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Mercury Mountaineer Oil Cooler Line

7 items

Keep your engine cool with A-Premium's reliable oil cooler lines. Trust our high-quality parts for the best performance and durability.

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Transmission Oil Cooler Fluid Lines Tube for Ford Explorer Mercury MountaineerTransmission Oil Cooler Fluid Lines Tube for Ford Explorer Mercury Mountaineer
A-Premium®Part # APOCL406
Transmission Oil Cooler Fluid Lines Tube for Ford Explorer Mercury Mountaineer
4.535 Reviews
$137.99
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3-year warranty
90 days free return
Fits 2007 - 2010 Ford Explorer, 2007 - 2010 Ford Explorer Sport Trac, 2007 - 2010 Mercury Mountaineer
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Mercury Mountaineer
Item LocatedUnited States
QuantityOne Set
ConditionNew
item #10156ETN
Note
【Note-1】 This item comes with Supply & Return Lines -- One goes to the radiator, the other goes towards the auxiliary cooler but does not connect to it. There is a soft hose between this line and the aux cooler--AL2Z7B028A(NOT Included in this sale).;
【Note-2】 The other line in the system comes from the aux cooler and connects to the radiator--7L2Z 7890-A (NOT Included in this sale).
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Transmission Oil Cooler Line Assembly for Ford E-150 E-250 Expedition F-150
A-Premium®Part # APOCL086
Transmission Oil Cooler Line Assembly for Ford E-150 E-250 Expedition F-150
4.535 Reviews
$32.99
Low stock: Only 2 left
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3-year warranty
90 days free return
Fits 2004 - 2005 Ford F-150, 2004 - 2005 Ford F-450 Super Duty, 2004 - 2004 Ford F-150 Heritage, 2003 - 2005 Ford E-250, 2003 - 2005 Ford E-450 Super Duty, 2003 - 2005 Mercury Grand Marquis, 2003 - 2004 Ford E-150, 2003 - 2003 Ford E-350 Club Wagon, 2003 - 2003 Ford F-150, 2003 - 2003 Lincoln Town Car, 2002 - 2005 Ford E-350 Super Duty, 2002 - 2005 Ford F-250 Super Duty, 2002 - 2005 Ford F-350 Super Duty, 2002 - 2005 Ford F-550 Super Duty, 2002 - 2002 Ford F-450 Super Duty, 2002 - 2002 Lincoln Town Car, 2002 - 2002 Mercury Grand Marquis, 2001 - 2002 Ford E-350 Econoline Club Wagon, 2001 - 2002 Ford Expedition, 2001 - 2001 Ford Crown Victoria
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Mercury Mountaineer
Item LocatedUnited States
Installation PositionInlet and Outlet
ColorBlack
ConditionNew
item #1003ZR0W
Note
Inlet and Outlet Hose -- To 5/16 In. Cooler Lines.
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Auto Trans Oil Cooler Line Assembly for Ford Explorer 2005 Mercury Mountaineer
A-Premium®Part # APOCL201
Auto Trans Oil Cooler Line Assembly for Ford Explorer 2005 Mercury Mountaineer
4.535 Reviews
$74.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2005 - 2005 Ford Explorer, 2005 - 2005 Ford Explorer Sport Trac, 2005 - 2005 Mercury Mountaineer
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Mercury Mountaineer
Item LocatedUnited States
Installation PositionInlet and Outlet
ColorNatural
ConditionNew
item #1003ZYT0
Note
The line only fits vehicles with automatic trans.
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Inlet Engine Oil Cooler Hose Assembly for Ford Explorer 02-10 Mercury Mountaineer
A-Premium®Part # APOCL160
Inlet Engine Oil Cooler Hose Assembly for Ford Explorer 02-10 Mercury Mountaineer
4.535 Reviews
$81.99
Low stock: Only 5 left
Edit ZIP code
3-year warranty
90 days free return
Fits 2007 - 2010 Ford Explorer Sport Trac, 2002 - 2010 Ford Explorer, 2002 - 2010 Mercury Mountaineer
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Mercury Mountaineer
Item LocatedUnited States
Installation PositionInlet
ColorNatural, Black
ConditionNew
item #1003ZXD0
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Automatic Trans Oil Cooler Hose for Ford Explorer Ranger Mercury Mountaineer
A-Premium®Part # APOCL309
Automatic Trans Oil Cooler Hose for Ford Explorer Ranger Mercury Mountaineer
4.535 Reviews
$48.99
Low stock: Only 4 left
Edit ZIP code
3-year warranty
90 days free return
Fits 1998 - 2005 Ford Ranger, 1998 - 2005 Ford Ranger, 1998 - 2001 Mercury Mountaineer, 1997 - 2001 Ford Explorer
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Mercury Mountaineer
Item LocatedUnited States
Installation PositionAuxiliary Cooler to Radiator (Lower)
ColorNatural
ConditionNew
item #1004V0WR
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Auto Trans Oil Cooler Hose for Ford Explorer 1997-2001 Ranger Mercury V6 4.0L
A-Premium®Part # APOCL332
Auto Trans Oil Cooler Hose for Ford Explorer 1997-2001 Ranger Mercury V6 4.0L
4.535 Reviews
$61.99
Low stock: Only 2 left
Edit ZIP code
3-year warranty
90 days free return
Fits 2004 - 2005 Ford Ranger, 1998 - 2003 Ford Ranger, 1998 - 2001 Mercury Mountaineer, 1997 - 2001 Ford Explorer
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Mercury Mountaineer
Item LocatedUnited States
Installation PositionAuxiliary Cooler (Passenger Side) to Transmission
ColorNatural
ConditionNew
item #1004V43Z
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Transmission Oil Cooler Line Assembly for Ford Explorer 07-10 Mercury 4.0L 4.6L
A-Premium®Part # APOCL198
Transmission Oil Cooler Line Assembly for Ford Explorer 07-10 Mercury 4.0L 4.6L
4.535 Reviews
$41.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2010 - 2010 Ford Explorer, 2009 - 2010 Ford Explorer Sport Trac, 2009 - 2010 Mercury Mountaineer, 2009 - 2009 Ford Explorer, 2007 - 2008 Ford Explorer, 2007 - 2008 Ford Explorer Sport Trac, 2007 - 2008 Mercury Mountaineer
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Mercury Mountaineer
Item LocatedUnited States
Installation PositionAuxiliary Cooler to Radiator
ColorNatural, Black
ConditionNew
item #1003ZVL3
Note
The line is from the auxiliary cooler to radiator.
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What is an oil cooler line for?

