What safety precautions should be observed when servicing the fuel gauge sender and fuel pump module on Mercury Mariner?

Following the rules of safety is critical during maintenance on the fuel gauge sender and fuel pump module because they contain dangerous fuel mixtures. The first step involves managing fuel system pressure and then separating the battery grounding cable. Clean all surfaces of the module connections and couplings and the flange while you remove the fuel pump module access cover. Place absorbent towels around the space to catch fuel drips before unfastening the quick disconnect coupling between the fuel tube and the fuel pump module and the quick disconnect coupling of the recirculation tube linking the fuel tank filler with the module. Start by attaching a fuel storage tanker through the fuel pump module recirculation tube port on the fuel tank filler pipe to drain approximately one-fourth of fuel which will lower the fuel level under the pump module mounting flange. The Fuel Tank Sender Unit Wrench should be used to take out the lock ring with caution to avoid damaging the fuel pump module. The technician should drain excess fuel into a proper container then fully remove the fuel pump module from the fuel tank. Check the fuel pump module flange where it contacts the fuel tank O-ring seal surfaces; replacement of the module or tank becomes necessary when damage is identified. Workers should apply engine oil to a fresh O-ring seal before they dispose of the old O-ring and properly install the new O-ring together with its lock ring. The assembly ends by reversing removal steps while ensuring the alignment markers face each other between the fuel pump module and fuel tank then tightening the lock ring until it rests on the stop tabs on the fuel tank.

OEM Mercury Mariner Fuel Pump

Gas Pump

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11 Fuel Pumps found

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Mercury Mariner Fuel Pump
Part Number: AM6Z-9H307-A
$246.30 MSRP: $394.55
You Save: $148.25 (38%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sender And Pump Assembly; Fuel Pump and Sender Assembly; Fuel Pump Module Assembly; Electric Fuel Pump; Fuel Pump Assembly
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2010-2011 Mercury Mariner | Hybrid | 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV)
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Mercury Mariner Fuel Pump
Part Number: 9M6Z-9H307-C
$249.70 MSRP: $400.00
You Save: $150.30 (38%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sender And Pump Assembly; Electric Fuel Pump; Fuel Pump Module Assembly; Fuel Pump Assembly
- Replaces: 9M6Z-9H307-A, 9M6Z-9H307-B, PFS-477
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2009 Mercury Mariner | Hybrid | 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV)
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Mercury Mariner Fuel Pump
Part Number: AL8Z-9H307-A
$248.57 MSRP: $412.73
You Save: $164.16 (40%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sender And Pump Assembly; Electric Fuel Pump; Fuel Pump Module Assembly; Fuel Pump Assembly
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2010-2011 Mercury Mariner | Base, Premier | 4 Cyl 2.5 L GAS
View related parts
Mercury Mariner Fuel Pump Assembly
Part Number: 7M6Z-9H307-C
$426.09 MSRP: $803.64
You Save: $377.55 (47%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sender And Pump Assembly
- Replaces: 5M6Z-9H307-A, PFS-351, PFS-611, 7M6Z-9H307-A, 7M6Z-9H307-B, 6M6Z-9H307-AA, PFS-405, 5M6Z-9H307-AA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2006-2007 Mercury Mariner | Hybrid | 4 Cyl 2.3 L FULL HYBRID EV-GAS (FHEV)
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Mercury Mariner Fuel Pump
Part Number: 8M6Z-9H307-D
$352.99 MSRP: $565.45
You Save: $212.46 (38%)
ADD TO CART
Product Specifications
- Other Name: Sender And Pump Assembly; Fuel Pump and Sender Assembly; Electric Fuel Pump; Fuel Pump and Strainer Set; Fuel Pump Assembly
- Replaces: 8M6Z-9H307-A, PFS-408, 8M6Z-9H307-B, PFS-512, PFS-513, 8M6Z-9H307-C
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2008 Mercury Mariner | Hybrid | 4 Cyl 2.3 L FULL HYBRID EV-GAS (FHEV)
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Mercury Mariner Fuel Pump
Part Number: 8L8Z-9H307-J
$280.35 MSRP: $449.09
You Save: $168.74 (38%)
ADD TO CART
Product Specifications
- Other Name: Sender And Pump Assembly; Electric Fuel Pump; Fuel Pump and Strainer Set; Fuel Pump Module Assembly; Fuel Pump Assembly
- Replaces: 8L8Z-9H307-C, PFS-468, 8L8Z-9H307-D
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2008 Mercury Mariner | Base, Premier | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
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Mercury Mariner Fuel Pump
Part Number: AL8Z-9H307-C
$261.71 MSRP: $434.55
You Save: $172.84 (40%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sender And Pump Assembly; Electric Fuel Pump; Fuel Pump Module Assembly; Fuel Pump Assembly
- Replaces: AL8Z-9H307-B, PFS-533
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2010-2011 Mercury Mariner | Base, Premier | 6 Cyl 3.0 L FLEX
View related parts
Mercury Mariner Fuel Pump
Part Number: 9L8Z-9H307-C
$245.28 MSRP: $407.27
You Save: $161.99 (40%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sender And Pump Assembly; Electric Fuel Pump; Fuel Pump Module Assembly; Fuel Pump Assembly
- Replaces: 9L8Z-9H307-A, 9L8Z-9H307-B
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2009 Mercury Mariner | Base, Premier | 4 Cyl 2.5 L GAS, 6 Cyl 3.0 L GAS
View related parts
Mercury Mariner Fuel Pump
Part Number: 7L8Z-9H307-B
Product Specifications
- Other Name: Sender And Pump Assembly; Electric Fuel Pump; Fuel Pump and Strainer Set; Fuel Pump Module Assembly; Fuel Pump Kit; Fuel Pump Assembly
- Replaces: 5L8Z-9H307-BD, 6L8Z-9H307-BA, 5L8Z-9H307-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2007 Mercury Mariner | Base, Convenience, Hybrid, Luxury, Premier | 4 Cyl 2.3 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
View related parts
Mercury Mariner Fuel Pump
Part Number: 7L8Z-9H307-D
$288.29 MSRP: $461.82
You Save: $173.53 (38%)
Product Specifications
- Other Name: Sender And Pump Assembly; Electric Fuel Pump; Fuel Pump and Strainer Set; Fuel Pump Module Assembly; Fuel Pump Assembly
- Replaces: 5L8Z-9H307-CC, 5L8Z-9H307-B, 7L8Z-9H307-C, PFS-350, 6L8Z-9H307-CA, PFS-404
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2007 Mercury Mariner | Base, Convenience, Hybrid, Premier | 4 Cyl 2.3 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
View related parts
Mercury Mariner Fuel Pump
Part Number: 8L8Z-9H307-H
$249.70 MSRP: $400.00
You Save: $150.30 (38%)
Product Specifications
- Other Name: Sender And Pump Assembly; Electric Fuel Pump; Fuel Pump and Strainer Set; Fuel Pump Module Assembly; Fuel Pump Assembly
- Replaces: 8L8Z-9H307-F, 8L8Z-9H307-G, PFS-478
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2008 Mercury Mariner | Base, Premier | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS

