Brands Vehicles
Lowest Prices
Free Returns
Online Since 2009
JOIN GEARS TO SAVE 5%
Shop All Brands Shop All Vehicles

  2. ACDelco 25999420

ACDelco 25999420 Transmission Oil Cooler Line

ACDelco 25999420 Transmission Oil Cooler Line Image 1
ACDelco 25999420 Transmission Oil Cooler Line Image 2
ACDelco 25999420 Transmission Oil Cooler Line Image 3
ACDelco 25999420 Transmission Oil Cooler Line

ACDelco
Brand:ACDelco
Part Number: 25999420
UPC: 00021625774961
Weight: 1.92 lbs
Condition:New



Availability:
0 in Stock

Product Information

Description:

Get the ACDelco 25999420 Transmission Oil Cooler Line for your vehicle. Buy now and secure your purchase online!

GM Genuine Parts Transmission Oil Cooler Lines are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE). ⚠ WARNING: Cancer and Reproductive Harm - https://www.P65Warnings.ca.gov

Features and Benefits:

  • GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
  • GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
  • GM regularly updates production and service part designs to integrate new materials and technologies
  • Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)

Specifications:

Contains Spring:
No
End 1 Inside Diameter (in):
0.320 in
End 1 Inside Diameter (mm):
8.130 mm
End 1 Type:
Quick Connect
End 2 Inside Diameter (in):
0.320 in
End 2 Inside Diameter (mm):
8.130 mm
End 2 Type:
Block Fitting
Fittings Included:
No
Height (in):
6.1 in
Hose Color:
Black
Hose Material:
Rubber
Hose Shape:
Molded Assembly
Length:
49 in.
Original Equipment Replacement:
Yes
Programming Required:
No
Weight (lb):
1.92 lb
Width (in):
31.5 in
Country of Origin:
CA

Select a vehicle to narrow ACDelco 25999420 Transmission Oil Cooler Line fitment info!

Last Updated: 03/01/2024

Years Vehicle Per Vehicle Position Fit NotesFitment Notes

2014

 

2014

 
Cadillac Escalade

6.2L V8 Flex OHV
1
 
Inlet and Outlet Assembly
 
HEAVY DUTY TRANS COOLING SYSTEM(KNP)
 

Cadillac Escalade



6.2L V8 Flex OHV

Inlet and Outlet Assembly HEAVY DUTY TRANS COOLING SYSTEM(KNP)

1 Per Vehicle

2013

 

2012

 

2013

 

2012

 
Cadillac Escalade

6.2L V8 Flex OHV
1
 
Inlet and Outlet Assembly
 
HEAVY DUTY TRANS COOLING SYSTEM(KNP)
Eng: L94
8th VIN Digit: F
Mfr Code: 6L80
 

Cadillac Escalade



6.2L V8 Flex OHV

Inlet and Outlet Assembly HEAVY DUTY TRANS COOLING SYSTEM(KNP)
Eng: L94
8th VIN Digit: F
Mfr Code: 6L80

1 Per Vehicle

2011

 

2010

 

2011

 

2010

 
Cadillac Escalade

6.2L V8 Flex OHV
1
 		 
HEAVY DUTY TRANS COOLING SYSTEM(KNP)
Eng: L94
8th VIN Digit: F
Mfr Code: 6L80
 

Cadillac Escalade



6.2L V8 Flex OHV HEAVY DUTY TRANS COOLING SYSTEM(KNP)
Eng: L94
8th VIN Digit: F
Mfr Code: 6L80

1 Per Vehicle

2009

 

2009

 
Cadillac Escalade

6.2L V8 Flex OHV
1
 		 
HEAVY DUTY TRANS COOLING SYSTEM(KNP)
Eng: L9H
8th VIN Digit: 2
Mfr Code: 6L80
 

Cadillac Escalade



6.2L V8 Flex OHV HEAVY DUTY TRANS COOLING SYSTEM(KNP)
Eng: L9H
8th VIN Digit: 2
Mfr Code: 6L80

1 Per Vehicle

2008

 

2007

 

2008

 

2007

 
Cadillac Escalade

6.2L V8 Gas OHV
1
 		  

Cadillac Escalade



6.2L V8 Gas OHV
1 Per Vehicle

2014

 

2013

 

2012

 

2014

 

2013

 

