How to Safely Service and Repair a Fuel Level Sensor on Mercury Mountaineer?

Service and repair of the fuel level sensor requires you to remove the fuel pump first. Start by unscrewing the fuel level sensor cover followed by the removal of its screw. Notate where the fuel level sensor wire will be routed because it will be needed during the installation stage. Next, remove the covering heat shrink tube from the connector of the fuel level sensor wire and detach the connection wire. Take note of the fuel level sensor ground wire route before unscrewing its connection to detach the wire from the sensor. Position the fuel level sensor ground wire alongside the fuel pump body with the fuel level sensor wire neatly passing through the fuel pump center point before they should sit behind the metal sending unit plate. Secure the fuel level sensor onto the fuel pump then apply screw pressure to fix it followed by connecting the ground wire. The wire harness should have the heat shrink tube placed on it before connecting the fuel level sensor wire electrical connector. A heat gun should be used to shrink the heat shrink tube without exposing fan-cooled fuel residue to open flames. After that, attach the fuel level sensor cover by tightening its screw before you put back the fuel pump.

OEM Mercury Mountaineer Fuel Level Sensor

Gas Gauge Sensor

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11 Fuel Level Sensors found

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Mercury Mountaineer Fuel Gauge Sending Unit Part Number: 7L2Z-9A299-B
$75.71 MSRP: $104.74
You Save: $29.03 (28%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sender Assembly - Fuel Tank; Fuel Level Sensor; Fuel Sending Unit
- Manufacturer Note: Service Fix
- Replaces: 4L2Z-9A299-CA, 5L2Z-9A299-A, PS-242
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2004-2006 Mercury Mountaineer | Base, Convenience, Luxury, Premier | 8 Cyl 4.6 L GAS
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Mercury Mountaineer Fuel Gauge Sending Unit Part Number: 1L2Z-9A299-CB
$41.80 MSRP: $57.83
You Save: $16.03 (28%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sender Assembly - Fuel Tank; Fuel Tank Sending Unit; Fuel Level Sensor; Fuel Sending Unit
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2002-2003 Mercury Mountaineer | Base | 8 Cyl 4.6 L GAS
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Mercury Mountaineer Fuel Gauge Sending Unit Part Number: 7L2Z-9A299-A
$131.50 MSRP: $216.36
You Save: $84.86 (40%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sender Assembly - Fuel Tank; Fuel Sender & Hanger Assembly; Fuel Level Sensor; Fuel Sender Unit; Sending Unit
- Replaces: 6L2Z-9A299-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2007-2010 Mercury Mountaineer | Base, Premier | 6 Cyl 4.0 L GAS, 8 Cyl 4.6 L GAS
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Mercury Mountaineer Fuel Pump Part Number: F67Z-9H307-BB
$462.79 MSRP: $634.96
You Save: $172.17 (28%)
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Product Specifications
- Other Name: Sender And Pump Assembly; Electric Fuel Pump; Fuel Pump Module; Fuel Level Sensor; Fuel Sending Unit.; Fuel Gauge Sending Unit
- Replaces: F67Z-9H307-BA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1997 Mercury Mountaineer | Base | 8 Cyl 5.0 L GAS
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Mercury Mountaineer Fuel Gauge Sending Unit Part Number: 5L2Z-9A299-B
$54.63 MSRP: $75.58
You Save: $20.95 (28%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sender Assembly - Fuel Tank; Fuel Level Sensor; Fuel Sending Unit
- Replaces: 4L2Z-9A299-DA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2006 Mercury Mountaineer | Luxury, Premier | 8 Cyl 4.6 L GAS
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Mercury Mountaineer Fuel Gauge Sending Unit Part Number: 1L2Z-9A299-DB
$45.19 MSRP: $72.91
You Save: $27.72 (39%)
ADD TO CART
Product Specifications
- Other Name: Sender Assembly - Fuel Tank; Fuel Tank Sending Unit; Fuel Level Sensor; Fuel Sending Unit; Fuel Sender Unit
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2002-2005 Mercury Mountaineer | Base, Convenience, Luxury, Premier
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Mercury Mountaineer Fuel Pump Part Number: XL2Z-9H307-A
Product Specifications
- Other Name: Sender And Pump Assembly; Electric Fuel Pump; Fuel Pump Module; Fuel Tank Sending Unit; Fuel Level Sensor.; Fuel Gauge Sending Unit
- Replaces: PFS-422, XL2Z-9H307-AK, XL2Z-9H307-AL
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1999-2001 Mercury Mountaineer | Base | 6 Cyl 4.0 L GAS, 8 Cyl 5.0 L GAS
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Mercury Mountaineer Fuel Pump Part Number: F7PZ-9H307-BE
Product Specifications
- Other Name: Sender And Pump Assembly; Electric Fuel Pump; Fuel Tank Sending Unit; Fuel Level Sensor; Fuel Pump Hanger.; Fuel Gauge Sending Unit
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1997-1998 Mercury Mountaineer | Base | 6 Cyl 4.0 L GAS, 8 Cyl 5.0 L GAS
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Mercury Mountaineer Fuel Pump Part Number: F8PZ-9H307-AD
Product Specifications
- Other Name: Sender And Pump Assembly; Fuel Level Sensor; Fuel Sending Unit; Fuel Gauge Sending Unit; Fuel Pump Assembly
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1998 Mercury Mountaineer | Base | 6 Cyl 4.0 L GAS, 8 Cyl 5.0 L GAS
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Mercury Mountaineer Fuel Gauge Sending Unit Part Number: 2L2Z-9H307-HD
Product Specifications
- Other Name: Sender And Pump Assembly; Electric Fuel Pump; Fuel Strainer Set; Fuel Level Sensor; Hanger Assembly
- Replaces: 2L2Z-9H307-HB, PFS-14, 2L2Z-9H307-HC, PFS-437
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2001 Mercury Mountaineer | Base | 6 Cyl 4.0 L GAS, 8 Cyl 5.0 L GAS
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Mercury Mountaineer Fuel Gauge Sending Unit Part Number: F77Z-9275-CA
Product Specifications
- Other Name: Sender Assembly; Fuel Tank Sending Unit; Fuel Level Sensor; Fuel Sending Unit; Fuel Sender Unit
- Manufacturer Note: Also serviced in 9H307
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2001 Mercury Mountaineer | Base | 6 Cyl 4.0 L GAS, 8 Cyl 5.0 L GAS

