Genuine Mazda CX-9 Oxygen Sensor

Oxygen O2 Sensor

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7 Oxygen Sensors found

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Mazda CX-9 Oxygen Sensor Part Number: CA41-18-861
$113.08 MSRP: $150.80
You Save: $37.72 (26%)
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Product Specifications
- Other Name: Sensor, Oxygen
- Replaces: CA39-18-861
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2011-2015 Mazda CX-9 | Grand Touring, Sport, Touring | 6 Cyl 3.7 L GAS
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Mazda CX-9 Oxygen Sensor Part Number: CY01-18-861
$207.24 MSRP: $276.37
You Save: $69.13 (26%)
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Product Specifications
- Other Name: Sensor, Oxygen; Oxygen Sensor
- Position: Upper
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2007-2010 Mazda CX-9 | Grand Touring, Sport, Touring | 6 Cyl 3.5 L GAS, 6 Cyl 3.7 L GAS
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Mazda CX-9 Oxygen Sensor Part Number: CA38-18-8G1
$217.83 MSRP: $290.49
You Save: $72.66 (26%)
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Product Specifications
- Other Name: Sensor, Air & Fuel Ratio
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2011-2015 Mazda CX-9 | Grand Touring, Sport, Touring | 6 Cyl 3.7 L GAS
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Mazda CX-9 Oxygen Sensor Part Number: PE02-18-86ZA
$222.25 MSRP: $296.39
You Save: $74.14 (26%)
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Product Specifications
- Other Name: Sensor, Oxygen; Oxygen Sensor, Rear Oxygen Sensor
- Position: Lower
- Replaces: PE02-18-86Z
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2019-2023 Mazda CX-9 | Carbon Edition, Grand Touring, Signature, Sport, Touring, Touring Plus | 4 Cyl 2.5 L GAS
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Mazda CX-9 Oxygen Sensor Part Number: PY8V-18-8G1
$261.28 MSRP: $348.43
You Save: $87.15 (26%)
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Product Specifications
- Other Name: Sensor, Air&Fuel Ratio; Front Oxygen Sensor, Oxygen Sensor
- Position: Upper
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2016-2023 Mazda CX-9 | Carbon Edition, Grand Touring, Signature, Sport, Touring, Touring Plus | 4 Cyl 2.5 L GAS
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Mazda CX-9 Oxygen Sensor Part Number: PY8W-18-86Z
$264.74 MSRP: $353.05
You Save: $88.31 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Oxygen; Oxygen Sensor, Rear Oxygen Sensor
- Position: Lower
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2016-2018 Mazda CX-9 | Grand Touring, Signature, Sport, Touring | 4 Cyl 2.5 L GAS
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Mazda CX-9 Oxygen Sensor Part Number: CY03-18-861B-9U
Product Specifications
- Other Name: Sensor, Oxygen; Oxygen Sensor
- Position: Lower
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2007-2011 Mazda CX-9 | Grand Touring, Sport, Touring | 6 Cyl 3.5 L GAS, 6 Cyl 3.7 L GAS

Mazda CX-9 Oxygen Sensor

The Mazda CX-9 Oxygen Sensor is an important exhaust-attached part that allows this SUV to balance high horsepower and low emissions as it continuously informs the engine computer of the amount of oxygen leaving the tailpipe. The unit is made to heat itself to approximately 600 degrees Fahrenheit within seconds around a zirconia ceramic core that has a steel shell and fresh-air ports, thus demonstrating Mazda durability, yet keeping the fuel mix balanced and the catalytic converter scrubbing the pollutants out of the first mile in the first seconds you press the start button, which is controlled by feedback switches between open and closed loop a short time after you press the start button. Its narrow band or new wideband configuration drives a clean voltage signal to the computer to stretch or shorten injector pulses; upstream, a second unit monitors converter health and issues warnings of early trouble before performance degrades to meet the challenging factory performance standards. Since the first-generation 3.5-liter and 3.7-liter V6 and the subsequent Skyactiv 2.5 turbo use the same sensing logic, the component is directly compatible with all CX-9 vehicles manufactured since 2007 up to the current time and thus is an easy replacement in situations where age or environmental pollution slows down the response. This Oxygen Sensor system fits in without additional tuning. Drivers like the fact that a new Oxygen Sensor makes throttle responsive again, smooths idle, and possibly makes miles per gallon that had become obsolete. The component also protects safety systems, which rely on clean combustion by inhibiting carbon deposition, which may foul spark or trigger knock during load. Its rough platinum-plated electrodes can withstand heat changes and bumps and shocks that are common in a family hauler; a reputation that helps Mazda take the lead in reliability surveys. Two units and simple wiring mean that maintenance remains economical, but the reward is high efficiency and longevity that make the CX-9 comfortable on highway merges and mountain ascents and maintain Mazda value.

Looking for Oxygen Sensor with proven quality? Choose OEM Oxygen Sensor. Mazda designs and builds them to strict factory specs. Every piece goes through rigorous quality checks. You'll get parts that fit right and work like new. Shop our huge inventory of OEM Mazda CX-9 parts. Enjoy the highly competitive prices online. Our site is your one-stop shop. Each genuine CX-9 part includes a manufacturer's warranty. Buy with confidence. Our return policy is simple and hassle-free. In a rush? Choose expedited delivery at checkout. You'll love the streamlined experience from search to checkout to receiving your order.