1978 Cadillac Eldorado Transmission Seals
Keep Your 1978 Cadillac Eldorado in Top Shape with Quality Transmission Seals
Whether you’re repairing or upgrading your Transmission Seal, using high-quality parts is key to keeping your 1978 Cadillac Eldorado looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Extension Housing Seals, Automatic Transmission Selector Shaft Seals, and Transmission Seals and O-rings. 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.
Competitive Prices and Extensive Inventory
The average price for a 1978 Cadillac Eldorado Transmission Seal at Advance Auto Parts is around $8.62, with a range that starts at $3.99 and goes up to $11.29. With 4 options in stock from 3 trusted brands, finding the right fit is easy. Popular picks like Automatic Transmission Extension Housing Seal, Automatic Transmission Output Shaft Seal, and Shaft Seal start at just $3.99 and offer a great balance of form and function.
Explore Related Parts
While you’re upgrading or replacing your Transmission Seal, 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 1978 Cadillac Eldorado in peak condition, inside and out.
Find Your Specific 1978 Cadillac Eldorado Transmission Seals
Looking for the perfect Transmission Seal for your 1978 Cadillac Eldorado? You’re in the right place. Below, you’ll find links to various types of Transmission Seals that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Transmission Seals, ensuring durability and a precise fit for your Cadillac Eldorado. Whether you’re driving a 1978 model or another popular model year like
1994,
1995,
1996,
1997,
1998,
1999,
2000,
2001, and
2002, we’ve got you covered. Purchasing Transmission Seals 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 Seals that fit your vehicle.
Essential 1978 Cadillac Eldorado Transmission Seals
ATP – Automatic Transmission Extension Housing Seal (Part No.JO-57)
from
$9.59
ATP Transmission Seals And Gaskets are exact fit, no compromise replacement parts
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ATP – Automatic Transmission Extension Housing Seal (Part No.HO-8)
from
$14.29
ATP Transmission Seals and Gaskets are exact fit, no compromise replacement parts
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National – Multi-Purpose Seal (Part No.3543)
from
$9.99
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.
Product Features:
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Product Features:
- Design type: spring loaded; multi-lip
- Temperature range: -80 Deg. F to 350 Deg. F / -62 Deg. C to 176 Deg. C
- Good dry heat resistance
- Excellent low temperature capability
- Delivers quality and reliable performance for every type of repair
National – Multi-Purpose Seal (Part No.4950)
from
$6.99
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.
Product Features:
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Product Features:
- Design type: spring loaded; multi-lip
- Temperature range: -20 Deg. F to 300 Deg. F / -29 Deg. C to 49 Deg. C
- Resistance to EP lubricants
- Low swell in hydrocarbon fluids
- Delivers quality and reliable performance for every type of repair
National – Automatic Transmission Output Shaft Seal (Part No.470380V)
from
$11.29
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.
Product Features:
See More
Product Features:
- Design type: spring loaded; multi-lip
- Temperature range: -40 Deg. F to 400 Deg. F / -40 Deg. C to 204 Deg. C
- Excellent high temperature capabilities
- Compatible with wide range of fluids
- Delivers quality and reliable performance for every type of repair
National – Multi-Purpose Seal (Part No.7038SA)
from
$16.49
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.
Product Features:
See More
Product Features:
- Design type: spring loaded; multi-lip
- Temperature range: -40 Deg. F to 225 Deg. F / -40 Deg. C to 107 Deg. C
- Good low temperature capability
- Low swell in hydrocarbon fluids
- Delivers quality and reliable performance for every type of repair
Schaeffler – Shaft Seal (Part No.SS2569)
from
$3.99
Our wheel seals are engineered using only the highest-quality materials to meet vehicle manufacturer specificatons. We work with suppliers to design seals that meet FAG’s quality standards. Seals are designed to protect wheel end components from contamination – such as dirt, dust, and moisture – and prevent the loss of grease over the life of the bearing. The specifications for wheel seals are very demanding, and the type required depends on the specific application, position and vehicle class.
