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 Replacement Parts Catalog
OEM Replacement Parts Catalog
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How do I replace my oxygen sensor?
An oxygen sensor is straight forward to replace. Sometimes also known as the o2 sensor, you can have up to 3 or more oxygen sensors in your vehicle. Most modern cars and trucks have at least 2, with one located before the catalytic converter typically on the downpipe, or on the exhaust manifold sometimes also known as the header, and after the catalytic converter. To replace the o2 sensor behind your catalytic converter, simply unscrew the sensor from the exhaust pipe, and unplug it from the connector. Make sure not to strip the sensor, as it could be very sensitive if you use the wrong size wrench to remove it. You would follow the same steps to replace the one before the catalytic converter, but it is typically tougher to get to due to location.
Are the front and rear o2 sensors interchangeable?
Because each sensor is there for a different purpose, they are not interchangeable.
What does the oxygen sensor do? Why does my car not pass smog with a bad o2 sensor?
Many times, if an oxygen sensor goes bad, then your car will not pass smog, and have a very high emissions reading. The reason for this, is the oxygen sensor is responsible for reading how much oxygen to fuel there is in the exhaust, to determine if your car is running too rich, or too lean, and helps the ECU adjust properly. If the exhaust gas is determined to be too lean, your car would run too hot, and melt engine parts such as pistons and valves. If it's too rich, you are burning too much gas, so you could foul your spark plugs, and cause your car to have bad emissions. The rear o2 sensor, behind the catalytic converter, is simply responsible to ensure the catalytic converter is working, and could throw a check engine light if it is broken.
What kind of o2 sensors do you offer?
We have both OEM factory replacement o2 sensors, and also universal sensors that need to have the harness spliced for install. The installation on these is much tougher, but the cost is usually significantly less than a factory sensor. All factory sensors come with a plug and play harness, and install in minutes.
Where can I get more info on installing an o2 sensor?
We setup a car forum for you to be able to discuss repairs and installs such as o2 sensors.
Latest Mazda Oxygen Sensor Applications
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NTK Oxygen Sensor
- 89 Mazda 929 V6 3.0 SOHC 3.0SOHC Oxygen Sensor |
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Walker Products Inc. Oxygen Sensor
- 89 Mazda 929 V6 3.0 SOHC 3.0SOHC Oxygen Sensor Universal |
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Bosch Oxygen Sensor
- 89 Mazda 929 V6 3.0 SOHC 3.0SOHC Oxygen Sensor Universal The submersible Bosch patented* connection system has undergone rigorous quality testing to USCAR standards. Tests have proven that this watertight system protects against contaminaiton and withstands the effects of extreme temperatures and engine vibration. User friendly instructions, No special tools are required to install. Just strip wires & go! Specially designed heat resistant - Posi-Lock connectors can easily be taken apart and recon- nected in case of wiring mistake. |
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Walker Products Inc. Oxygen Sensor
07-08 Mazda CX-7 Touring FWD After Catalyst Oxygen Sensor |
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Denso Oxygen Sensor
- 94 Mazda B4000 2WD V6 Pickup 2 Per Vehicle Oxygen Sensor w/ 18.82 |
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NTK Oxygen Sensor
01 - Mazda Millenia 2.5 V6 2.5DOHC After Front Catalyst
Rear ( Firewall side ),
in exhaust pipe. Oxygen Sensor |
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Walker Products Inc. Oxygen Sensor
01 - Mazda Millenia 2.5 V6 2.5DOHC After Front Catalyst
Front ( Radiator side ),
in exhaust pipe. Oxygen Sensor On Exhaust Manifold |
