2003 Cadillac DeVille Transmission Connectors
Keep Your 2003 Cadillac DeVille 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 DeVille looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Automatic Transmission Line 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 78 reviews and a solid 4 star average, you can shop with confidence knowing other Cadillac DeVille owners approve.
Competitive Prices and Extensive Inventory
The average price for a 2003 Cadillac DeVille Transmission Connector at Advance Auto Parts is around $17.04, with a range that starts at $7.99 and goes up to $27.49. With 6 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like Transmission Fitting and Transmission Connector M18x1.5 start at just $13.99 and offer a great balance of form and function.
Explore Related Parts
While you’re upgrading or replacing your Transmission Connector, don’t forget to check out other key components like Automatic Transmission Parts and Transmission Cooler and Parts. At Advance Auto Parts, we’re here to help you keep your 2003 Cadillac DeVille in peak condition, inside and out.
Find Your Specific 2003 Cadillac DeVille Transmission Connectors
Looking for the perfect Transmission Connector for your 2003 Cadillac DeVille? You’re in the right place. Below, you’ll find links to various types of Transmission Connectors that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Transmission Connectors, ensuring durability and a precise fit for your Cadillac DeVille. Whether you’re driving a 2003 model or another popular model year like
1996,
1997,
1998,
1999,
2000,
2001,
2002,
2004, and
2005, we’ve got you covered. Purchasing Transmission Connectors from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Transmission Connectors that fit your vehicle.
Essential 2003 Cadillac DeVille Transmission Connectors
Dorman – Transmission Fitting (Part No.800-732)
from
$13.99
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:
See More
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
Imperial – Transmission Line Fitting Kit (Part No.240390)
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:
See More
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
Dorman – Transmission Connector M18x1.5 (Part No.800-721)
from
$21.99
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:
See More
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
Dorman – Transmission Line Connector (Part No.800-754)
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:
See More
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
Dorman – Transmission Line Connector (Part No.800-755)
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:
See More
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
Dorman – Transmission Fitting (Part No.800-735)
from
$16.99
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:
See More
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
Imperial – Transmission Fitting Kit (Part No.240397)
from
$27.49
Product Features:
See More
- 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
Dorman – Transmission Line Connector with 3/8 Tube X 5/8-18 In. Thread (Part No.800-605)
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:
See More
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
Dorman – Transmission Fitting (Part No.800-736)
from
$15.99
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:
See More
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
Popular 2003 Cadillac DeVille Transmission Connectors Categories
Most Popular Automatic Transmission Line Connectors for 2003 Cadillac DeVilles
Enhance your 2003 Cadillac DeVille with one of the 6 Automatic Transmission Line Connectors we have in stock, starting at just $7.99.
Imperial – Transmission Fitting Kit (Part No.240397)
from
$27.49
Product Features:
See More
- 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
Dorman – Transmission Line Connector with 3/8 Tube X 5/8-18 In. Thread (Part No.800-605)
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:
See More
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
Imperial – Transmission Line Fitting Kit (Part No.240390)
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:
See More
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
Dorman – Transmission Fitting (Part No.800-736)
from
$15.99
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:
See More
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
Dorman – Transmission Fitting (Part No.800-732)
from
$13.99
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:
See More
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
Dorman – Transmission Connector M18x1.5 (Part No.800-721)
from
$21.99
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:
See More
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
Top-Rated Transmission Connector Brands For Your 2003 Cadillac DeVille
When it comes to finding the perfect Transmission Connector for your 2003 Cadillac DeVille, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 2 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 DeVille, providing peace of mind with parts that meet or exceed OEM standards.
Popular Dorman 2003 Cadillac DeVille Transmission Connectors
If you’re looking for a top-quality Transmission Connector for your 2003 Cadillac DeVille, Advance Auto Parts has exactly what you need with our selection of Dorman Transmission Connectors. We have 1 Dorman Transmission Connectors in stock for this fitment, all known for their durability and precision fit. With prices starting at just $7.99, you’ll find the perfect Transmission Connector for your needs and budget. Dorman Transmission Connectors for the 2003 Cadillac DeVille come highly rated, with over 16 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.
from
$7.99
(16)
Transmission Line Connector with 3/8 Tube X 5/8-18 In. Thread
“Great product with great value”
Top-Quality Imperial 2003 Cadillac DeVille Transmission Connectors
For those in search of a high-quality Transmission Connector for their 2003 Cadillac DeVille, 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.
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”
FAQs for 2003 Cadillac DeVille Transmission Connectors
What are the best-selling Transmission Connectors for 2003 Cadillac DeVilles?
Out of 6 Transmission Connectors that fit 2003 Cadillac DeVilles, the following parts are the top sellers:
- Transmission Fitting (10974859) – $13.99
- Transmission Connector M18x1.5 (10599761) – $21.99
What’s the price range for 2003 Cadillac DeVille Transmission Connectors?
The prices of Transmission Connectors for the 2003 Cadillac DeVille range from $7.99 up to $27.49 for the most premium parts.
What is the average price of a Transmission Connector for a 2003 Cadillac DeVille?
The average price for Transmission Connectors for the 2003 Cadillac DeVille is $17.04. 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 DeVille model years?
What are the cheapest Transmission Connectors for my 2003 Cadillac DeVille?
The cheapest 2003 Cadillac DeVille Transmission Connectors we carry are:
- Transmission Line Connector with 3/8 Tube X 5/8-18 In. Thread (9110043) – $7.99
- Transmission Fitting (10974859) – $13.99
- Transmission Line Fitting Kit (3670010) – $14.79
- Transmission Fitting (10974860) – $15.99
- Transmission Connector M18x1.5 (10599761) – $21.99
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 ESV Transmission Connectors, 2003 Escalade EXT Transmission Connectors, and 2003 Seville Transmission Connectors.
What are the top-rated Transmission Connectors that fit the 2003 Cadillac DeVille?
The one 2003 Cadillac DeVille 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 DeVille?
We currently have just 1 Transmission Connector in stock for a 2003 Cadillac DeVille, and as of 11/2/25, it is an Automatic Transmission Line Connector.
Can I get help with 2003 Cadillac DeVille 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 DeVille Transmission Connectors?
Advance Auto Parts keeps returns simple. For new Cadillac DeVille Transmission Connectors and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.