How to Service the Heated Oxygen Sensors on Ford Explorer?

Place the vehicle on a hoist and set neutral before beginning service of the heated oxygen sensor (HO2S). The RH HO2S requires removal of two bolts before setting the heat shield to the side. First disconnect the HO2S electrical connector then apply penetrating and lock lubricant on the connector when needed to aid removal. You must use the exhaust gas oxygen sensor socket to uninstall the oxygen sensor known as HO2S. Before installation you must apply nickel anti-seize lubricant lightly to the threads of the new HO2S before tightening it to 41 Nm (30 lb-ft) using the original socket. Reinstall the HO2S electrical connector afterward before placing the heat shield if needed and fastening it with its 2 bolts at 20 Nm (177 lb-in) torque.

OEM Ford Explorer Oxygen Sensors

Oxygen O2 Sensor

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31 Oxygen Sensors found

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Ford Explorer Oxygen Sensor, Rear Driver Side Part Number: GU2Z-9G444-A
$56.02 MSRP: $92.18
You Save: $36.16 (40%)
Ships in 1 Business Day
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Product Specifications
- Other Name: Sensor - Exhaust Gas - Oxygen; Oxygen Sensor, Front, Front Left, Front Right, Rear, Rear Left, Rear Right; Rear Oxygen Sensor; Front Oxygen Sensor; Upper Oxygen Sensor; Lower Oxygen Sensor; Sensor
- Position: Rear Driver Side
- Replaces: 1R3Z-9G444-BA, 1R3Z-9G444-AA, 5F9Z-9G444-BA, 5W6Z-9G444-BA, 5C5Z-9F472-AA, DY-1091, DY-1005, DY-1063, DY-1089, DY-649, DY-1086, DY-1104, F1TZ-9F472-A, F4DZ-9F472-A, F6DZ-9G444-AA, F88Z-9F472-AA, F78Z-9F472-BA, F75Z-9G444-BA, DY-1081, DY-1060, DY-800, DY-831, DY-832, F3UZ-9F472-A, F4DZ-9F472-B, F4ZZ-9F472-C, F4UZ-9F472-A, F78Z-9F472-AA, F7RZ-9G444-BA, DY-1040, XC2Z-9F472-BA, F1SZ-9F472-A, XR3Z-9G444-BB, F5WZ-9F472-BA, 5C5Z-9F472-BA, 6E5Z-9G444-AA, 5W6Z-9G444-AA, DY-1034, DY-1093, DY-1058, F1SZ-9F472-B, 6L7Z-9F472-BA, DY-761, F5AZ-9G444-B, F4SZ-9F472-A, F77Z-9F472-BA, F6DZ-9G444-B, DY-1039, F85Z-9G444-E, F5UZ-9F472-A, F75Z-9G444-AA, F88Z-9F472-AB, F4SZ-9F472-D, F8RZ-9G444-BB, F85Z-9G444-AA, F85Z-9G444-AB, F88Z-9F472-BA, DY-1053, XR3Z-9G444-JA, XC2Z-9F472-AA, DY-1038, DY-703, F6DZ-9G444-EA, F5MZ-9F472-AA, DY-1087, FOTZ-9F472-A, DY-1057, XR3Z-9G444-EA, XR3Z-9G444-HA, DY-661, DY-731
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1996-2010 Ford Explorer | Eddie Bauer, Limited, NBX, Postal, Sport, XL, XL Fleet, XLS, XLS Sport, XLT, XLT Sport | 6 Cyl 4.0 L FLEX, 6 Cyl 4.0 L GAS, 8 Cyl 4.6 L GAS, 8 Cyl 5.0 L GAS
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Ford Explorer Oxygen Sensor, Rear Part Number: BB5Z-9G444-A
$147.71 MSRP: $234.55
You Save: $86.84 (38%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Sensor - Exhaust Gas - Oxygen; Oxygen Sensor, Rear; Lower Oxygen Sensor
- Manufacturer Note: Rear
- Position: Rear
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2012-2015 Ford Explorer | Base, Limited, XLT | 4 Cyl 2.0 L GAS
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Ford Explorer Oxygen Sensor, Front Driver Side Part Number: XL3Z-9F472-BA
$38.47 MSRP: $61.09
You Save: $22.62 (38%)
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Product Specifications
- Other Name: Sensor - Hego; Oxygen Sensor, Front, Front Left; Front Oxygen Sensor
- Position: Front Driver Side
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1999-2001 Ford Explorer | Eddie Bauer, Limited, Postal, Sport, XL, XL Fleet, XLS, XLT | 6 Cyl 4.0 L GAS, 8 Cyl 5.0 L GAS
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Ford Explorer Oxygen Sensor, Front Passenger Side Part Number: XL3Z-9F472-AA
$69.62 MSRP: $114.55
You Save: $44.93 (40%)
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Product Specifications
- Other Name: Sensor - Hego; Oxygen Sensor, Front, Front Right; Rear Oxygen Sensor; Front Oxygen Sensor
- Position: Front Passenger Side
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2004-2010, 1999-2001 Ford Explorer | Eddie Bauer, Limited, NBX, Postal, Sport, XL, XL Fleet, XLS, XLT, XLT Sport | 6 Cyl 4.0 L GAS, 8 Cyl 4.6 L GAS, 8 Cyl 5.0 L GAS
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Ford Explorer Oxygen Sensor, Rear Part Number: F8TZ-9G444-CA
$99.96 MSRP: $167.82
You Save: $67.86 (41%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor Assembly; Oxygen Sensor, Rear; Rear Oxygen Sensor
- Position: Rear
- Replaces: F7TZ-9G444-CA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1996-2000 Ford Explorer | Eddie Bauer, Limited, Postal, Sport, XL, XL Fleet, XLS, XLT | 6 Cyl 4.0 L GAS
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Ford Explorer Oxygen Sensor, Rear Lower Passenger Side Part Number: BA5Z-9G444-A
$62.43 MSRP: $102.73
You Save: $40.30 (40%)
Ships in 1 Business Day
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Product Specifications
- Other Name: Sensor - Exhaust Gas - Oxygen; Oxygen Sensor, Rear Right; Rear Oxygen Sensor; Lower Oxygen Sensor
- Manufacturer Note: Rear
- Position: Rear Lower Passenger Side
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2013-2019 Ford Explorer | Platinum, Sport | 6 Cyl 3.5 L GAS
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Ford Explorer Oxygen Sensor, Passenger Side Part Number: L1MZ-9F472-B
$136.03 MSRP: $216.00
You Save: $79.97 (38%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Sensor - Hego; Upper Oxygen Sensor
