How to Service the Heated Oxygen Sensors on Ford Escort?

The service of Heated Oxygen Sensor (HO2S) starts with disconnecting the battery ground cable followed by disconnecting the HO2S electrical connector. Service the HO2S by first extracting it through the following steps while leaving out the exhaust manifold heat shield due to the need for clarity. The reinstallation process should be identical to the service order.

How to Service and Repair Oxygen Sensors on Ford Focus?

The Heated Oxygen Sensor (HO2S) should be serviced and repaired by first hoisting the vehicle at neutral position. Disconnect the battery ground cable. Service vehicles with secondary air injection by removing the evaporative emissions (EVAP) canister purge valve heat shield after disconnecting the electrical connector and detaching the wiring retainer. You should reinstall the heat shield following its installation. The exhaust manifold heat shield needs its four retaining bolts thoroughly removed while you place the shield aside for reinstallation with a torque of 11 Nm (8 lb-ft). The sensor removal requires penetrating and lock lubricant for lubrication purposes before using a 22-mm crowfoot wrench to extract it while achieving a torque of 48 Nm (35 lb-ft). Vehicles without secondary air injection require users to detach the wiring retainer while disconnecting the electrical connector followed by unsnapping the electrical connector heat shield. Apply lubricating oil to the HO2S and use the 22-mm crowfoot wrench to uninstall it by tightening the sensor to 48 Nm (35 lb-ft) during installation. The electrical connector locking tab needs to be engaged along with proper retention of sensor wiring through all retainers so that the wire remains away from hot surfaces and out of reach of sharp edges. Zinc anti-seize lubrication should be applied to sensor threads before reinstalling. The correct reverse order needs to be followed for full completion of the operation.

