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Oil Cooler Line

2498 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 Line Assembly for 1999-2003 Lexus RX300Transmission Oil Cooler Line Assembly for 1999-2003 Lexus RX300
A-Premium®Part # APOCL246
Transmission Oil Cooler Line Assembly for 1999-2003 Lexus RX300
4.638 Reviews
$51.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits Lexus RX300: 1999 2000 2001 2002 2003
Check if this fits your vehicle
Item LocatedUnited States
Installation PositionInlet and Outlet
ColorNatural
ConditionNew
item #1003ZY06
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Outlet Transmission Oil Cooler Line Assembly for 2008-2019 Buick Enclave
A-Premium®Part # APOCL184
Outlet Transmission Oil Cooler Line Assembly for 2008-2019 Buick Enclave
4.638 Reviews
$46.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits Buick Enclave: 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019
Check if this fits your vehicle
Item LocatedUnited States
Installation PositionOutlet
ColorNatural, Black
ConditionNew
item #1003ZRUS
Show less
Inlet Upper Engine Oil Cooler Hose Assembly for 1988-1993 Chevrolet C3500
A-Premium®Part # APOCL121
Inlet Upper Engine Oil Cooler Hose Assembly for 1988-1993 Chevrolet C3500
4.638 Reviews
$60.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits Chevrolet C3500: 1988 1989 1990 1991 1992 1993
Check if this fits your vehicle
Item LocatedUnited States
Installation PositionInlet (Upper)
ColorNatural, Black
ConditionNew
item #1003ZZYU
Note
This part is the inlet (Upper) line.
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Auto Trans Oil Cooler Line Assembly for 2011 Ram Dakota
A-Premium®Part # APOCL270
Auto Trans Oil Cooler Line Assembly for 2011 Ram Dakota
4.638 Reviews
$75.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2011 Ram Dakota
Check if this fits your vehicle
Item LocatedUnited States
ColorNatural, Black
ConditionNew
item #1003ZWY9
Note
This item only fits the vehicle with 545RFE transmission(5 speed transmission), not 42RLE transmission(4 speed transmission).
Show less
Auto Trans Oil Cooler Line Assembly for 2006-2007 Mitsubishi Raider
A-Premium®Part # APOCL270
Auto Trans Oil Cooler Line Assembly for 2006-2007 Mitsubishi Raider
4.638 Reviews
$75.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits Mitsubishi Raider: 2006 2007
Check if this fits your vehicle
Item LocatedUnited States
ColorNatural, Black
ConditionNew
item #1003ZVQX
Note
This item only fits the vehicle with 545RFE transmission(5 speed transmission), not 42RLE transmission(4 speed transmission).
Show less
Transmission Oil Cooler Line Assembly for 2006-2009 Chevrolet Equinox
A-Premium®Part # APOCL250
Transmission Oil Cooler Line Assembly for 2006-2009 Chevrolet Equinox
4.638 Reviews
$100.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits Chevrolet Equinox: 2006 2007 2008 2009
Check if this fits your vehicle
Item LocatedUnited States
Installation PositionInlet and Outlet
ColorNatural, Black
ConditionNew
item #10040037
Show less
Lower Auto Trans Oil Cooler Line Assembly for 2000-2001 Dodge Durango
A-Premium®Part # APOCL214
Lower Auto Trans Oil Cooler Line Assembly for 2000-2001 Dodge Durango
4.638 Reviews
$34.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits Dodge Durango: 2000 2001
Check if this fits your vehicle
Item LocatedUnited States
Installation PositionLower
ColorNatural
ConditionNew
item #1003ZZZ7
Show less
Inlet Lower Engine Oil Cooler Hose Assembly for 1996-1999 Chevrolet K2500 Suburban
A-Premium®Part # APOCL133
Inlet Lower Engine Oil Cooler Hose Assembly for 1996-1999 Chevrolet K2500 Suburban
4.638 Reviews
$54.99
Low stock: Only 2 left
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits Chevrolet K2500 Suburban: 1996 1997 1998 1999
Check if this fits your vehicle
Item LocatedUnited States
Installation PositionInlet (Lower)
ColorNatural, Black
ConditionNew
item #1003ZGY6
Note
This part only fits vehicles with V8 7.4L engine.