2012

 
Cadillac Escalade ESV

6.2L V8 Flex OHV
1
 
Inlet and Outlet Assembly
 
HEAVY DUTY TRANS COOLING SYSTEM(KNP)
 

Cadillac Escalade ESV



6.2L V8 Flex OHV

Inlet and Outlet Assembly HEAVY DUTY TRANS COOLING SYSTEM(KNP)

1 Per Vehicle

2011

 

2010

 

2009

 

2011

 

2010

 

2009

 
Cadillac Escalade ESV

6.2L V8 Flex OHV
1
 		 
HEAVY DUTY TRANS COOLING SYSTEM(KNP)
 

Cadillac Escalade ESV



6.2L V8 Flex OHV HEAVY DUTY TRANS COOLING SYSTEM(KNP)

1 Per Vehicle

2008

 

2007

 

2008

 

2007

 
Cadillac Escalade ESV

6.2L V8 Gas OHV
1
 		  

Cadillac Escalade ESV



6.2L V8 Gas OHV
1 Per Vehicle

2013

 

2012

 

2013

 

2012

 
Cadillac Escalade EXT

6.2L V8 Flex OHV
1
 
Inlet and Outlet Assembly
 
HEAVY DUTY TRANS COOLING SYSTEM(KNP)
 

Cadillac Escalade EXT



6.2L V8 Flex OHV

Inlet and Outlet Assembly HEAVY DUTY TRANS COOLING SYSTEM(KNP)

1 Per Vehicle

2011

 

2010

 

2009

 

2011

 

2010

 

2009

 
Cadillac Escalade EXT

6.2L V8 Flex OHV
1
 		 
HEAVY DUTY TRANS COOLING SYSTEM(KNP)
 

Cadillac Escalade EXT



6.2L V8 Flex OHV HEAVY DUTY TRANS COOLING SYSTEM(KNP)

1 Per Vehicle

2008

 

2007

 

2008

 

2007

 
Cadillac Escalade EXT

6.2L V8 Gas OHV
1
 		  

Cadillac Escalade EXT



6.2L V8 Gas OHV
1 Per Vehicle

2013

 

2012

 

2013

 

2012

 
Chevrolet Avalanche

5.3L V8 Flex OHV
1
 
Inlet and Outlet Assembly
 
HEAVY DUTY TRANS COOLING SYSTEM(KNP)
Eng: LC9
8th VIN Digit: 7
 

Chevrolet Avalanche



5.3L V8 Flex OHV

Inlet and Outlet Assembly HEAVY DUTY TRANS COOLING SYSTEM(KNP)
Eng: LC9
8th VIN Digit: 7

1 Per Vehicle

2013

 

2012

 

2013

 

2012

 
Chevrolet Avalanche

5.3L V8 Flex OHV
1
 
Inlet and Outlet Assembly
 
HEAVY DUTY TRANS COOLING SYSTEM(KNP)
Eng: LMG
8th VIN Digit: 0
 

Chevrolet Avalanche



5.3L V8 Flex OHV

Inlet and Outlet Assembly HEAVY DUTY TRANS COOLING SYSTEM(KNP)
Eng: LMG
8th VIN Digit: 0

1 Per Vehicle

2011

 

2010

 

2009

 

2011

 

2010

 

2009

 
Chevrolet Avalanche

5.3L V8 Flex OHV
1
 		 
HEAVY DUTY TRANS COOLING SYSTEM(KNP)
 

Chevrolet Avalanche



5.3L V8 Flex OHV HEAVY DUTY TRANS COOLING SYSTEM(KNP)

1 Per Vehicle

2009

 

2009

 
Chevrolet Avalanche

5.3L V8 Gas OHV,
6.0L V8 Gas OHV
1
 		 
HEAVY DUTY TRANS COOLING SYSTEM(KNP)
 

Chevrolet Avalanche



5.3L V8 Gas OHV,
6.0L V8 Gas OHV HEAVY DUTY TRANS COOLING SYSTEM(KNP)

1 Per Vehicle

2014

 

2014

 
Chevrolet Suburban 1500

5.3L V8 Flex OHV
1
 
Inlet and Outlet Assembly
 
HEAVY DUTY TRANS COOLING SYSTEM(KNP)
 

Chevrolet Suburban 1500



5.3L V8 Flex OHV

Inlet and Outlet Assembly HEAVY DUTY TRANS COOLING SYSTEM(KNP)

