How should one service the fuel rail while ensuring safety and proper installation on Mercury Mariner?

Make sure you do not have any smoking or open flames when fuel rail is being serviced. Take the pressure off the fuel system, remove the battery and remove the fuel supply tube. Unscrew the fuel rail and injectors and throw away old O-rings. Insert fresh O-rings, re-fit and re-connect all the parts.

What precautions should be taken when servicing the fuel rail to avoid personal injury and ensure proper installation on Mercury Mariner?

Handling fuel rail When working on the fuel rail, do not smoke around the fuel components because of flammable mixtures. Seal fuel pressure and then unhook tubes. Take out fuel rail, fuel injector and dispose old O-rings. Install new fuel-resistant O-rings, lubricate them, and reinstall the parts, making sure that they are connected and torqued accordingly.

OEM Mercury Mariner Fuel Rail

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6 Fuel Rails found

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Mercury Mariner Fuel Rail Part Number: 6M8Z-9D280-C
$73.55 MSRP: $116.80
You Save: $43.25 (38%)
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Product Specifications
- Other Name: Manifold Assembly - Fuel Supply
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2009-2011 Mercury Mariner | Base, Hybrid, Premier | 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.5 L GAS
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Mercury Mariner Fuel Rail Part Number: 5L8Z-9D280-AA
$137.85 MSRP: $190.70
You Save: $52.85 (28%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Manifold Assembly - Fuel Supply
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005 Mercury Mariner | Base | 4 Cyl 2.3 L GAS
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Mercury Mariner Fuel Rail Part Number: 5L8Z-9D280-AE
Product Specifications
- Other Name: Manifold Assembly - Fuel Supply
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2006 Mercury Mariner | Base, Convenience, Hybrid | 4 Cyl 2.3 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.3 L GAS
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Mercury Mariner Fuel Rail Part Number: 4L8Z-9F792-BE
Product Specifications
- Other Name: Manifold Assembly - Fuel Supply
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2008 Mercury Mariner | Base, Luxury, Premier | 6 Cyl 3.0 L GAS
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Mercury Mariner Fuel Rail Part Number: 9L8Z-9F792-B
Product Specifications
- Other Name: Manifold Assembly - Fuel Supply
- Replaces: 9L8Z-9F792-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2009-2011 Mercury Mariner | Base, Premier | 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS
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Mercury Mariner Fuel Rail Part Number: 5L8Z-9D280-A
Product Specifications
- Other Name: Manifold Assembly - Fuel Supply
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2008 Mercury Mariner | Base, Hybrid | 4 Cyl 2.3 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.3 L GAS

Mercury Mariner Fuel Rail

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Mercury Mariner Fuel Rail Parts and Q&A

Fuel Rail
4L8Z-9F792-BE
Q: How should one service the fuel rail while ensuring safety and proper installation on Mercury Mariner?
A: Make sure you do not have any smoking or open flames when fuel rail is being serviced. Take the pressure off the fuel system, remove the battery and remove the fuel supply tube. Unscrew the fuel rail and injectors and throw away old O-rings. Insert fresh O-rings, re-fit and re-connect all the parts.
Fuel Rail
5L8Z-9D280-AE
Q: What precautions should be taken when servicing the fuel rail to avoid personal injury and ensure proper installation on Mercury Mariner?
A: Handling fuel rail When working on the fuel rail, do not smoke around the fuel components because of flammable mixtures. Seal fuel pressure and then unhook tubes. Take out fuel rail, Fuel Injector and dispose old O-rings. Install new fuel-resistant O-rings, lubricate them, and reinstall the parts, making sure that they are connected and torqued accordingly.