2001 GMC Sierra 2500 HD Automatic Transmission Line Connectors

Your 2001 GMC Sierra 2500 HD might be the best vehicle you’ve ever owned. Or you may just be struggling to keep it highway-approved. No matter the situation, Advance Auto Parts has the Automatic Transmission Line Connectors you desperately need.

We currently carry 8 Automatic Transmission Line Connectors to choose from for your 2001 GMC Sierra 2500 HD, and our inventory prices range from as little as $6.49 up to $61.99.

On top of low prices, Advance Auto Parts offers 2 different trusted brands of Automatic Transmission Line Connectors for the 2001 GMC Sierra 2500 HD. We only sell parts from trusted brands like Dorman so that you can find quality parts you can count on.

Don’t take our word for it – check out customer ratings and reviews to buy with confidence. We have 309 reviews on our Automatic Transmission Line Connectors for the 2001 GMC Sierra 2500 HD from previous customers.

Have parts delivered straight to your home, or find the nearest Advance Auto Parts store to check out our Automatic Transmission Line Connectors stock in-person!

Automatic Transmission Line Connectors for Your 2001 GMC Sierra 2500 HD

Dorman – Transmission Line Connector – 3/8 in OD Tube x 9/16-18 UNF Thread (Part No.800-619)

Transmission Line Connector - 3/8 in OD Tube x 9/16-18 UNF Thread

from

$8.99
Made of quality materials, this automatic transmission oil cooler line connector matches the fit and function of a damaged original equipment connector to restore leak-free performance between the transmission and the oil cooler.

Product Features:
  • Quality replacement – this transmission cooler connector matches the fit and function of the original equipment connector
  • Durable construction – this oil cooler line connector is made of quality materials for a precise fit and leak-free durability
  • Performance tested – this connector has been rigorously pressure tested to ensure reliable performance
  • Ideal shop supply – this connector is recommended to have on hand any time service is being performed on the transmission oil cooler line
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Dorman – Transmission Line Quick Connector (Part No.800-726)

Transmission Line Quick Connector

from

$37.49
Made of quality materials, this automatic transmission oil cooler line connector matches the fit and function of a damaged original equipment connector to restore leak-free performance between the transmission and the oil cooler.

Product Features:
  • Quality replacement – this transmission cooler connector matches the fit and function of the original equipment connector
  • Durable construction – this oil cooler line connector is made of quality materials for a precise fit and leak-free durability
  • Performance tested – this connector has been rigorously pressure tested to ensure reliable performance
  • Ideal shop supply – this connector is recommended to have on hand any time service is being performed on the transmission oil cooler line
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Dorman – Transmission Line Connector With 3/8 Tube X 5/8-18 In. Thread (Part No.800-605)

Transmission Line Connector With 3/8 Tube X 5/8-18 In. Thread

from

$6.49
Made of quality materials, this automatic transmission oil cooler line connector matches the fit and function of a damaged original equipment connector to restore leak-free performance between the transmission and the oil cooler.

Product Features:
  • Quality replacement – this transmission cooler connector matches the fit and function of the original equipment connector
  • Durable construction – this oil cooler line connector is made of quality materials for a precise fit and leak-free durability
  • Performance tested – this connector has been rigorously pressure tested to ensure reliable performance
  • Ideal shop supply – this connector is recommended to have on hand any time service is being performed on the transmission oil cooler line
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Imperial – Transmission Line Fitting Kit (Part No.240390)

Transmission Line Fitting Kit

from

$14.79
Product Features:
  • Transmission line fitting kit
  • GM, Jeep; 5/8″-18 inverted flare
  • Helps simplify transmission cooler installation
  • Allows for auxiliary transmission cooler installation without cutting OE lines
  • Crafted from high-quality material that makes it durable and longer-lasting
  • A high quality, direct fit OE replacement
  • Easily connects the transmission cooler line to the cooler hose
  • Coated for extra protection against corrosion
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Dorman – Transmission Line Connector With 3/8 Tube X 1/4-18 In. Thread (Part No.800-604)

Transmission Line Connector With 3/8 Tube X 1/4-18 In. Thread

from

$8.99
Made of quality materials, this automatic transmission oil cooler line connector matches the fit and function of a damaged original equipment connector to restore leak-free performance between the transmission and the oil cooler.

Product Features:
  • Quality replacement – this transmission cooler connector matches the fit and function of the original equipment connector
  • Durable construction – this oil cooler line connector is made of quality materials for a precise fit and leak-free durability
  • Performance tested – this connector has been rigorously pressure tested to ensure reliable performance
  • Ideal shop supply – this connector is recommended to have on hand any time service is being performed on the transmission oil cooler line
See More

Dorman – Transmission Line Connector With 3/8 Tube X 3/8-18In. Thread (Part No.800-606)

Transmission Line Connector With 3/8 Tube X 3/8-18In. Thread

from

$12.29
Made of quality materials, this automatic transmission oil cooler line connector matches the fit and function of a damaged original equipment connector to restore leak-free performance between the transmission and the oil cooler.

Product Features:
  • Quality replacement – this transmission cooler connector matches the fit and function of the original equipment connector
  • Durable construction – this oil cooler line connector is made of quality materials for a precise fit and leak-free durability
  • Performance tested – this connector has been rigorously pressure tested to ensure reliable performance
  • Ideal shop supply – this connector is recommended to have on hand any time service is being performed on the transmission oil cooler line
See More

Dorman – Transmission Line Connector (Part No.800-759)

Transmission Line Connector

from

$13.79
Made of quality materials, this automatic transmission oil cooler line connector matches the fit and function of a damaged original equipment connector to restore leak-free performance between the transmission and the oil cooler.

Product Features:
  • Quality replacement – this transmission cooler connector matches the fit and function of the original equipment connector
  • Durable construction – this oil cooler line connector is made of quality materials for a precise fit and leak-free durability
  • Performance tested – this connector has been rigorously pressure tested to ensure reliable performance
  • Ideal shop supply – this connector is recommended to have on hand any time service is being performed on the transmission oil cooler line
See More

Imperial – Oil Cooler Acc (Part No.240380)

Oil Cooler Acc

from

$61.99
Oil Cooler Acc

FAQs for 2001 GMC Sierra 2500 HD Automatic Transmission Line Connectors

What are the most popular Automatic Transmission Line Connectors for the 2001 GMC Sierra 2500 HD?

With 2 brands you can trust, our most popular Automatic Transmission Line Connectors for the 2001 GMC Sierra 2500 HD parts are:
Transmission Line Connector With 3/8 Tube X 5/8-18 In. Thread
from $6.49
(16)
Transmission Line Connector With 3/8 Tube X 5/8-18 In. Thread
Automatic Transmission Line Connectors
Transmission Line Connector With 3/8 Tube X 1/4-18 In. Thread
from $8.99
(9)
Transmission Line Connector With 3/8 Tube X 1/4-18 In. Thread
Automatic Transmission Line Connectors
Transmission Line Connector - 3/8 in OD Tube x 9/16-18 UNF Thread
from $8.99
(5)
Transmission Line Connector – 3/8 in OD Tube x 9/16-18 UNF Thread
Automatic Transmission Line Connectors

What are the best aftermarket Automatic Transmission Line Connectors for the 2001 GMC Sierra 2500 HD?

See what past customers had to say about our highest-rated Automatic Transmission Line Connectors for the 2001 GMC Sierra 2500 HD:
Transmission Line Fitting Kit
from $14.79
(6)
Transmission Line Fitting Kit
“I used this adapter to connect it to the upper left tranny tranny port on the radiator of my 97 eldorado. I dropped the tranny/drained/filled it. Then”