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Buick LeSabre Oil Cooler Line

3 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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2 Pcs Automatic Transmission Oil Cooler Lines for Buick LeSabre Pontiac Bonneville2 Pcs Automatic Transmission Oil Cooler Lines for Buick LeSabre Pontiac Bonneville
A-Premium®Part # APOCL609
2 Pcs Automatic Transmission Oil Cooler Lines for Buick LeSabre Pontiac Bonneville
4.535 Reviews
$76.99
Low stock: Only 2 left
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3-year warranty
90 days free return
Fits 2000 - 2005 Buick LeSabre, 2000 - 2005 Buick Park Avenue, 2000 - 2005 Pontiac Bonneville
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Buick LeSabre
Item LocatedUnited States
Quantity2
Installation PositionLower & Upper Radiator To Transmission; Inlet From Radiator (Lower) To Transmission (Front) & Transmission To Radiator (Upper)
ConditionNew
item #1018A633
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Automatic Trans Oil Cooler Hose for Buick LeSabre Park Avenue Pontiac Bonneville
A-Premium®Part # APOCL303
Automatic Trans Oil Cooler Hose for Buick LeSabre Park Avenue Pontiac Bonneville
4.535 Reviews
$40.99
Low stock: Only 2 left
Edit ZIP code
3-year warranty
90 days free return
Fits 2000 - 2005 Buick LeSabre, 2000 - 2005 Buick Park Avenue, 2000 - 2005 Pontiac Bonneville
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Buick LeSabre
Item LocatedUnited States
Quantity1
ColorNatural, Black
ConditionNew
item #1004V08U
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Auto Trans Oil Cooler Line Assembly for Buick LeSabre Park Avenue
A-Premium®Part # APOCL031
Auto Trans Oil Cooler Line Assembly for Buick LeSabre Park Avenue
4.535 Reviews
$39.99
Low stock: Only 5 left
Edit ZIP code
3-year warranty
90 days free return
Fits 2000 - 2005 Buick LeSabre, 2000 - 2005 Buick Park Avenue, 2000 - 2005 Pontiac Bonneville
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Buick LeSabre
Item LocatedUnited States
Installation PositionCheck the fitment chart
ColorNatural, Black
ConditionNew
item #1003ZS51
Show less

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.

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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.

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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