How to Service and Repair the Power Steering Hose from the Pump to the Steering Gear on Mercury Mariner?

A registered workshop formally known as a hoist should position the vehicle in neutral gear before servicing the power steering line from the pump to steering gear. The power steering procedure for vehicles equipped with 3.0L (4V) engine starts with pumping pulley removal and disconnecting the power steering pressure switch (PSP) electrical connector. The power steering fluid drainage requires a suitable pan followed by power steering pressure line fitting nut removal with a specific torque value of 65 Nm (48 ft. lbs.) for 2.3L engines and 73 Nm (54 ft. lbs.) for 3.0L engines for installation. The power steering pressure line bracket nut requires tightening to 9 Nm (80 inch lbs.) while servicing the 2.3L engine yet requires 12 Nm (9 ft. lbs.) tightening for 3.0L engine installation. Install the power steering pressure line bracket to steering gear by tightening the bolt to 10 Nm (89 inch lbs.) strength. You need to uninstall the power steering line clamp plate bolt then reapply it at 25 Nm (18 ft. lbs.) torque. Due to their varying diameters the power steering pressure and return lines use O-rings which cannot be exchanged between each other. The clamp plate needs rotation to access the power steering pump-to-steering gear pressure line before installation of a new high-pressure line O-ring. The components must be installed by following the removal steps in the opposite order along with power steering system filling procedures.

OEM Mercury Mariner Power Steering Hose

Power Steering Pressure Hose

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9 Power Steering Hoses found

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Mercury Mariner Power Steering Pressure Hose Part Number: YL8Z-3A719-DA
$114.84 MSRP: $156.28
You Save: $41.44 (27%)
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Product Specifications
- Other Name: Hose Assembly; Power Steering Hose; Pressure Hose
- Replaces: YL8Z-3A719-CA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005 Mercury Mariner | Premier | 6 Cyl 3.0 L GAS
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Mercury Mariner Power Steering Pressure Hose, Front Part Number: 6L8Z-3A719-C
$34.35 MSRP: $54.55
You Save: $20.20 (38%)
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Product Specifications
- Other Name: Hose Assembly; Power Steering Line, Front; Power Steering Hose; Connector Hose
- Position: Front
- Replaces: YL8Z-3A719-AB
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005 Mercury Mariner | Premier | 6 Cyl 3.0 L GAS
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Mercury Mariner Power Steering Pressure Hose Part Number: 6L8Z-3A719-E
$188.76 MSRP: $313.42
You Save: $124.66 (40%)
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Product Specifications
- Other Name: Hose Assembly; Power Steering Hose; Pressure Hose
- Manufacturer Note: The Pressure Transducer Is No Longer Provided With This Assembly; Must Be Obtained Separately If Necessary
- Replaces: 6L8Z-3A719-B, 5L8Z-3A719-BA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2007 Mercury Mariner | Luxury, Premier | 6 Cyl 3.0 L GAS
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Mercury Mariner Power Steering Return Hose, Front Part Number: 2L8Z-3A713-AA
$13.78 MSRP: $18.75
You Save: $4.97 (27%)
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Product Specifications
- Other Name: Tube Assembly; Power Steering Line, Front; Power Steering Hose; Return Line
- Position: Front
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2007 Mercury Mariner | Base, Convenience, Luxury, Premier | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
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Mercury Mariner Tube Assembly, Front Part Number: 6L8Z-3D746-C
$139.78 MSRP: $193.37
You Save: $53.59 (28%)
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Product Specifications
- Other Name: Coil - Cooling; Power Steering Cooler Line, Front; Power Steering Cooler Tube
- Position: Front
- Replaces: 6L8Z-3D746-AA, 6L8Z-3D746-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2007 Mercury Mariner | Base, Convenience, Luxury, Premier | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
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Mercury Mariner Power Steering Return Hose Part Number: 6L8Z-3A713-A
$84.04 MSRP: $133.45
You Save: $49.41 (38%)
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Product Specifications
- Other Name: Tube Assembly; Power Steering Hose; Return Hose
- Replaces: 3L8Z-3A713-BA, 5L8Z-3A713-K
- 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
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Mercury Mariner Reservoir Hose Part Number: 5L8Z-3691-BA
Product Specifications
- Other Name: Hose - Connecting; Power Steering Reservoir Hose; Power Steering Hose
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2007 Mercury Mariner | Luxury, Premier | 6 Cyl 3.0 L GAS
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Mercury Mariner Reservoir Hose Part Number: 5L8Z-3691-AA
Product Specifications
- Other Name: Hose - Connecting; Power Steering Reservoir Hose; Power Steering Hose
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2007 Mercury Mariner | Base, Convenience | 4 Cyl 2.3 L GAS
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Mercury Mariner Power Steering Pressure Hose Part Number: 6L8Z-3A719-A
Product Specifications
- Other Name: Hose Assembly; Power Steering Hose; Pressure Hose
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2007 Mercury Mariner | Base, Convenience, Hybrid | 4 Cyl 2.3 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.3 L GAS

