2003 Cadillac Escalade ESV Transmission Connectors

Keep Your 2003 Cadillac Escalade ESV in Top Shape with Quality Transmission Connectors

Whether you’re repairing or upgrading your Transmission Connector, using high-quality parts is key to keeping your 2003 Cadillac Escalade ESV looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Automatic Transmission Line Connectors and Transmission Control Module Connectors. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Top-Rated Transmission Connectors from Trusted Brands

Looking for a reliable Transmission Connector? We’ve got you covered with options from brands you know and trust like Imperial and Dorman. For example, Imperial Transmission Connectors start at just $14.79 with an average 4.1 star rating. Dorman offer similar pricing and quality, backed by strong customer feedback. With over 33 reviews and a solid 5 star average, you can shop with confidence knowing other Cadillac Escalade ESV owners approve.

Explore Related Parts

While you’re upgrading or replacing your Transmission Connector, don’t forget to check out other key components like Torque Converter and Related Products and Transmission Cooler and Parts. At Advance Auto Parts, we’re here to help you keep your 2003 Cadillac Escalade ESV in peak condition, inside and out.

Essential 2003 Cadillac Escalade ESV Transmission Connectors

GM Genuine Parts – Multi-Purpose Pigtail (Part No.PT1626)

Multi-Purpose Pigtail

from

$65.99
ACDelco GM Original Equipment Pigtail Connectors are connectors ready to be spliced into vehicle harnesses, and are GM-recommended replacements for your vehicle’s original components. These original equipment pigtail connectors have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:
  • Protective outer coverings help provide long-lasting durability
  • Color-coded wires allow for easy installation
  • GM-recommended replacement part for your GM vehicle’s original factory component
  • Offering the quality, reliability, and durability of GM OE
  • Manufactured to GM OE specification for fit, form, and function
See More

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

Transmission Line Connector

from

$14.49
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
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

$12.99
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

Imperial – Transmission Line Fitting Kit (Part No.240390)

Transmission Line Fitting Kit

from

$14.79
Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.

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
  • 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
See More

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

Imperial – Transmission Fitting Kit (Part No.240397)

Transmission Fitting Kit

from

$27.49
Product Features:
  • Transmission line fitting kit
  • GM snap-in-style lines
  • 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
  • Precision machined
See More

Dorman – Transmission Fitting (Part No.800-727)

Transmission Fitting

from

$12.49
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
See More

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
See More

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

$7.99
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

Most Popular Automatic Transmission Line Connectors for 2003 Cadillac Escalade ESVs

Enhance your 2003 Cadillac Escalade ESV with one of the 7 Automatic Transmission Line Connectors we have in stock, starting at just $7.99.

Imperial – Transmission Fitting Kit (Part No.240397)

Transmission Fitting Kit

from

$27.49
Product Features:
  • Transmission line fitting kit
  • GM snap-in-style lines
  • 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
  • Precision machined
See More

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

$7.99
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

Imperial – Transmission Line Fitting Kit (Part No.240390)

Transmission Line Fitting Kit

from

$14.79
Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.

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
  • 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
See More

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 Fitting (Part No.800-727)

Transmission Fitting

from

$12.49
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
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

$12.99
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 (Part No.800-759)

Transmission Line Connector

from

$14.49
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
See More

Best-Selling 2003 Cadillac Escalade ESV Transmission Control Module Connector

Upgrade your Escalade ESV with our best-selling Transmission Control Module Connector.

GM Genuine Parts – Multi-Purpose Pigtail (Part No.PT1626)

Multi-Purpose Pigtail

from

$65.99
ACDelco GM Original Equipment Pigtail Connectors are connectors ready to be spliced into vehicle harnesses, and are GM-recommended replacements for your vehicle’s original components. These original equipment pigtail connectors have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:
  • Protective outer coverings help provide long-lasting durability
  • Color-coded wires allow for easy installation
  • GM-recommended replacement part for your GM vehicle’s original factory component
  • Offering the quality, reliability, and durability of GM OE
  • Manufactured to GM OE specification for fit, form, and function
See More

Top-Rated Transmission Connector Brands For Your 2003 Cadillac Escalade ESV

When it comes to finding the perfect Transmission Connector for your 2003 Cadillac Escalade ESV, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 3 trusted brands. We carry the most popular Transmission Connector brands including Dorman and Imperial, and more, all known for their exceptional customer ratings (average brand rating of 4.2 stars) and competitive prices, as low as $7.99. Purchasing a Transmission Connector from us here at Advance Auto Parts is a smart move for both you and your 2003 Cadillac Escalade ESV, providing peace of mind with parts that meet or exceed OEM standards.

