaro 6.2L SS Manual Trans O2 Sensor Wire Harness Extensions (Rear) (11221)

$89.99
$69.99
BGRW_11221
BBK Performance Parts Emission Control Oxygen Sensors
When you install a set of BBK Performance long tube exhaust headers on your muscle car or truck the O2 sensor locations are relocated...
-22%
1676_v1.jpg 1676_v2.jpg Quick View

BBK 86-10 Mustang 5.0 4.6 O2 Sensor Wire Harness Extensions (pair) (1676)

$89.99
$69.99
BGRW_1676
BBK Performance Parts Emission Control Oxygen Sensors
When you install a set of BBK Performance long tube exhaust headers on your muscle car or truck the O2 sensors are relocated on...
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16332_v1.jpg 16332_v2.jpg Quick View

BBK 2015 Mustang GT V6 6-Pin Front O2 Sensor Wire Harness Extensions 12 (pair) And Bolt Kit (16332)

$119.99
$89.99
BGRW_16332
BBK Performance Parts Emission Control Oxygen Sensors
When you install a set of BBK Performance long tube exhaust headers 1633 or 16330 on your 2015 -17 Mustang GT 5.0 the O2...
CTS Turbo O2 Sensor Plug (CTS-O2-PLUG) Quick View

CTS Turbo O2 Sensor Plug (CTS-O2-PLUG)

$14.99
CTS-O2-PLUG
CTS Turbo Emission Control Oxygen Sensors
Lost or damaged your oxygen sensor plug? Not to worry, these are replacement oxygen (O2) sensor plugs for all CTS Turbo downpipes, test pipes,...
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AutoMeter Oxygen Sensor Kit (2244) Quick View

AutoMeter Oxygen Sensor Kit (2244)

$169.40
$138.91
BDHZ_2244
AutoMeter Emission Control Oxygen Sensors
This narrowband exhaust oxygen sensor kit is intended for use only with AutoMeter narrowband air fuel ratio gauges in applications not already fitted with...
-17%
AutoMeter O2 Wideband Air/Fuel Sensor Kit for Ultimate DL Tachometer (9133) Quick View

AutoMeter O2 Wideband Air/Fuel Sensor Kit for Ultimate DL Tachometer (9133)

$201.17
$164.96
BDHZ_9133
AutoMeter Emission Control Oxygen Sensors
Wideband sensor kit for use with the Ultimate DL playback tachometers. 8ft harness.Features: 8ft motorsport grade harness Bosch LSU 4.2 wideband sensor  
K&N Oxygen Sensor Bushing (85-21688) K&N Oxygen Sensor Bushing (85-21688) Quick View
K&N

K&N Oxygen Sensor Bushing (85-21688)

$24.99
BBWQ_85-21688
Emission Control K&N Oxygen Sensors
K&N Engineering has been engineering and manufacturing premium, high-performance automotive and powersports products for over 40 years. K&N is the inventor and leading innovator...
K&N Oxygen Sensor Plug (85-21686) K&N Oxygen Sensor Plug (85-21686) Quick View
K&N

K&N Oxygen Sensor Plug (85-21686)

$34.99
BBWQ_85-21686
Emission Control K&N Oxygen Sensors
K&N Engineering has been engineering and manufacturing premium, high-performance automotive and powersports products for over 40 years. K&N is the inventor and leading innovator...
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Innovate Motorsports Replacement Ethanol Sensor Cable for MTX-D/ECB-1/ECF-1 (08-0257) Quick View

Innovate Motorsports Replacement Ethanol Sensor Cable for MTX-D/ECB-1/ECF-1 (08-0257)

$22.67
$19.27
CLQR_08-0257
Emission Control Innovate Motorsports Oxygen Sensors
Replacement Ethanol sensor cable for MTX-D Ethanol Content, ECB-1 Boost Pressure, Fuel Temperature and Ethanol Content, and ECF-1 Fuel Pressure, Fuel Temperature and Ethanol...
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Innovate Motorsports O2 Sensor Cable (3890) Quick View

Innovate Motorsports O2 Sensor Cable (3890)

$33.70
$26.96
CLQR_3890
Emission Control Innovate Motorsports Oxygen Sensors
O2 Sensor Cable; For Bosch LSU 4.9 O2 Sensor; 3 ft. Long by Innovate Motorsports. 3 ft sensor cable for use with Bosch LSU...
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Innovate Motorsports O2 Sensor Cable (3889) Quick View

Innovate Motorsports O2 Sensor Cable (3889)

$93.23
$79.25
CLQR_3889
Emission Control Innovate Motorsports Oxygen Sensors
O2 Sensor Cable; For Bosch LSU 4.9 O2 Sensor; 18 ft. Long by Innovate Motorsports. 18 ft sensor cable for for use with Bosch...
-14%
Innovate Motorsports O2 Sensor Cable (3887) Quick View