Mercury Mariner Power Steering Hose

OEM Power Steering Hose 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 Power Steering Hose with long life and a perfect fit. Come to our website and find genuine Mercury Mariner parts. We keep a wide inventory of OEM Mariner 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.

This is a Mercury Mariner Power Steering Hose that acts as a component of the power steering system that improves the steering efficacy of different Mercury Mariner models. This high-quality Power Steering Hose helps in flowing hydraulic fluid or steering fluid between the power steering pump and the steering gear to enable easy movement to the steering. The Mercury Mariner Power Steering Hose is manufactured from reinforced rubber and has been tested and proven to dispel high pressure while at the same time delivering fluids. This compatibility with multiple models in the Mariner series means that drivers can retain the optimal in steering performance right across the generations of this compact crossover SUV. It is not just an extra gadget which adds glamour and beauty to the car's interior but an important component that enhances the performance of the car; for instance, the Power Steering Hose helps to avoid typical problems like the leakages of the fluid which can cause the increase in the steering efforts and the pump noise. Mercury Mariner Power Steering Hose has firm fittings together with the arrangements that suits high tension as well as lower tension systems so that makes a strong connection. One part of the Mercury Mariner, which is highly praised for its magnificent design and constructive features, is the suspension, which provides more comfortable ride and also plays significant role in security of the car. The Mercury Mariner Power Steering Hose boasts of a great performance and quality that is why it is now considered a key component for the Mercury Mariner vehicles.

Mercury Mariner Power Steering Hose Parts and Q&A

Power Steering Pressure Hose
6L8Z-3A719-E
Q: How to Service and Repair the Power Steering Hose from the Pump to the Steering Gear on Mercury Mariner?
A:
A registered workshop formally known as a hoist should position the vehicle in neutral gear before servicing the power steering line from the pump to steering gear. The power steering procedure for vehicles equipped with 3.0L (4V) engine starts with pumping pulley removal and disconnecting the power steering pressure switch (PSP) electrical connector. The power steering fluid drainage requires a suitable pan followed by power steering pressure line fitting nut removal with a specific torque value of 65 Nm (48 ft. lbs.) for 2.3L engines and 73 Nm (54 ft. lbs.) for 3.0L engines for installation. The power steering pressure line bracket nut requires tightening to 9 Nm (80 inch lbs.) while servicing the 2.3L engine yet requires 12 Nm (9 ft. lbs.) tightening for 3.0L engine installation. Install the power steering pressure line bracket to steering gear by tightening the bolt to 10 Nm (89 inch lbs.) strength. You need to uninstall the power steering line clamp plate bolt then reapply it at 25 Nm (18 ft. lbs.) torque. Due to their varying diameters the power steering pressure and return lines use O-rings which cannot be exchanged between each other. The clamp plate needs rotation to access the power steering pump-to-steering gear pressure line before installation of a new high-pressure line O-ring. The components must be installed by following the removal steps in the opposite order along with power steering system filling procedures.