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Bosch Oxygen Sensor
- 99 Mazda 626 2.0 Front
FEDERAL In Front Pipe - Except California Oxygen Sensor |
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Bosch Oxygen Sensor
96 - Mazda MPV 4WD V6 3.0SOHC Front Oxygen Sensor |
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Denso Oxygen Sensor
96 - Mazda MPV 4WD V6 3.0SOHC Rear Oxygen Sensor OE Type |
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Denso Oxygen Sensor
01-11 Mazda B2300 2WD Pickup Front Oxygen Sensor w/ 18.82 |
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Walker Products Inc. Oxygen Sensor
- 93 Mazda Protege SE, DX 1.8SOHC On exhaust manifold Oxygen Sensor |
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NTK Oxygen Sensor
- 05 Mazda 3 2.3L 4Dr Sedan MZR Before Catalyst May also be referred to as a Air Fuel Ratio Sensor. Oxygen Sensor |
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Walker Products Inc. Oxygen Sensor
- 05 Mazda 3 2.3L 4Dr Sedan MZR Before Catalyst May also be referred to as a Air Fuel Ratio Sensor. Oxygen Sensor May also be referred to as a Air Fuel Ratio Sensor. |
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Oxygen Sensor
07/90 - 95 Mazda MPV 2WD V6 3.0SOHC Oxygen Sensor Direct Fit |
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Denso Oxygen Sensor
96 - Mazda MPV 2WD V6 3.0SOHC Rear Oxygen Sensor OE Type |
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NTK Oxygen Sensor
93-95 Mazda RX-7 Turbo 13B Oxygen Sensor Gel formula provides liquid-reliability without drips, globs, mess or waste. All-purpose, medium strength threadlocker. Ideal for all nut and bolt applications 1/4 inch to 1 inch (6mm to 25mm). Eliminates need for stocking expensive lock nuts and lock washers. Locks and seals while preventing parts from loosening due to vibration. Protects threads from corrosion. Removable with hand tools for easy disassembly. Mil-Spec (S-46163A) Type II, Grade N. 10 Gram - Blue |
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NTK Oxygen Sensor
06-09 Mazda 5-Door Wagon 2.3 Before Catalyst May also be referred to as a Air Fuel Ratio Sensor. Oxygen Sensor |
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Walker Products Inc. Oxygen Sensor
06-09 Mazda 5-Door Wagon 2.3 Before Catalyst May also be referred to as a Air Fuel Ratio Sensor. Oxygen Sensor May also be referred to as a Air Fuel Ratio Sensor. |
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Bosch Oxygen Sensor
06-09 Mazda 5-Door Wagon 2.3 Before Catalyst May also be referred to as a Air Fuel Ratio Sensor. Oxygen Sensor May also be referred to as a Air Fuel Ratio Sensor. |
Some Mazda Oxygen Sensor Applications (View Full Catalog Above)
| Mazda 3 2.0L 4Dr Sedan |
Mazda 3 2.3L 4Dr Sedan |
Mazda 3 2.3L 5Dr Hatchback |
| Mazda 323 Hatchback |
Mazda 323 Sedan |
Mazda 5-Door Wagon |
| Mazda 626 |
Mazda 626 Turbo |
Mazda 626 V6 |
| Mazda 626 MX6 |
Mazda 626 MX6 V6 |
Mazda 6i Sedan 2.3L |
| Mazda 6s Sedan 3.0L V6 |
Mazda 929 V6 3.0 SOHC |
Mazda B2300 2WD Pickup |
| Mazda B2500 2WD Pickup |
Mazda B2600 2WD Pickup |
Mazda B4000 2WD V6 Pickup |
| Mazda B4000 4WD V6 Pickup |
Mazda CX-7 Touring FWD |
Mazda Miata |
| Mazda Millenia 2.3 V6 |
Mazda Millenia 2.5 V6 |
Mazda MPV 2.5 V6 |
| Mazda MPV 2WD |
Mazda MPV 2WD V6 |
Mazda MPV 3.0 V6 |
| Mazda MPV 4WD V6 |
Mazda MX3 16V DOHC |
Mazda MX3 V6 |
| Mazda Protege 5 |
Mazda Protege DX, LX |
Mazda Protege DX,ES,LX,MP3 |
| Mazda Protege ES |
Mazda Protege LX |
Mazda Protege SE, DX |
| Mazda Protege Speed Turbo |
Mazda RX7 |
Mazda RX7 Turbo |
| Mazda RX-7 Turbo |
Mazda RX8 Rotary |
Mazda Mazdaspeed 3 Turbo |
| Mazda Tribute 2WD V6 |
Mazda Tribute 4WD |
Mazda Tribute 4WD V6 |
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| 1.3 |
1.5DOHC |
1.6DOHC |
1.6SOHC |
1.8DOHC |
1.8SOHC |
12A |
13B |
| 2.0 |
2.0DOHC |
2.2 |
2.3 |
2.3DOHC |
2.5 |
2.5DOHC |
2.6 |
| 2.6SOHC |
3.0 |
3.0SOHC |
DOHC16V |
MZI |
MZR |
More Applications (View Full Catalog Above)
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