Popular Dorman 2003 Cadillac Escalade ESV Transmission Connectors

If you’re looking for a top-quality Transmission Connector for your 2003 Cadillac Escalade ESV, Advance Auto Parts has exactly what you need with our selection of Dorman Transmission Connectors. We have 2 Dorman Transmission Connectors in stock for this fitment, all known for their durability and precision fit. With prices starting at just $7.99 and an average cost of $8.49, you’ll find the perfect Transmission Connector for your needs and budget. Dorman Transmission Connectors for the 2003 Cadillac Escalade ESV come highly rated, with over 25 customer reviews and an impressive average rating of 4.2 stars. Choosing a Dorman Transmission Connector from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
Transmission Line Connector with 3/8 Tube X 5/8-18 In. Thread
from $7.99
(16)
Transmission Line Connector with 3/8 Tube X 5/8-18 In. Thread
“Great product with great value”
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
“Fit perfectly in my 4L60”

Top-Quality Imperial 2003 Cadillac Escalade ESV Transmission Connectors

For those in search of a high-quality Transmission Connector for their 2003 Cadillac Escalade ESV, Advance Auto Parts offers a great selection of Imperial Transmission Connectors. With 2 Imperial Transmission Connectors in stock, you can trust you’re getting top-tier parts designed for durability and a perfect fit. Prices for these Transmission Connectors start at just $14.79, with an average price of $21.14, giving you a range of options to suit your budget. Backed by over 8 customer ratings and an average rating of 4.1 stars, Imperial Transmission Connectors provide both reliability and excellent performance. Choosing a Imperial Transmission Connector from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
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”
Transmission Fitting Kit
from $27.49
(2)
Transmission Fitting Kit
“Radiator quick connect for transcooler”

FAQs for 2003 Cadillac Escalade ESV Transmission Connectors

What are the best-selling Transmission Connectors for 2003 Cadillac Escalade ESVs?

Out of 8 Transmission Connectors that fit 2003 Cadillac Escalade ESVs, the following parts are the top sellers:

What’s the price range for 2003 Cadillac Escalade ESV Transmission Connectors?

The prices of Transmission Connectors for the 2003 Cadillac Escalade ESV range from $7.99 up to $65.99 for the most premium parts.

What is the average price of a Transmission Connector for a 2003 Cadillac Escalade ESV?

The average price for Transmission Connectors for the 2003 Cadillac Escalade ESV is $20.65. Keep in mind the variety of part types within our Transmission Connector category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Transmission Connectors for other Cadillac Escalade ESV model years?

Yes, we carry Transmission Connectors for 11 model years of Cadillac Escalade ESVs between 2004 and 2015. The following model years are the most popular for Transmission Connector purchases: 2015, 2014, 2013, 2012, 2011, 2010, 2009, 2008, and 2007.

What are the cheapest Transmission Connectors for my 2003 Cadillac Escalade ESV?

The cheapest 2003 Cadillac Escalade ESV Transmission Connectors we carry are:

Does Advance Auto Parts sell Transmission Connectors for any other 2003 Cadillac models?

Yes. We stock Transmission Connectors for 3 other popular 2003 Cadillac models. Some of the most popular are 2003 Escalade Transmission Connectors, 2003 Escalade EXT Transmission Connectors, 2003 DeVille Transmission Connectors, and 2003 Seville Transmission Connectors.

What are the top-rated Transmission Connectors that fit the 2003 Cadillac Escalade ESV?

The one 2003 Cadillac Escalade ESV Transmission Connector we have in stock is the Transmission Line Connector with 3/8 Tube X 5/8-18 In. Thread. It is rated 4.5 stars and costs $7.99.

What types of Transmission Connectors do you sell for my 2003 Cadillac Escalade ESV?

As of 11/2/25, these are some of the most in-demand types of Transmission Connectors for a 2003 Cadillac Escalade ESV:

Can I get help with 2003 Cadillac Escalade ESV Transmission Connector orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Cadillac Transmission Connectors and more.

What is your return policy for Cadillac Escalade ESV Transmission Connectors?

Advance Auto Parts keeps returns simple. For new Cadillac Escalade ESV Transmission Connectors and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.