Genuine Mazda Oxygen Sensor

Oxygen O2 Sensor

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199 Oxygen Sensors found

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Mazda Oxygen Sensor
Part Number: AJF5-18-861A
$47.85 MSRP: $63.81
You Save: $15.96 (26%)
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Product Specifications
- Other Name: Sensor, Oxygen; Front Oxygen Sensor
- Replaces: AJF5-18-861
Fits the following Mazda Models:
- 6 | 2006-2008 | i, Mazdaspeed, S | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
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Mazda Oxygen Sensor
Part Number: 1F20-18-860A
$63.89 MSRP: $85.20
You Save: $21.31 (26%)
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Product Specifications
- Other Name: Sensor, Oxygen
Fits the following Mazda Models:
- B2300 | 2002-2009 | Base, SE | 4 Cyl 2.3 L GAS
- B3000 | 2002-2007 | Base, DS, SE | 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS
- B4000 | 2006-2009 | Base, SE | 6 Cyl 4.0 L GAS
- Tribute | 2008-2011 | S | 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS
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Mazda Oxygen Sensor
Part Number: AJ58-18-861B
$89.19 MSRP: $118.94
You Save: $29.75 (26%)
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Product Specifications
- Other Name: Sensor, Oxygen; Rear Oxygen Sensor
- Replaces: AJ58-18-861A
Fits the following Mazda Models:
- 6 | 2003-2008 | i, Mazdaspeed, S | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
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Mazda Oxygen Sensor
Part Number: CA07-18-8G1A
$89.88 MSRP: $119.86
You Save: $29.98 (26%)
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Product Specifications
- Other Name: Sensor, Air & Fuel Ratio; Front Oxygen Sensor, Oxygen Sensor
- Position: Rear
- Replaces: CA07-18-8G1
Fits the following Mazda Models:
- 6 | 2009-2010 | S | 6 Cyl 3.7 L GAS
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Mazda Oxygen Sensor
Part Number: AJ60-18-861B
$97.26 MSRP: $129.70
You Save: $32.44 (26%)
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Product Specifications
- Other Name: Sensor, Oxygen; Rear Oxygen Sensor
- Replaces: AJ60-18-861A
Fits the following Mazda Models:
- 6 | 2003-2005 | i, S | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
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Mazda Oxygen Sensor
Part Number: CA41-18-861
$104.78 MSRP: $139.73
You Save: $34.95 (26%)
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Product Specifications
- Other Name: Sensor, Oxygen
- Replaces: CA39-18-861
Fits the following Mazda Models:
- 6 | 2011-2013 | S | 6 Cyl 3.7 L GAS
- CX-9 | 2011-2015 | Grand Touring, Sport, Touring | 6 Cyl 3.7 L GAS
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Mazda Oxygen Sensor
Part Number: L334-18-861B
$105.34 MSRP: $140.48
You Save: $35.14 (26%)
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Product Specifications
- Other Name: Sensor, Oxygen; Rear Oxygen Sensor
- Replaces: L334-18-861A
Fits the following Mazda Models:
- 6 | 2003-2005 | i, S | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
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Mazda Oxygen Sensor
Part Number: L519-18-861C
$111.04 MSRP: $148.08
You Save: $37.04 (26%)
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Product Specifications
- Other Name: Sensor, Oxygen; Lower Oxygen Sensor
- Replaces: L519-18-861A, L519-18-861, L519-18-861B
Fits the following Mazda Models:
- 6 | 2009-2013 | i, S | 4 Cyl 2.5 L GAS, 6 Cyl 3.7 L GAS
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Mazda Oxygen Sensor
Part Number: FS1G-18-861A
$113.43 MSRP: $151.26
You Save: $37.83 (26%)
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Product Specifications
- Other Name: Sensor, Oxygen
Fits the following Mazda Models:
- 626 | 2000-2002 | ES, LX | 4 Cyl 2.0 L GAS
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Mazda Oxygen Sensor
Part Number: L518-18-8G1A
$118.16 MSRP: $157.59
You Save: $39.43 (26%)
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Product Specifications
- Other Name: Sensor, Air & Fuel Ration; Oxygen Sensor
- Position: Upper
- Replaces: L518-18-8G1
Fits the following Mazda Models:
- 6 | 2009-2013 | i, S | 4 Cyl 2.5 L GAS, 6 Cyl 3.7 L GAS
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Mazda Oxygen Sensor
Part Number: PEDE-18-86Z
$120.96 MSRP: $161.31
You Save: $40.35 (26%)
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Product Specifications
- Other Name: Sensor, Oxygen; Oxygen Sensor
- Position: Lower
Fits the following Mazda Models:
- 3 | 2014-2018 | i Grand Touring, I Sport, i SV, I Touring, Sport, Touring | 4 Cyl 2.0 L GAS
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Mazda Oxygen Sensor