OEM Ford Oxygen Sensors

Oxygen O2 Sensor

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247 Oxygen Sensors found

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Ford Oxygen Sensor, Front Driver Side Part Number: YL8Z-9F472-AA
$60.11 MSRP: $98.91
You Save: $38.80 (40%)
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Product Specifications
- Other Name: Sensor - Hego; Oxygen Sensor, Front, Front Left
- Position: Front Driver Side
Fits the following Ford Models:
- Escape | 2001-2006 | Limited, XLS, XLT, XLT No Boundaries, XLT Sport | 4 Cyl 2.0 L GAS, 6 Cyl 3.0 L GAS
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Ford Oxygen Sensor, Front Passenger Side Part Number: YL8Z-9F472-BA
$51.65 MSRP: $86.55
You Save: $34.90 (41%)
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Product Specifications
- Other Name: Sensor - Hego; Oxygen Sensor, Front Right
- Position: Front Passenger Side
Fits the following Ford Models:
- Escape | 2001-2006 | Limited, XLS, XLT, XLT No Boundaries, XLT Sport | 6 Cyl 3.0 L GAS
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Ford Oxygen Sensor, Front Upper Part Number: EJ5Z-9F472-B
$65.64 MSRP: $108.00
You Save: $42.36 (40%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor - Hego; Oxygen Sensor, Front; Wideband Air/Fuel Sensor; Upper Oxygen Sensor
- Position: Front Upper
Fits the following Ford Models:
- Fusion | 2014-2016 | S, SE, Titanium | 4 Cyl 1.5 L GAS, 4 Cyl 1.6 L GAS, 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
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Ford Oxygen Sensor, Rear Part Number: FL3Z-9G444-B
$53.26 MSRP: $87.64
You Save: $34.38 (40%)
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Product Specifications
- Other Name: Sensor - Exhaust Gas - Oxygen; Oxygen Sensor, Rear; Rear Oxygen Sensor
- Manufacturer Note: RH/LH
- Position: Rear
Fits the following Ford Models:
- Mustang | 2015-2020 | Shelby GT350, Shelby GT350R, V6 | 6 Cyl 3.7 L GAS, 8 Cyl 5.2 L GAS
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Ford Oxygen Sensor, Rear Part Number: BE5Z-9G444-C
$68.51 MSRP: $112.73
You Save: $44.22 (40%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor - Exhaust Gas - Oxygen; Oxygen Sensor, Rear; Lower Oxygen Sensor
- Position: Rear
Fits the following Ford Models:
- Fusion | 2011-2012 | S, SE, SEL | 4 Cyl 2.5 L GAS
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Ford Oxygen Sensor, Front Driver Side Part Number: FR3Z-9F472-E
$55.80 MSRP: $91.82
You Save: $36.02 (40%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor - Hego; Oxygen Sensor, Front Left; Wideband Air/Fuel Sensor; Air/Fuel Sensor; Front Oxygen Sensor
- Position: Front Driver Side
Fits the following Ford Models:
- Mustang | 2015-2017 | GT, GT 50 Years Limited Edition, GT Premium | 8 Cyl 5.0 L GAS
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Ford Oxygen Sensor, Rear Part Number: BR3Z-9G444-A
$74.04 MSRP: $121.82
You Save: $47.78 (40%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor - Exhaust Gas - Oxygen; Oxygen Sensor, Rear; Rear Oxygen Sensor
- Position: Rear
Fits the following Ford Models:
- Mustang | 2011-2014 | Base, Boss 302, GT, Shelby GT500 | 6 Cyl 3.7 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.4 L GAS, 8 Cyl 5.8 L GAS
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Ford Oxygen Sensor, Rear Part Number: FL3Z-9G444-D
$46.72 MSRP: $74.18
You Save: $27.46 (38%)
Ships in 1 Business Day
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Product Specifications
- Other Name: Sensor - Exhaust Gas - Oxygen; Oxygen Sensor, Rear; Lower Oxygen Sensor
- Position: Rear
Fits the following Ford Models:
- F-150 | 2015-2017 | King Ranch, Lariat, Limited, Platinum, Raptor, SSV, XL, XLT | 6 Cyl 2.7 L GAS, 6 Cyl 3.5 L FLEX, 6 Cyl 3.5 L GAS, 8 Cyl 5.0 L FLEX
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Ford Oxygen Sensor, Front Passenger Side Part Number: JR3Z-9F472-B
$97.48 MSRP: $160.40
You Save: $62.92 (40%)
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Product Specifications
- Other Name: Sensor - Hego; Oxygen Sensor, Front Right; Front Oxygen Sensor
- Position: Front Passenger Side
Fits the following Ford Models:
- Mustang | 2018-2023 | Bullitt, GT, GT Premium, Mach 1 | 8 Cyl 5.0 L GAS
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Ford Oxygen Sensor, Rear Lower Part Number: J1DZ-9G444-A
$69.28 MSRP: $114.00
You Save: $44.72 (40%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Sensor - Exhaust Gas - Oxygen; Oxygen Sensor, Rear; Lower Oxygen Sensor
- Position: Rear Lower
Fits the following Ford Models:
- Escape | 2018-2019 | S | 4 Cyl 2.5 L GAS
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Ford Oxygen Sensor, Rear Part Number: FL3Z-9G444-C
$77.79 MSRP: $128.00
You Save: $50.21 (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
Fits the following Ford Models:
- F-150 | 2015-2016 | King Ranch, Lariat, Limited, Platinum, SSV, XL, XLT | 6 Cyl 3.5 L GAS
- Mustang | 2015-2017 | EcoBoost, EcoBoost Premium | 4 Cyl 2.3 L GAS
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Ford Oxygen Sensor, Rear Part Number: BL8Z-9G444-A
$76.91 MSRP: $126.55
You Save: $49.64 (40%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor - Exhaust Gas - Oxygen; Oxygen Sensor, Rear; Lower Oxygen Sensor
- Position: Rear
Fits the following Ford Models:
- Escape | 2011-2012 | Limited, XLS, XLT | 4 Cyl 2.5 L GAS
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Ford Oxygen Sensor, Front Driver Side Part Number: JL3Z-9F472-B
$119.34 MSRP: $196.36
You Save: $77.02 (40%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor - Hego; Oxygen Sensor, Front Left; Upper Oxygen Sensor
- Position: Front Driver Side
Fits the following Ford Models:
- F-150 | 2018-2020 | King Ranch, Lariat, Platinum, SSV, XL, XLT | 6 Cyl 3.3 L FLEX, 8 Cyl 5.0 L FLEX
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Ford Oxygen Sensor, Rear Part Number: LX6Z-9G444-M
$90.43 MSRP: $143.60
You Save: $53.17 (38%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor - Exhaust Gas - Oxygen; Oxygen Sensor, Rear; Lower Oxygen Sensor
- Position: Rear
- Replaces: LX6Z-9G444-F
Fits the following Ford Models:
- Escape | 2020-2022 | S, SE, SEL | 3 Cyl 1.5 L GAS
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Ford Oxygen Sensor Part Number: PZ1Z-9F472-E
$211.34 MSRP: $350.91
You Save: $139.57 (40%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor - Hego; Upper Oxygen Sensor
Fits the following Ford Models:
- Escape | 2023 | Platinum Hybrid, Plug-In Hybrid, ST-Line Elite Hybrid, ST-Line Hybrid, ST-Line Select Hybrid | 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.5 L PLUG-IN HYBRID EV-GAS (PHEV)
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Ford Oxygen Sensor Part Number: PZ1Z-9G444-E
$18.32 MSRP: $29.09
You Save: $10.77 (38%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor - Exhaust Gas - Oxygen; Lower Oxygen Sensor
Fits the following Ford Models:
- Escape | 2023 | Active, Base, ST-Line | 3 Cyl 1.5 L GAS
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Ford Oxygen Sensor, Front Passenger Side Part Number: LK4Z-9F472-D
$158.70 MSRP: $252.00
You Save: $93.30 (38%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor - Hego; Oxygen Sensor, Front Right; Front Oxygen Sensor
- Position: Front Passenger Side
Fits the following Ford Models:
- Transit-150 | 2020-2023 | Base, PTV, XL, XLT | 6 Cyl 3.5 L GAS
- Transit-250 | 2020-2023 | Base, PTV | 6 Cyl 3.5 L GAS
- Transit-350 | 2020-2023 | Base, PTV, XL, XLT | 6 Cyl 3.5 L GAS
- Transit-350 HD | 2020-2023 | Base, PTV, XL, XLT | 6 Cyl 3.5 L GAS
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Ford Oxygen Sensor Part Number: PZ1Z-9F472-G
$117.94 MSRP: $187.27
You Save: $69.33 (38%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor - Hego
- Replaces: AM-QDY-238, PZ1Z-9F472-A
Fits the following Ford Models:
- Escape | 2023 | Platinum, ST-Line Elite, ST-Line Select | 4 Cyl 2.0 L GAS
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Ford Oxygen Sensor Part Number: PZ1Z-9G444-F
$125.97 MSRP: $207.27
You Save: $81.30 (40%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor - Exhaust Gas - Oxygen; Lower Oxygen Sensor
Fits the following Ford Models:
- Escape | 2023 | Platinum Hybrid, Plug-In Hybrid, ST-Line Elite Hybrid, ST-Line Hybrid, ST-Line Select Hybrid | 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.5 L PLUG-IN HYBRID EV-GAS (PHEV)
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Ford Rear Oxygen Sensor Part Number: XR3Z-9G444-CA
Product Specifications
- Other Name: Sensor Assembly; Oxygen Sensor, Rear Right; Oxygen Sensor
- Position: Rear
Fits the following Ford Models:
- Mustang | 1999-2000 | GT, SVT Cobra | 8 Cyl 4.6 L GAS