 

Oil cooler lines are designed to carry oil from the engine to the oil cooler and back. The oil cooler is an important component in the engine cooling system, as it helps regulate the engine oil temperature, improving engine performance and extending engine life.

 

What causes an engine oil cooler line to leak?

 

Engine oil cooler line leaks can be caused by:

 

  • Age and wear: Over time, oil cooler lines can become worn or brittle due to age, heat, and exposure to the elements. This can cause the lines to crack or develop leaks.
  • Corrosion: If the oil cooler lines are made of metal, they can corrode over time due to exposure to moisture or other corrosive substances. This can cause the lines to weaken or develop leaks.
  • Improper installation: If the oil cooler lines are not properly installed, they may become misaligned or damaged, which can cause leaks.
  • High pressure: If the engine oil pressure is too high, it can put extra stress on the oil cooler lines, causing them to fail or develop leaks.
  • Impact damage: If the oil cooler lines are located in a vulnerable position, they may be damaged by rocks, debris, or other objects, which can cause leaks.
  • If a leak is detected, it should be repaired promptly to avoid engine damage and reduced performance.

 

How to replace an oil cooler line?

 

To replace an oil cooler line, you need to first drain the engine oil, then locate and remove the damaged line. Then install the new line with new gaskets or O-rings if needed. After that, refill the engine oil and check for leaks to test drive the vehicle. Specific steps may vary depending on the vehicle, so consulting the owner's manual or a mechanic for guidance may be more helpful.

Related Blogs

What Are Oil Cooler Lines and Everything You Need to Know

The oil cooler lines are a critical component of the engine's cooling system. They play a vital role in regulating the temperature of the engine oil, which is essential for the proper operation and longevity of the engine.

Jul 21, 2026

A Comprehensive Guide to Replacing the Engine Oil Cooler Line

A-Premium oil cooler line helps maintain optimal engine oil temperature, ensuring effective lubrication and cooling. Recognizing the importance of timely oil cooler line replacement is the key to preserving your engine's long-term health and performance.

Jul 21, 2026