1 Per Vehicle

2013

 

2012

 

2013

 

2012

 
Chevrolet Suburban 1500

5.3L V8 Flex OHV
1
 
Inlet and Outlet Assembly
 
HEAVY DUTY TRANS COOLING SYSTEM(KNP)
Eng: LC9
8th VIN Digit: 7
 

Chevrolet Suburban 1500



5.3L V8 Flex OHV

Inlet and Outlet Assembly HEAVY DUTY TRANS COOLING SYSTEM(KNP)
Eng: LC9
8th VIN Digit: 7

1 Per Vehicle

2013

 

2012

 

2013

 

2012

 
Chevrolet Suburban 1500

5.3L V8 Flex OHV
1
 
Inlet and Outlet Assembly
 
HEAVY DUTY TRANS COOLING SYSTEM(KNP)
Eng: LMG
8th VIN Digit: 0
 

Chevrolet Suburban 1500



5.3L V8 Flex OHV

Inlet and Outlet Assembly HEAVY DUTY TRANS COOLING SYSTEM(KNP)
Eng: LMG
8th VIN Digit: 0

1 Per Vehicle

2011

 

2010

 

2009

 

2011

 

2010

 

2009

 
Chevrolet Suburban 1500

5.3L V8 Flex OHV
1
 		 
HEAVY DUTY TRANS COOLING SYSTEM(KNP)
 

Chevrolet Suburban 1500



5.3L V8 Flex OHV HEAVY DUTY TRANS COOLING SYSTEM(KNP)

1 Per Vehicle

2009

 

2009

 
Chevrolet Suburban 1500

5.3L V8 Gas OHV,
6.0L V8 Gas OHV
1
 		 
HEAVY DUTY TRANS COOLING SYSTEM(KNP)
 

Chevrolet Suburban 1500



5.3L V8 Gas OHV,
6.0L V8 Gas OHV HEAVY DUTY TRANS COOLING SYSTEM(KNP)

1 Per Vehicle

2014

 

2014

 
Chevrolet Tahoe

5.3L V8 Flex OHV
1
 
Inlet and Outlet Assembly
 
HEAVY DUTY TRANS COOLING SYSTEM(KNP)
 

Chevrolet Tahoe



5.3L V8 Flex OHV

Inlet and Outlet Assembly HEAVY DUTY TRANS COOLING SYSTEM(KNP)

1 Per Vehicle

2013

 

2012

 

2013

 

2012

 
Chevrolet Tahoe

5.3L V8 Flex OHV
1
 
Inlet and Outlet Assembly
 
HEAVY DUTY TRANS COOLING SYSTEM(KNP)
Eng: LMG
8th VIN Digit: 0
Mfr Code: 6L80
 

Chevrolet Tahoe



5.3L V8 Flex OHV

Inlet and Outlet Assembly HEAVY DUTY TRANS COOLING SYSTEM(KNP)
Eng: LMG
8th VIN Digit: 0
Mfr Code: 6L80

1 Per Vehicle

2011

 

2010

 

2009

 

2011

 

2010

 

2009

 
Chevrolet Tahoe

5.3L V8 Flex OHV
1
 		 
HEAVY DUTY TRANS COOLING SYSTEM(KNP)
Eng: LMG
8th VIN Digit: 0
Mfr Code: 6L80
 

Chevrolet Tahoe



5.3L V8 Flex OHV HEAVY DUTY TRANS COOLING SYSTEM(KNP)
Eng: LMG
8th VIN Digit: 0
Mfr Code: 6L80

1 Per Vehicle

2010

 

2009

 

2010

 

2009

 
Chevrolet Tahoe

5.3L V8 Flex OHV
1
 		 
HEAVY DUTY TRANS COOLING SYSTEM(KNP)
Eng: LC9
8th VIN Digit: 3
Mfr Code: 6L80
 

Chevrolet Tahoe



5.3L V8 Flex OHV HEAVY DUTY TRANS COOLING SYSTEM(KNP)
Eng: LC9
8th VIN Digit: 3
Mfr Code: 6L80

1 Per Vehicle

2009

 

