How to Service the Heated Oxygen Sensors on Lincoln MKX?

Start the service of Heated Oxygen Sensor (HO2S) by first securing the vehicle on a hoist using neutral gear position. The electrical connector of the HO2S must be disconnected. Penetrating and lock lubricant serves to minimize resistance when removing the sensor by applying it to its threads. The Exhaust Gas Oxygen Sensor Socket enables you to remove the HO2S while following torque calculations for the specified torque level. Work through the following steps for new HO2S installation while applying light anti-seize lubrication to its threads then tight the sensor to 48 Nm (35 lb-ft). Continue by performing the removal steps in opposite order to finish the installation.

OEM Lincoln MKX Oxygen Sensors

Oxygen O2 Sensor

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9 Oxygen Sensors found

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Lincoln MKX Oxygen Sensor, Rear Part Number: FL3Z-9G444-E
$39.62 MSRP: $62.91
You Save: $23.29 (38%)
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Product Specifications
- Other Name: Sensor - Exhaust Gas - Oxygen; Oxygen Sensor, Rear; Rear Oxygen Sensor; Lower Oxygen Sensor
- Position: Rear
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2016-2018 Lincoln MKX | Black Label, Premiere, Reserve, Select | 6 Cyl 2.7 L GAS
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Lincoln MKX Oxygen Sensor, Front Passenger Side Part Number: FR3Z-9F472-A
$101.88 MSRP: $167.64
You Save: $65.76 (40%)
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Product Specifications
- Other Name: Sensor - Hego; Oxygen Sensor, Front, Front Right; Wideband Air/Fuel Sensor; Air/Fuel Sensor; Front Oxygen Sensor; Upper Oxygen Sensor
- Manufacturer Note: RH/LH
- Position: Front Passenger Side
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2016-2018 Lincoln MKX | Black Label, Premiere, Reserve, Select | 6 Cyl 2.7 L GAS
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Lincoln MKX Oxygen Sensor, Rear Part Number: FL3Z-9G444-A
$57.46 MSRP: $94.55
You Save: $37.09 (40%)
Ships in 1 Business Day
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Product Specifications
- Other Name: Sensor - Exhaust Gas - Oxygen; Oxygen Sensor, Rear; Rear Oxygen Sensor; Lower Oxygen Sensor
- Position: Rear
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2016-2018 Lincoln MKX | Black Label, Premiere, Reserve, Select | 6 Cyl 3.7 L GAS
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Lincoln MKX Oxygen Sensor, Front Part Number: FB5Z-9F472-A
$67.74 MSRP: $111.45
You Save: $43.71 (40%)
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Product Specifications
- Other Name: Sensor - Hego; Oxygen Sensor, Front, Front Left, Front Right; Wideband Air/Fuel Sensor; Air/Fuel Sensor; Front Oxygen Sensor; Upper Oxygen Sensor
- Manufacturer Note: Front Or Rear
- Position: Front
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2016-2018 Lincoln MKX | Black Label, Premiere, Reserve, Select | 6 Cyl 3.7 L GAS
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Lincoln MKX Oxygen Sensor, Front Part Number: BL3Z-9F472-A
$133.71 MSRP: $220.00
You Save: $86.29 (40%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor - Hego; Oxygen Sensor, Front, Front Right; Wideband Air/Fuel Sensor; Air/Fuel Sensor; Front Oxygen Sensor; Upper Oxygen Sensor
- Position: Front
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2012-2015 Lincoln MKX | Base | 6 Cyl 3.7 L GAS
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Lincoln MKX Oxygen Sensor, Rear Driver Side Part Number: BH6Z-9G444-A
$71.27 MSRP: $117.27
You Save: $46.00 (40%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor - Exhaust Gas - Oxygen; Oxygen Sensor, Rear, Rear Left; Rear Oxygen Sensor; Lower Oxygen Sensor
- Position: Rear Driver Side
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2011-2015 Lincoln MKX | Base | 6 Cyl 3.7 L GAS
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Lincoln MKX Oxygen Sensor, Front Part Number: 9E5Z-9F472-D
$107.52 MSRP: $176.91
You Save: $69.39 (40%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor - Hego; Oxygen Sensor, Front; Wideband Air/Fuel Sensor; Air/Fuel Sensor; Front Oxygen Sensor; Upper Oxygen Sensor
- Position: Front
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2011 Lincoln MKX | Base | 6 Cyl 3.7 L GAS
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Lincoln MKX Oxygen Sensor, Front Part Number: 7T4Z-9F472-A
$48.19 MSRP: $78.73
You Save: $30.54 (39%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor - Hego; Oxygen Sensor, Front; Front Oxygen Sensor; Upper Oxygen Sensor
- Position: Front
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2007-2010 Lincoln MKX | Base | 6 Cyl 3.5 L GAS
View related parts
Lincoln MKX Oxygen Sensor, Rear Driver Side Part Number: 5F9Z-9G444-AB
$66.85 MSRP: $110.00
You Save: $43.15 (40%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor - Exhaust Gas - Oxygen; Oxygen Sensor, Rear, Rear Left; Rear Oxygen Sensor; Lower Oxygen Sensor
- Position: Rear Driver Side
- Replaces: 5F9Z-9G444-AA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2007-2010 Lincoln MKX | Base | 6 Cyl 3.5 L GAS

Lincoln MKX Oxygen Sensors

OEM Oxygen Sensors boasts unmatched quality. Each part goes through full quality checks. They adhere to Lincoln's official factory standards. These steps remove flaws and inconsistencies. So you can get Oxygen Sensors with long life and a perfect fit. Come to our website and find genuine Lincoln MKX parts. We keep a wide inventory of OEM MKX parts at the highly affordable prices. It's easy to search, compare, and pick what you need. You'll love the clear info and simple checkout. We offer top-rated customer service, and we reply fast. We also ship promptly to ensure your order arrives on time.

The Oxygen Sensors in Lincoln MKX vehicles helps in distinguishing the composition of the air/fuel mixture in the engine exhaust to rectify the quantitative standards of performance and emission. This makes it possible for the sensor to give a signal of unburned oxygen and hence send feedback to the engine control computer in relation to the fuel injector pulse width to meet the required air fuel ratio. MKX models mostly have LED lighting with two oxygen sensors; one is pre-cat while the other is post-cat. High temperature sensors used in modern cars are damaged easily due to contamination, resulting to increased emission and low fuel consumption. In some newer vehicles, the use of an air/fuel ratio sensor is made so as to measure across a wider better and more accurate range of the air/fuel ratio.

Lincoln MKX Oxygen Sensors Parts and Q&A

Oxygen Sensor, Rear Driver Side
5F9Z-9G444-AB
Q: How to Service the Heated Oxygen Sensors on Lincoln MKX?
A:
Start the service of Heated Oxygen Sensor (HO2S) by first securing the vehicle on a hoist using neutral gear position. The electrical connector of the HO2S must be disconnected. Penetrating and lock lubricant serves to minimize resistance when removing the sensor by applying it to its threads. The Exhaust Gas Oxygen Sensor Socket enables you to remove the HO2S while following torque calculations for the specified torque level. Work through the following steps for new HO2S installation while applying light anti-seize lubrication to its threads then tight the sensor to 48 Nm (35 lb-ft). Continue by performing the removal steps in opposite order to finish the installation.