How to replace fuel injectors and Fuel Rail on Mercury Mariner?

To replace fuel injectors, relieve the fuel system pressure, and remove the fuel filler cap. Disconnect the negative battery terminal and remove the air intake duct. Next, disconnect the fuel supply line from the fuel rail and the vacuum line from the fuel pulsation damper. Replace the old O-rings on each injector.

Genuine Mercury Mariner Fuel Rail

Engine Fuel Rail

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7 Fuel Rails found

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Mercury Mariner Fuel Supply Manifold Assembly
Part Number: 6M8Z-9D280-C
$86.53 MSRP: $138.00
You Save: $51.47 (38%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Manifold Assembly - Fuel Supply; Fuel Rail
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2009-2011 Mercury Mariner | 4 Cyl 2.5L Duratec (110kW/150PS), 4 Cyl 2.5L PFI Gas/Electric | 4AT CD4E, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
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Mercury Mariner Fuel Supply Manifold Assembly
Part Number: 5L8Z-9D280-AA
$171.60 MSRP: $238.38
You Save: $66.78 (29%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Manifold Assembly - Fuel Supply; Fuel Rail
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005 Mercury Mariner | 4 Cyl 2.3L | 4AT CD4E, 5-Speed Manual Transmission, 5-Speed Manual Transmission - AK, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Right Hand Drive), Left Hand Drive, Two-Wheel Drive (Left Hand Drive), Two-Wheel Drive (Right Hand Drive)
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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 | 6 Cyl 3.0L OHC Duratec | 4AT CD4E, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
View related parts
Mercury Mariner Fuel Supply Manifold Assembly
Part Number: 5L8Z-9D280-AE
Product Specifications
- Other Name: Manifold Assembly - Fuel Supply; Fuel Rail
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2007 Mercury Mariner | 4 Cyl 2.3L, 4 Cyl 2.3L Hybrid Gas/Electric DOHC | 4AT CD4E, 5-Speed Manual Transmission, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Right Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive, Two-Wheel Drive (Left Hand Drive), Two-Wheel Drive (Right Hand Drive)
View related parts
Mercury Mariner Fuel Supply Manifold Assembly
Part Number: 4L8Z-9F792-BE
Product Specifications
- Other Name: Manifold Assembly - Fuel Supply; Fuel Rail
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2008 Mercury Mariner | 6 Cyl 3.0L DOHC EFI Modular | 4AT CD4E, 5-Speed Manual Transmission, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Right Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive, Two-Wheel Drive (Left Hand Drive), Two-Wheel Drive (Right Hand Drive)
View related parts
Mercury Mariner Fuel Supply Manifold Assembly
Part Number: 9L8Z-9F792-A
Product Specifications
- Other Name: Manifold Assembly - Fuel ; Manifold Assy - Fuel Supply
- Replaced by: 9L8Z-9F792-B
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2009 Mercury Mariner | 6 Cyl 3.0L OHC Duratec | 4AT CD4E, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
View related parts
Mercury Mariner Fuel Supply Manifold Assembly
Part Number: 5L8Z-9D280-A
Product Specifications
- Other Name: Manifold Assembly - Fuel Supply; Fuel Rail
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2008 Mercury Mariner | 4 Cyl 2.3L, 4 Cyl 2.3L Hybrid Gas/Electric DOHC | 4AT CD4E, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive

Mercury Mariner Fuel Rail

The Mercury Mariner Fuel Rail delivers gas to each injector at the right pressure. This allows for clean combustion and quick power delivery. Early Mercury Mariner versions that employed throttle body injection featured a straightforward Fuel Rail that housed either one or two centrally positioned injectors that functioned at a low pressure. They were seen to occupy a middle ground between car carburetors and modern systems. With the adoption of multiport injection for the SUV, the Fuel Rail started functioning like a tubular manifold. The tubular manifold feeds individual port injectors mounted close to each intake valve. There is also an electric pump and built-in regulator to maintain pressure steady. This allows the powertrain computer to modify pulse width for idle or heavy load. Recent Mercury Mariner engines equipped with gasoline direct injection rely on a high-pressure common Fuel Rail exceeding 2,000 bar to allow the computer to deliver multiple precisely timed sprays directly into the combustion chamber for greater performance and lower emissions. Through the years, modifications in Mercury Mariner engines focus on pressure level, injector presence, and control speed, but there is steady fuel distribution owing to the presence of a robust Fuel Rail.

We provide a wide range of Mercury Mariner Fuel Rail at the optimal prices. If you need Mercury Mariner Fuel Rail, you can shop with confidence on our website. All our OEM parts come with a manufacturer's warranty and are delivered to your doorstep with a fast delivery service.

Mercury Mariner Fuel Rail Parts Questions & Experts Answers

Fuel Supply Manifold Assembly
6M8Z-9D280-C
Q: How to replace fuel injectors and Fuel Rail on Mercury Mariner?
A:
To replace fuel injectors, relieve the fuel system pressure, and remove the fuel filler cap. Disconnect the negative battery terminal and remove the air intake duct. Next, disconnect the fuel supply line from the fuel rail and the vacuum line from the fuel pulsation damper. Replace the old O-rings on each injector.