- Position: Passenger Side
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2020-2023 Ford Explorer | King Ranch, Platinum, ST | 6 Cyl 3.0 L GAS
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Ford Explorer Oxygen Sensor, Front Driver Side Part Number: L1MZ-9F472-C
$127.21 MSRP: $202.00
You Save: $74.79 (38%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Sensor - Hego; Oxygen Sensor, Front Left; Upper Oxygen Sensor
- Position: Front Driver Side
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2020-2023 Ford Explorer | Base, Limited Hybrid, Platinum Hybrid | 6 Cyl 3.3 L FULL HYBRID EV-GAS (FHEV)
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Ford Explorer Oxygen Sensor, Front Driver Side Part Number: L1MZ-9F472-E
$100.13 MSRP: $159.00
You Save: $58.87 (38%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Sensor - Hego; Oxygen Sensor, Front; Upper Oxygen Sensor
- Position: Front Driver Side
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2020-2023 Ford Explorer | Base, Limited, ST-Line, Timberline, XLT | 4 Cyl 2.3 L GAS
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Ford Explorer Oxygen Sensor, Front Driver Side Part Number: L1MZ-9F472-A
$152.40 MSRP: $242.00
You Save: $89.60 (38%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor - Hego; Oxygen Sensor, Front Left; Upper Oxygen Sensor
- Position: Front Driver Side
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2020-2023 Ford Explorer | King Ranch, Platinum, ST | 6 Cyl 3.0 L GAS
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Ford Explorer Oxygen Sensor, Rear Part Number: FB5Z-9G444-C
$67.44 MSRP: $107.09
You Save: $39.65 (38%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor - Exhaust Gas - Oxygen; Oxygen Sensor, Rear; Rear Oxygen Sensor; Lower Oxygen Sensor
- Position: Rear
- Replaces: DY-1602, FB5Z-9G444-A, DY-1338, FB5Z-9G444-B
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2016-2019 Ford Explorer | Base, Limited, XLT | 4 Cyl 2.3 L GAS
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Ford Explorer Oxygen Sensor Part Number: F39Z-9F472-C
$66.13 MSRP: $91.48
You Save: $25.35 (28%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor - Hego
- Replaces: F2AZ-9F472-C
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1993-1994 Ford Explorer | Eddie Bauer, Limited, Sport, XL, XLT | 6 Cyl 4.0 L GAS
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Ford Explorer Oxygen Sensor Part Number: L1MZ-9G444-B
$69.50 MSRP: $110.36
You Save: $40.86 (38%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor - Exhaust Gas - Oxygen; Lower Oxygen Sensor
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2020-2023 Ford Explorer | King Ranch, Platinum, ST | 6 Cyl 3.0 L GAS
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Ford Explorer Oxygen Sensor, Front Passenger Side Part Number: L1MZ-9F472-D
$118.80 MSRP: $200.00
You Save: $81.20 (41%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor - Hego; Oxygen Sensor, Front Right; Upper Oxygen Sensor
- Position: Front Passenger Side
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2020-2023 Ford Explorer | Base, Limited Hybrid, Platinum Hybrid | 6 Cyl 3.3 L FULL HYBRID EV-GAS (FHEV)
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Ford Explorer Oxygen Sensor, Rear Part Number: L1MZ-9G444-A
$67.01 MSRP: $106.40
You Save: $39.39 (38%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor - Exhaust Gas - Oxygen; Oxygen Sensor, Rear; Lower Oxygen Sensor
- Position: Rear
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2020-2023 Ford Explorer | Base, Limited Hybrid, Platinum Hybrid | 6 Cyl 3.3 L FULL HYBRID EV-GAS (FHEV)
View related parts
Ford Explorer Oxygen Sensor, Rear Part Number: JD8Z-9G444-B
$151.14 MSRP: $240.00
You Save: $88.86 (38%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor - Exhaust Gas - Oxygen; Oxygen Sensor, Rear; Lower Oxygen Sensor
- Position: Rear
- Replaces: JD8Z-9G444-A, DY-1526
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2020-2023 Ford Explorer | Base, Limited, ST-Line, Timberline, XLT | 4 Cyl 2.3 L GAS
View related parts
Ford Explorer Oxygen Sensor Part Number: F39Z-9F472-AFFV
Product Specifications
- Other Name: Sensor - Hego
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1995 Ford Explorer | Eddie Bauer, Expedition, Limited, Sport, XL, XLT | 6 Cyl 4.0 L GAS
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Ford Explorer Oxygen Sensor, Rear Part Number: F85Z-9G444-DA
Product Specifications
- Other Name: Sensor Assembly; Oxygen Sensor, Rear
- Position: Rear
- Replaces: F75Z-9G444-DA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1996-2000 Ford Explorer | Eddie Bauer, Limited, Postal, Sport, XL, XL Fleet, XLS, XLT | 6 Cyl 4.0 L GAS
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Ford Explorer Oxygen Sensor Part Number: FO9Z9F472C
Product Specifications
- Other Name: Powertrain Control
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1991-1994 Ford Explorer | Eddie Bauer, Limited, Sport, XL, XLT | 6 Cyl 4.0 L GAS
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Ford Explorer Oxygen Sensor Part Number: F3UZ-9F472-C
Product Specifications
- Other Name: Sensor Assembly
- Replaced by: F4UZ-9F472-C
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1991-1994 Ford Explorer | Eddie Bauer, Limited, Sport, XL, XLT | 6 Cyl 4.0 L GAS