Innovate Motorsports O2 Sensor Cable (3887)

$57.28
$48.69
CLQR_3887
Emission Control Innovate Motorsports Oxygen Sensors
O2 Sensor Cable; For Bosch LSU 4.9 O2 Sensor; 8 ft. Long by Innovate Motorsports. 8 ft sensor cable for use with Bosch LSU...
-14%
Innovate Motorsports O2 Sensor Cable (3843) Quick View

Innovate Motorsports O2 Sensor Cable (3843)

$33.70
$28.65
CLQR_3843
Emission Control Innovate Motorsports Oxygen Sensors
O2 Sensor Cable; For Bosch LSU 4.2 O2 Sensor; 3 ft. Long by Innovate Motorsports. 3 ft sensor cable for use with Bosch LSU...
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Innovate Motorsports O2 Sensor Cable (3810) Quick View

Innovate Motorsports O2 Sensor Cable (3810)

$57.28
$48.69
CLQR_3810
Emission Control Innovate Motorsports Oxygen Sensors
O2 Sensor Cable; For Bosch LSU 4.2 O2 Sensor; 8 ft. Long by Innovate Motorsports. 8 ft sensor cable for use with Bosch LSU...
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Innovate Motorsports Extended Bung and Plug Kit (3842) Quick View

Innovate Motorsports Extended Bung and Plug Kit (3842)

$39.31
$33.41
CLQR_3842
Emission Control Innovate Motorsports Oxygen Sensors
Extended Bung and Plug Kit; 1 in. Tall; Titanium by Innovate Motorsports. For the last couple of years you may have noticed that all...
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Innovate Motorsports Extended Bung (3839) Quick View

Innovate Motorsports Extended Bung (3839)

$8.99
$7.64
CLQR_3839
Emission Control Innovate Motorsports Oxygen Sensors
Extended Bung; 1 in.; Mild Steel by Innovate Motorsports. For the last couple of years you may have noticed that all Innovate Motorsports wideband...
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Innovate Motorsports Extended Bung and Plug Kit (3838) Quick View

Innovate Motorsports Extended Bung and Plug Kit (3838)

$11.23
$9.55
CLQR_3838
Emission Control Innovate Motorsports Oxygen Sensors
Extended Bung and Plug Kit; 1 in. Tall; Stainless Steel by Innovate Motorsports. For the last couple of years you may have noticed that...
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One of the most important sensors in your vehicle is an oxygen sensor. By measuring concentration of oxygen in the system, it helps the ECU fine tune the air-fuel mixture and lets your vehicle perform to its full potential. However, the oxygen sensor is most often overlooked. We don't even know that it is damaged until the car fails the emissions test. And JM Auto Racing offers you replacement oxygen sensors that are identical to the OE parts but cost much less.

The first oxygen sensor was developed by Robert Bosch in 1960s. Being standard equipment on all passenger cars and light trucks since 1981, today the O2 sensor is the most important device for reducing emissions. The amount of air the engine can suck in depends on factors such as air temperature, engine load, barometric pressure, etc, which means the on-board computer must constantly adjust the amount of fuel to ensure efficient combustion.

A modern vehicle is equipped with at least four sensors. You are sure to find two sensors that monitor efficiency of the catalytic converter, and those are located on each bank of the catcon. They say that these are rather catalytic converter monitors, and only the units that are screwed into the exhaust manifold downpipe (sometimes, between the manifold and catalytic converter) can be considered O2 sensors. The device produces a voltage signal that is proportional to the amount of oxygen in the exhaust stream. The question is how it operates. Well, it all boils down to the construction.

The technology that stands behind the oxygen sensor is quite tricky. In a word, the device operates thanks to two porous platinum electrodes with a ceramic electrolyte between them. Depending on the difference between the amount of oxygen in the exhaust gas and atmosphere, the sensor produces a voltage output - the larger the difference, the higher the output - that is transferred to the ECU, which calculates the air-fuel ratio and adjust the mix. There are surely various O2 sensor design types, such as thimble, wideband, and planar, that were developed to meet requirements of the car manufacturers. And there are also heated and unheated versions. Still, the basic operation principle remains the same in all of them.

A heated sensor normally lasts for up to 100,000 miles, while the unheated one has the lifetime of about 40,000 miles. However great those numbers sound, there are certain factors that can damage the unit. Leaded fuel and fuel contaminated with silicates or silicons, as well as leaks of oil are only a few things that cause loss of response. What you do need to know are the symptoms of a damaged component. If you experience a sudden decrease in fuel mileage or overall poor performance, if the check engine light is flashing, if the engine responses way too slowly, go to a trusted mechanic because chances are all that is caused by a dead sensor.

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