Mercury Mariner Fuel Pump

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Mercury Mariner Fuel Pump Parts Questions & Experts Answers

Fuel Pump
9M6Z-9H307-C
Q: What safety precautions should be observed when servicing the fuel gauge sender and fuel pump module on Mercury Mariner?
A: Following the rules of safety is critical during maintenance on the fuel gauge sender and fuel pump module because they contain dangerous fuel mixtures. The first step involves managing fuel system pressure and then separating the battery grounding cable. Clean all surfaces of the module connections and couplings and the flange while you remove the fuel pump module access cover. Place absorbent towels around the space to catch fuel drips before unfastening the quick disconnect coupling between the fuel tube and the fuel pump module and the quick disconnect coupling of the recirculation tube linking the fuel tank filler with the module. Start by attaching a fuel storage tanker through the fuel pump module recirculation tube port on the fuel tank filler pipe to drain approximately one-fourth of fuel which will lower the fuel level under the pump module mounting flange. The Fuel Tank Sender Unit Wrench should be used to take out the lock ring with caution to avoid damaging the fuel pump module. The technician should drain excess fuel into a proper container then fully remove the fuel pump module from the fuel tank. Check the fuel pump module flange where it contacts the fuel tank O-ring seal surfaces; replacement of the module or tank becomes necessary when damage is identified. Workers should apply engine oil to a fresh O-ring seal before they dispose of the old O-ring and properly install the new O-ring together with its lock ring. The assembly ends by reversing removal steps while ensuring the alignment markers face each other between the fuel pump module and fuel tank then tightening the lock ring until it rests on the stop tabs on the fuel tank.