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1-20 of 31 Results

Ford Explorer Oxygen Sensors

OEM Oxygen Sensors boasts unmatched quality. Each part goes through full quality checks. They adhere to Ford'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 Ford Explorer parts. We keep a wide inventory of OEM Explorer 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.

Ford Explorer cars incorporate oxygen sensors to measure the amount of remaining oxygen in the exhaust gases that are produced by the engine in regulating the air/fuel ratio and reducing the emissions. These oxygen sensors produce a voltage signal in proportion to the concentration of oxygen which is then used by the engine control computer to adjust the timing of the fuel injectors. Usually, today's Explorers come with at least one upstream sensor and one downstream of the catalyst; those with V6 or V8 engines may even have four. The most common is the zirconium dioxide sensor, which is placed in the exhaust manifold and heated, to achieve a faster response time. There may be new models which have wideband air / fuel ratio sensors that supply a wider range of information than the conventional narrow band sensors. Both types can also be contaminated, or degrade over time and age which results in increased emission and low fuel efficiency if the vehicle is not well maintained.

Ford Explorer Oxygen Sensors Parts and Q&A

Oxygen Sensor, Rear Driver Side
GU2Z-9G444-A
Q: How to Service the Heated Oxygen Sensors on Ford Explorer?
A:
Place the vehicle on a hoist and set neutral before beginning service of the heated oxygen sensor (HO2S). The RH HO2S requires removal of two bolts before setting the heat shield to the side. First disconnect the HO2S electrical connector then apply penetrating and lock lubricant on the connector when needed to aid removal. You must use the exhaust gas oxygen sensor socket to uninstall the oxygen sensor known as HO2S. Before installation you must apply nickel anti-seize lubricant lightly to the threads of the new HO2S before tightening it to 41 Nm (30 lb-ft) using the original socket. Reinstall the HO2S electrical connector afterward before placing the heat shield if needed and fastening it with its 2 bolts at 20 Nm (177 lb-in) torque.