Show less
Inlet Upper Engine Oil Cooler Hose Assembly for 1988-1995 GMC C2500
A-Premium®Part # APOCL121
Inlet Upper Engine Oil Cooler Hose Assembly for 1988-1995 GMC C2500
4.638 Reviews
$60.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits GMC C2500: 1988 1989 1990 1991 1992 1993 1994 1995
Check if this fits your vehicle
Item LocatedUnited States
Installation PositionInlet (Upper)
ColorNatural, Black
ConditionNew
item #1003ZY47
Note
This part is the inlet (Upper) line.
Show less
Inlet Upper Engine Oil Cooler Hose Assembly for 1992-1993 Chevrolet C1500 Suburban
A-Premium®Part # APOCL121
Inlet Upper Engine Oil Cooler Hose Assembly for 1992-1993 Chevrolet C1500 Suburban
4.638 Reviews
$60.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits Chevrolet C1500 Suburban: 1992 1993
Check if this fits your vehicle
Item LocatedUnited States
Installation PositionInlet (Upper)
ColorNatural, Black
ConditionNew
item #1003ZZTX
Note
This part is the inlet (Upper) line.
Show less
Inlet Transmission Oil Cooler Line Assembly for 2003-2007 Chevrolet C5500 Kodiak
A-Premium®Part # APOCL261
Inlet Transmission Oil Cooler Line Assembly for 2003-2007 Chevrolet C5500 Kodiak
4.638 Reviews
$69.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits Chevrolet C5500 Kodiak: 2003 2004 2005 2006 2007
Check if this fits your vehicle
Item LocatedUnited States
Installation PositionInlet
ColorNatural, Black
ConditionNew
item #1003ZYEG
Note
【Note-1】 For 2003-2007 Chevrolet GMC, it fits vehicles without RPO Code UXT (Transmission Temperature Gauge) and LCT 1000 Trans.
【Note-2】 For 2004-2007 Chevrolet GMC, it fits vehicles with RPO Code KNP (Heavy Duty Transmission Cooling System).
【Note-3】 For 2007 GMC C5500 Topkick/Chevrolet C5500 Kodiak, it fits vehicles with 1000PTS/1000MH/1000EVS/1000 Trans.
【Note-4】 For 2007 GMC C4500 Topkick/Chevrolet C4500 Kodiak, it fits vehicles with 1000PTS/1000EVS/1000 Trans.
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Inlet Transmission Oil Cooler Line Assembly for 2003-2007 GMC C4500 Topkick
A-Premium®Part # APOCL261
Inlet Transmission Oil Cooler Line Assembly for 2003-2007 GMC C4500 Topkick
4.638 Reviews
$69.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits GMC C4500 Topkick: 2003 2004 2005 2006 2007
Check if this fits your vehicle
Item LocatedUnited States
Installation PositionInlet
ColorNatural, Black
ConditionNew
item #1003ZW67
Note
【Note-1】 For 2003-2007 Chevrolet GMC, it fits vehicles without RPO Code UXT (Transmission Temperature Gauge) and LCT 1000 Trans.
【Note-2】 For 2004-2007 Chevrolet GMC, it fits vehicles with RPO Code KNP (Heavy Duty Transmission Cooling System).
【Note-3】 For 2007 GMC C5500 Topkick/Chevrolet C5500 Kodiak, it fits vehicles with 1000PTS/1000MH/1000EVS/1000 Trans.
【Note-4】 For 2007 GMC C4500 Topkick/Chevrolet C4500 Kodiak, it fits vehicles with 1000PTS/1000EVS/1000 Trans.
Show less
Inlet Upper Engine Oil Cooler Hose Assembly for 1988-1995 GMC C1500
A-Premium®Part # APOCL121
Inlet Upper Engine Oil Cooler Hose Assembly for 1988-1995 GMC C1500
4.638 Reviews
$60.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits GMC C1500: 1988 1989 1990 1991 1992 1993 1994 1995
Check if this fits your vehicle
Item LocatedUnited States
Installation PositionInlet (Upper)
ColorNatural, Black
ConditionNew
item #1003ZYTQ
Note
This part is the inlet (Upper) line.