2009

 
Chevrolet Tahoe

5.3L V8 Gas OHV
1
 		 
HEAVY DUTY TRANS COOLING SYSTEM(KNP)
Eng: LY5
8th VIN Digit: J
Mfr Code: 6L80
 

Chevrolet Tahoe



5.3L V8 Gas OHV HEAVY DUTY TRANS COOLING SYSTEM(KNP)
Eng: LY5
8th VIN Digit: J
Mfr Code: 6L80

1 Per Vehicle

2009

 

2009

 
Chevrolet Tahoe

6.2L V8 Flex OHV
1
 		 
HEAVY DUTY TRANS COOLING SYSTEM(KNP)
Eng: L9H
8th VIN Digit: 2
Mfr Code: 6L80
 

Chevrolet Tahoe



6.2L V8 Flex OHV HEAVY DUTY TRANS COOLING SYSTEM(KNP)
Eng: L9H
8th VIN Digit: 2
Mfr Code: 6L80

1 Per Vehicle

2014

 

2014

 
GMC Yukon

5.3L V8 Flex OHV,
6.2L V8 Flex OHV
1
 
Inlet and Outlet Assembly
 
HEAVY DUTY TRANS COOLING SYSTEM(KNP)
 

GMC Yukon



5.3L V8 Flex OHV,
6.2L V8 Flex OHV

Inlet and Outlet Assembly HEAVY DUTY TRANS COOLING SYSTEM(KNP)

1 Per Vehicle

2013

 

2012

 

2013

 

2012

 
GMC Yukon

5.3L V8 Flex OHV
1
 
Inlet and Outlet Assembly
 
HEAVY DUTY TRANS COOLING SYSTEM(KNP)
Eng: LMG
8th VIN Digit: 0
Mfr Code: 6L80
 

GMC Yukon



5.3L V8 Flex OHV

Inlet and Outlet Assembly HEAVY DUTY TRANS COOLING SYSTEM(KNP)
Eng: LMG
8th VIN Digit: 0
Mfr Code: 6L80

1 Per Vehicle

2013

 

2012

 

2013

 

2012

 
GMC Yukon

6.2L V8 Flex OHV
1
 
Inlet and Outlet Assembly
 
HEAVY DUTY TRANS COOLING SYSTEM(KNP)
Eng: L94
8th VIN Digit: F
Mfr Code: 6L80
 

GMC Yukon



6.2L V8 Flex OHV

Inlet and Outlet Assembly HEAVY DUTY TRANS COOLING SYSTEM(KNP)
Eng: L94
8th VIN Digit: F
Mfr Code: 6L80

1 Per Vehicle

2011

 

2010

 

2011

 

2010

 
GMC Yukon

6.2L V8 Flex OHV
1
 		 
HEAVY DUTY TRANS COOLING SYSTEM(KNP)
Eng: L94
8th VIN Digit: F
Mfr Code: 6L80
 

GMC Yukon



6.2L V8 Flex OHV HEAVY DUTY TRANS COOLING SYSTEM(KNP)
Eng: L94
8th VIN Digit: F
Mfr Code: 6L80

1 Per Vehicle

2011

 

2010

 

2009

 

2011

 

2010

 

2009

 
GMC Yukon

5.3L V8 Flex OHV
1
 		 
HEAVY DUTY TRANS COOLING SYSTEM(KNP)
Eng: LMG
8th VIN Digit: 0
Mfr Code: 6L80
 

GMC Yukon



5.3L V8 Flex OHV HEAVY DUTY TRANS COOLING SYSTEM(KNP)
Eng: LMG
8th VIN Digit: 0
Mfr Code: 6L80

1 Per Vehicle

2010

 

2009

 

2010

 

2009

 
GMC Yukon

5.3L V8 Flex OHV
1
 		 
HEAVY DUTY TRANS COOLING SYSTEM(KNP)
Eng: LC9
8th VIN Digit: 3
Mfr Code: 6L80
 

GMC Yukon



5.3L V8 Flex OHV HEAVY DUTY TRANS COOLING SYSTEM(KNP)
Eng: LC9
8th VIN Digit: 3
Mfr Code: 6L80

1 Per Vehicle

2009

 

2009

 
GMC Yukon

5.3L V8 Gas OHV
1
 		 
HEAVY DUTY TRANS COOLING SYSTEM(KNP)
Eng: LY5
8th VIN Digit: J
Mfr Code: 6L80
 

GMC Yukon



5.3L V8 Gas OHV HEAVY DUTY TRANS COOLING SYSTEM(KNP)
Eng: LY5
8th VIN Digit: J
Mfr Code: 6L80