Part Number: AJ59-18-861C
$123.11 MSRP: $164.18
You Save: $41.07 (26%)
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Product Specifications
- Other Name: Sensor, Oxygen; Front Oxygen Sensor
- Replaces: AJ59-18-861B, AJ59-18-861A
Fits the following Mazda Models:
- 6 | 2003-2005 | i, S | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
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Mazda Oxygen Sensor
Part Number: GY05-18-861A-9U
$123.13 MSRP: $164.20
You Save: $41.07 (26%)
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Product Specifications
- Other Name: Sensor, Oxygen
- Position: Left
Fits the following Mazda Models:
- MPV | 2000-2001 | DX, ES, LX | 6 Cyl 2.5 L GAS
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Mazda Oxygen Sensor
Part Number: CA09-18-861
$123.28 MSRP: $164.39
You Save: $41.11 (26%)
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Product Specifications
- Other Name: Sensor, Oxygen; Front Oxygen Sensor, Oxygen Sensor
- Position: Rear
Fits the following Mazda Models:
- 6 | 2009-2010 | S | 6 Cyl 3.7 L GAS
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Mazda Oxygen Sensor
Part Number: FS1K-18-861B
$129.54 MSRP: $172.75
You Save: $43.21 (26%)
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Product Specifications
- Other Name: Sensor, Oxygen
Fits the following Mazda Models:
- 626 | 2000-2002 | ES, LX | 4 Cyl 2.0 L GAS
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Mazda Oxygen Sensor
Part Number: L394-18-861A
$137.88 MSRP: $183.87
You Save: $45.99 (26%)
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Product Specifications
- Other Name: Sensor, Oxygen; Rear Oxygen Sensor
- Replaces: L394-18-861
Fits the following Mazda Models:
- 6 | 2006-2008 | i, Mazdaspeed, S | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
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Mazda Oxygen Sensor
Part Number: FS1H-18-861A
$139.78 MSRP: $186.41
You Save: $46.63 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Oxygen
Fits the following Mazda Models:
- 626 | 2000-2002 | ES, LX | 4 Cyl 2.0 L GAS
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Mazda Oxygen Sensor
Part Number: GY06-18-861A-9U
$143.26 MSRP: $191.06
You Save: $47.80 (26%)
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Product Specifications
- Other Name: Sensor, Oxygen
- Position: Right
- Replaces: GY06-18-861, GY06-18-861A
Fits the following Mazda Models:
- MPV | 2000-2001 | DX, ES, LX | 6 Cyl 2.5 L GAS
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Mazda Oxygen Sensor
Part Number: GY04-18-861B-9U
$143.55 MSRP: $191.43
You Save: $47.88 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Oxygen
- Replaces: GY04-18-861B
Fits the following Mazda Models:
- MPV | 2000-2001 | DX, ES, LX | 6 Cyl 2.5 L GAS
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Mazda Oxygen Sensor
Part Number: LF66-18-861C-9U
$142.60 MSRP: $190.17
You Save: $47.57 (26%)
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Product Specifications
- Other Name: Sensor, Oxygen
- Replaces: LF66-18-861B-9U
Fits the following Mazda Models:
- 3 | 2004-2006 | i, S, SP23 | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS
- 5 | 2006-2007 | Grand Touring, Sport, Touring | 4 Cyl 2.3 L GAS

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1-20 of 199 Results

Mazda Oxygen Sensor

The role of the Mazda oxygen sensor in regulating fuel emissions is very important for better engine performance and fuel economy. It monitors exhaust gas and deposits developed by the engine, thus providing data about the air-fuel ratio. Whenever this ratio goes below or above normal values, the sensor relays information to the vehicle's engine control system for precise adjustment of the fuel mixture. Fluctuating idle speed and a sudden decrease in gas mileage are some telltale symptoms of a bad oxygen sensor. Heated sensors should be changed after 100,000 miles, while unheated sensors should be changed after 50,000 miles.

Whenever you need replacements, opt for genuine Mazda Oxygen Sensors. Because they meet the manufacturer's criteria, it guarantees that replacements fit perfectly. Thus, these make better choices for people who care about driving. Why should you shop at MazdaPartsNow.com? We sell genuine Mazda Oxygen Sensors. In our online catalog, there is a wide range of different parts. These are delivered directly from authorized Mazda dealers only so that customers can be sure of their security throughout any transaction while using our website. Furthermore, you can also quickly search for OEM parts you want because of our user-friendly site navigation. Choose us for a genuine Mazda Oxygen Sensor that keeps your car running like new.