Show less
Outlet Transmission Oil Cooler Line Assembly for 2009-2019 Chevrolet Traverse
A-Premium®Part # APOCL184
Outlet Transmission Oil Cooler Line Assembly for 2009-2019 Chevrolet Traverse
4.638 Reviews
$46.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits Chevrolet Traverse: 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019
Check if this fits your vehicle
Item LocatedUnited States
Installation PositionOutlet
ColorNatural, Black
ConditionNew
item #1003ZRAX
Show less
Inlet Lower Engine Oil Cooler Hose Assembly for 1996-2000 Chevrolet C3500
A-Premium®Part # APOCL133
Inlet Lower Engine Oil Cooler Hose Assembly for 1996-2000 Chevrolet C3500
4.638 Reviews
$54.99
Low stock: Only 2 left
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits Chevrolet C3500: 1996 1997 1998 1999 2000
Check if this fits your vehicle
Item LocatedUnited States
Installation PositionInlet (Lower)
ColorNatural, Black
ConditionNew
item #1003ZLYR
Note
This part only fits vehicles with V8 7.4L engine.
Show less
Inlet Lower Engine Oil Cooler Hose Assembly for 1996-1999 Chevrolet C2500 Suburban
A-Premium®Part # APOCL133
Inlet Lower Engine Oil Cooler Hose Assembly for 1996-1999 Chevrolet C2500 Suburban
4.638 Reviews
$54.99
Low stock: Only 2 left
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits Chevrolet C2500 Suburban: 1996 1997 1998 1999
Check if this fits your vehicle
Item LocatedUnited States
Installation PositionInlet (Lower)
ColorNatural, Black
ConditionNew
item #1003ZH67
Note
This part only fits vehicles with V8 7.4L engine.
Show less
Lower Auto Trans Oil Cooler Line Assembly for 1997-2001 Jeep Cherokee
A-Premium®Part # APOCL101
Lower Auto Trans Oil Cooler Line Assembly for 1997-2001 Jeep Cherokee
4.638 Reviews
$29.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits Jeep Cherokee: 1997 1998 1999 2000 2001
Check if this fits your vehicle
Item LocatedUnited States
Installation PositionAuxiliary Cooler to Radiator (Lower)
ColorNatural, Black
ConditionNew
item #100401P9
Show less
2 Pcs Inlet & Outlet Transmission Oil Cooler Line Assembly for 2003-2005 Mercedes-Benz ML350
A-Premium®Part # APOCL165
2 Pcs Inlet & Outlet Transmission Oil Cooler Line Assembly for 2003-2005 Mercedes-Benz ML350
4.638 Reviews
$124.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits Mercedes-Benz ML350: 2003 2004 2005
Check if this fits your vehicle
Item LocatedUnited States
Installation PositionInlet & Outlet
ColorNatural
ConditionNew
item #1004CG1Y
Show less
Auto Trans Oil Cooler Line Assembly for 2005-2010 Dodge Dakota
A-Premium®Part # APOCL270
Auto Trans Oil Cooler Line Assembly for 2005-2010 Dodge Dakota
4.638 Reviews
$75.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits Dodge Dakota: 2005 2006 2007 2008 2009 2010
Check if this fits your vehicle
Item LocatedUnited States
ColorNatural, Black
ConditionNew
item #1003ZW82
Note
This item only fits the vehicle with 545RFE transmission(5 speed transmission), not 42RLE transmission(4 speed transmission).
Show less
Inlet Lower Engine Oil Cooler Hose Assembly for 1996-2000 GMC C2500
A-Premium®Part # APOCL133
Inlet Lower Engine Oil Cooler Hose Assembly for 1996-2000 GMC C2500
4.638 Reviews
$54.99
Low stock: Only 2 left
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits GMC C2500: 1996 1997 1998 1999 2000
Check if this fits your vehicle
Item LocatedUnited States
Installation PositionInlet (Lower)
ColorNatural, Black
ConditionNew
item #1003ZNN4
Note
This part only fits vehicles with V8 7.4L engine.
Show less
Page 24 of 125

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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Engine Oil Cooler Lines: What They Do & Leak Signs

Spot engine oil cooler line leaks early to prevent pressure loss. Learn to distinguish them from transmission or coolant hoses, confirm leak sources safely, and choose the correct A-Premium replacement with precise fitment guidance.

Oct 12, 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