1 Per Vehicle

2009

 

2009

 
GMC Yukon

6.2L V8 Flex OHV
1
 		 
HEAVY DUTY TRANS COOLING SYSTEM(KNP)
Eng: L9H
8th VIN Digit: 2
Mfr Code: 6L80
 

GMC Yukon



6.2L V8 Flex OHV HEAVY DUTY TRANS COOLING SYSTEM(KNP)
Eng: L9H
8th VIN Digit: 2
Mfr Code: 6L80

1 Per Vehicle

2008

 

2007

 

2008

 

2007

 
GMC Yukon

6.2L V8 Gas OHV
1
 		 
Eng: L92
8th VIN Digit: 8
Mfr Code: 6L80
 

GMC Yukon



6.2L V8 Gas OHV Eng: L92
8th VIN Digit: 8
Mfr Code: 6L80

1 Per Vehicle

2014

 

2014

 
GMC Yukon XL 1500

5.3L V8 Flex OHV,
6.2L V8 Flex OHV
1
 
Inlet and Outlet Assembly
 
HEAVY DUTY TRANS COOLING SYSTEM(KNP)
 

GMC Yukon XL 1500



5.3L V8 Flex OHV,
6.2L V8 Flex OHV

Inlet and Outlet Assembly HEAVY DUTY TRANS COOLING SYSTEM(KNP)

1 Per Vehicle

2013

 

2012

 

2013

 

2012

 
GMC Yukon XL 1500

5.3L V8 Flex OHV
1
 
Inlet and Outlet Assembly
 
HEAVY DUTY TRANS COOLING SYSTEM(KNP)
Eng: LC9
8th VIN Digit: 7
 

GMC Yukon XL 1500



5.3L V8 Flex OHV

Inlet and Outlet Assembly HEAVY DUTY TRANS COOLING SYSTEM(KNP)
Eng: LC9
8th VIN Digit: 7

1 Per Vehicle

2013

 

2012

 

2013

 

2012

 
GMC Yukon XL 1500

5.3L V8 Flex OHV
1
 
Inlet and Outlet Assembly
 
HEAVY DUTY TRANS COOLING SYSTEM(KNP)
Eng: LMG
8th VIN Digit: 0
 

GMC Yukon XL 1500



5.3L V8 Flex OHV

Inlet and Outlet Assembly HEAVY DUTY TRANS COOLING SYSTEM(KNP)
Eng: LMG
8th VIN Digit: 0

1 Per Vehicle

2013

 

2012

 

2013

 

2012

 
GMC Yukon XL 1500

6.2L V8 Flex OHV
1
 
Inlet and Outlet Assembly
 
HEAVY DUTY TRANS COOLING SYSTEM(KNP)
Eng: L94
8th VIN Digit: F
 

GMC Yukon XL 1500



6.2L V8 Flex OHV

Inlet and Outlet Assembly HEAVY DUTY TRANS COOLING SYSTEM(KNP)
Eng: L94
8th VIN Digit: F

1 Per Vehicle

2011

 

2010

 

2009

 

2011

 

2010

 

2009

 
GMC Yukon XL 1500

5.3L V8 Flex OHV,
6.2L V8 Flex OHV
1
 		 
HEAVY DUTY TRANS COOLING SYSTEM(KNP)
 

GMC Yukon XL 1500



5.3L V8 Flex OHV,
6.2L V8 Flex OHV HEAVY DUTY TRANS COOLING SYSTEM(KNP)

1 Per Vehicle

2009

 

2009

 
GMC Yukon XL 1500

5.3L V8 Gas OHV,
6.0L V8 Gas OHV
1
 		 
HEAVY DUTY TRANS COOLING SYSTEM(KNP)
 

GMC Yukon XL 1500



5.3L V8 Gas OHV,
6.0L V8 Gas OHV HEAVY DUTY TRANS COOLING SYSTEM(KNP)

1 Per Vehicle

2008

 

2007

 

2008

 

2007

 
GMC Yukon XL 1500

6.2L V8 Gas OHV
1
 		 
Eng: L92
8th VIN Digit: 8
Mfr Code: 6L80
 

GMC Yukon XL 1500



6.2L V8 Gas OHV Eng: L92
8th VIN Digit: 8
Mfr Code: 6L80

1 Per Vehicle