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Ford Oxygen Sensors

If you own Ford and want to keep it in top shape, choosing OEM Oxygen Sensors is a smart move. They are precisely engineered and follow strict factory standards. They are made in advanced facilities that use cutting edge technology. Each part goes through thorough testing to confirm strength and safety, so you can trust it. FordPartsDeal.com gives you genuine Ford Oxygen Sensors at some of the affordable online prices without cutting quality. Every OEM Ford part includes the manufacturer's warranty, easy returns, and super-fast delivery. So why wait? Shop now and get your vehicle back to peak condition.

Ford Oxygen Sensors continuously indicate the amount of exhaust oxygen to the engine to ensure that it remains clean and efficient. Ford started in 1903 and re-invented production by a moving line of assembly that reduced the time to build. Ford supports EcoBoost mills which pull hard but economy on long commutes. Ford equips SYNC voice control to make teenagers change the track or get directions without looking down. Ford Co-Pilot360 and lane-keeping assistance help ease traffic congestion and reduce driver workload. The firm also implements electric pickups that drag silently and dump carbon-free tailpipes. Drivers see unambiguous technology working on the first attempt and avoid buzzwords. Several decades of experimentation combine with new concepts to make all the rides sincere and affordable. Oxygen Sensors are mounted in the exhaust gas, smelling fumes 1,000 times a second, and producing voltage hints farther up the line. This group of upstream Oxygen Sensors compares the remaining oxygen with the outside air, alerts the computer when the mixture becomes rich or lean, and pulses an injector to spray fuel that neutralizes smog and protects the catalyst. Oxygen Sensors are resistant to high temperatures, water, and sooty grime, thus the readings become weaker and throttle response decreases. New Oxygen Sensors rejuvenate crisp information that maintains power level and fuel costs minimal.

Ford Oxygen Sensors Parts and Q&A

Oxygen Sensor, Rear Driver Side
GU2Z-9G444-A
Q: How to Service the Heated Oxygen Sensors on Ford Escort?
A:
The service of Heated Oxygen Sensor (HO2S) starts with disconnecting the battery ground cable followed by disconnecting the HO2S electrical connector. Service the HO2S by first extracting it through the following steps while leaving out the exhaust manifold heat shield due to the need for clarity. The reinstallation process should be identical to the service order.
Oxygen Sensor, Front
5S4Z-9F472-AA
Q: How to Service and Repair Oxygen Sensors on Ford Focus?
A:
The Heated Oxygen Sensor (HO2S) should be serviced and repaired by first hoisting the vehicle at neutral position. Disconnect the battery ground cable. Service vehicles with secondary air injection by removing the evaporative emissions (EVAP) canister purge valve heat shield after disconnecting the electrical connector and detaching the wiring retainer. You should reinstall the heat shield following its installation. The exhaust manifold heat shield needs its four retaining bolts thoroughly removed while you place the shield aside for reinstallation with a torque of 11 Nm (8 lb-ft). The sensor removal requires penetrating and lock lubricant for lubrication purposes before using a 22-mm crowfoot wrench to extract it while achieving a torque of 48 Nm (35 lb-ft). Vehicles without secondary air injection require users to detach the wiring retainer while disconnecting the electrical connector followed by unsnapping the electrical connector heat shield. Apply lubricating oil to the HO2S and use the 22-mm crowfoot wrench to uninstall it by tightening the sensor to 48 Nm (35 lb-ft) during installation. The electrical connector locking tab needs to be engaged along with proper retention of sensor wiring through all retainers so that the wire remains away from hot surfaces and out of reach of sharp edges. Zinc anti-seize lubrication should be applied to sensor threads before reinstalling. The correct reverse order needs to be followed for full completion of the operation.