How to Service the Heated Oxygen Sensors on Ford Explorer Sport Trac?

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 Sport Trac Oxygen Sensors

Oxygen O2 Sensor

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Ford Explorer Sport Trac Oxygen Sensor, Rear Driver Side Part Number: GU2Z-9G444-A
$56.02 MSRP: $92.18
You Save: $36.16 (40%)
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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:
- 2007-2010, 2001-2005 Ford Explorer Sport Trac | Adrenalin, Base, Limited, XL, XLS, XLT | 6 Cyl 4.0 L GAS, 8 Cyl 4.6 L GAS
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Ford Explorer Sport Trac 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:
- 2001-2005 Ford Explorer Sport Trac | Adrenalin, Base, XL, XLS, XLT | 6 Cyl 4.0 L FLEX, 6 Cyl 4.0 L GAS
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Ford Explorer Sport Trac 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:
- 2007-2010 Ford Explorer Sport Trac | Limited, XLT | 6 Cyl 4.0 L GAS, 8 Cyl 4.6 L GAS

Ford Explorer Sport Trac 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 Sport Trac parts. We keep a wide inventory of OEM Explorer Sport Trac 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 Ford explorer sport trac vehicles relate to the monitoring of the air /fuel mixture in the engine exhaust. It is able to measure the amount of unused oxygen and compare it to the surrounding oxygen concentration and then sends a voltage signal to the engine control computer regarding the richness or the leanness of the mixture. This feedback lets the computer control the fuel injector pulse width and keep the catalytic converter working properly while minimizing emission. Ford Explorer Sport Trac automobiles normally have not less than 2 oxygen sensors, a upstream and a downstream of the catalytic converter, with the upstream oxygen sensor normally being the one that feeds again information. These sensors work at high temperatures; they can degrade or be contaminated and hence lead to the production of high emissions and low fuel economy. There are new car models that come with air/fuel ration sensors other than the oxygen sensors with broader air/fuel mixture gauging capacity.

Ford Explorer Sport Trac 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 Sport Trac?
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.