Mercury Mountaineer Fuel Level Sensor

OEM Fuel Level Sensor boasts unmatched quality. Each part goes through full quality checks. They adhere to Mercury's official factory standards. These steps remove flaws and inconsistencies. So you can get Fuel Level Sensor with long life and a perfect fit. Come to our website and find genuine Mercury Mountaineer parts. We keep a wide inventory of OEM Mountaineer 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.

Mercury Mountaineer Fuel Level Sensor is one of the decisive elements that speak about dependability and power in SUV line of Mercury Mountaineer models. This smart Vehicle Type: Fuel Level Sensor is developed to detect the fuel level inside the tank, so that the driver will timely know when to refill the fuel. Being entirely electronic, it can work in high temperatures without drawing much current, which makes the high-temperature, low-power architecture feature unique to the Mercury Mountaineer produced from 1996 through to 2010. The Fuel Level Sensor is usually inside the fuel tank and includes float, or an actuating rod and a resistor to send accurate signals to the fuel gauge. This accuracy is quite important since wrong reading can lead to wrong estimate of the fuel stocks which in turn results in unplanned low fuel stock hence improving efficiency as well as safety for the drivers. This Mercury Mountaineer Fuel Level Sensor fits the third generation Mountaineer as well as the second and the first generation of this model, so that each of the car will get advantages from this perfect functioning sensor. As a matter of fact, this is the sensor whose accurate and consistent readings add a lot of value in the area of drive making it a very vital feature for the Mercury Mountaineer car. The Mercury Mountaineer Fuel Level Sensor has a strong build and an added design that makes the product unique in the market and shows the confidence and adherence of Mercury to quality cars for the driving pleasures of the consumers.

Mercury Mountaineer Fuel Level Sensor Parts and Q&A

Fuel Gauge Sending Unit
7L2Z-9A299-A
Q: How to Safely Service and Repair a Fuel Level Sensor on Mercury Mountaineer?
A:
Service and repair of the fuel level sensor requires you to remove the fuel pump first. Start by unscrewing the fuel level sensor cover followed by the removal of its screw. Notate where the fuel level sensor wire will be routed because it will be needed during the installation stage. Next, remove the covering heat shrink tube from the connector of the fuel level sensor wire and detach the connection wire. Take note of the fuel level sensor ground wire route before unscrewing its connection to detach the wire from the sensor. Position the fuel level sensor ground wire alongside the fuel pump body with the fuel level sensor wire neatly passing through the fuel pump center point before they should sit behind the metal sending unit plate. Secure the fuel level sensor onto the fuel pump then apply screw pressure to fix it followed by connecting the ground wire. The wire harness should have the heat shrink tube placed on it before connecting the fuel level sensor wire electrical connector. A heat gun should be used to shrink the heat shrink tube without exposing fan-cooled fuel residue to open flames. After that, attach the fuel level sensor cover by tightening its screw before you put back the fuel pump.