Product Features:
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Product Features:
- High-precision and High-quality components used in all KITs
- Coverage of classic and new high-tech solutions for the best system coverage
ATP – Automatic Transmission Selector Shaft Seal (Part No.SO-19)
from
$9.59
ATP Transmission Seals and Gaskets are exact fit, no compromise replacement parts
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Popular 1978 Cadillac Eldorado Transmission Seals Categories
Most Popular Extension Housing Seal for 1978 Cadillac Eldorados
Enhance your 1978 Cadillac Eldorado with this popular Extension Housing Seal we have in stock, for $9.59.
ATP – Automatic Transmission Extension Housing Seal (Part No.JO-57)
from
$9.59
ATP Transmission Seals And Gaskets are exact fit, no compromise replacement parts
See More
Best-Selling 1978 Cadillac Eldorado Automatic Transmission Selector Shaft Seal
Upgrade your Eldorado with our best-selling Automatic Transmission Selector Shaft Seal with a 5 Starts rating across 2 reviews.
ATP – Automatic Transmission Selector Shaft Seal (Part No.SO-19)
from
$9.59
ATP Transmission Seals and Gaskets are exact fit, no compromise replacement parts
See More
Top-Quality Transmission Seals and O-rings for 1978 Cadillac Eldorados
Choose a high-quality OEM or aftermarket Transmission Seals and O-ring for Cadillac Eldorados and enjoy top-notch performance from $11.29.
National – Automatic Transmission Output Shaft Seal (Part No.470380V)
from
$11.29
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.
Product Features:
See More
Product Features:
- Design type: spring loaded; multi-lip
- Temperature range: -40 Deg. F to 400 Deg. F / -40 Deg. C to 204 Deg. C
- Excellent high temperature capabilities
- Compatible with wide range of fluids
- Delivers quality and reliable performance for every type of repair
Our Top Pick for a 1978 Cadillac Eldorado Manual Transmission Seal
Invest in a
durable Manual Transmission Seal for your 1978 Cadillac, knowing you’re getting trusted brands and expert craftsmanship.
Schaeffler – Shaft Seal (Part No.SS2569)
from
$3.99
Our wheel seals are engineered using only the highest-quality materials to meet vehicle manufacturer specificatons. We work with suppliers to design seals that meet FAG’s quality standards. Seals are designed to protect wheel end components from contamination – such as dirt, dust, and moisture – and prevent the loss of grease over the life of the bearing. The specifications for wheel seals are very demanding, and the type required depends on the specific application, position and vehicle class.
Product Features:
See More
Product Features:
- High-precision and High-quality components used in all KITs
- Coverage of classic and new high-tech solutions for the best system coverage
FAQs for 1978 Cadillac Eldorado Transmission Seals
What are the best-selling Transmission Seals for 1978 Cadillac Eldorados?
Out of 4 Transmission Seals that fit 1978 Cadillac Eldorados, the following parts are the top sellers:
- Automatic Transmission Extension Housing Seal (11236101) – $9.59
- Automatic Transmission Output Shaft Seal (18444053) – $11.29
- Shaft Seal (50211164) – $3.99
What’s the price range for 1978 Cadillac Eldorado Transmission Seals?
The prices of Transmission Seals for the 1978 Cadillac Eldorado range from $3.99 up to $11.29 for the most premium parts.
What is the average price of a Transmission Seal for a 1978 Cadillac Eldorado?
The average price for Transmission Seals for the 1978 Cadillac Eldorado is $8.62. Keep in mind the variety of part types within our Transmission Seal 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 Seals for other Cadillac Eldorado model years?
What are the cheapest Transmission Seals for my 1978 Cadillac Eldorado?
The cheapest 1978 Cadillac Eldorado Transmission Seals we carry are:
- Shaft Seal (50211164) – $3.99
- Automatic Transmission Selector Shaft Seal (11236282) – $9.59
- Automatic Transmission Extension Housing Seal (11236101) – $9.59
- Automatic Transmission Output Shaft Seal (18444053) – $11.29
Does Advance Auto Parts sell Transmission Seals for any other 1978 Cadillac models?
Yes. We stock Transmission Seals for 3 other popular 1978 Cadillac models. Some of the most popular are 1978 DeVille Transmission Seals, 1978 Seville Transmission Seals, 1978 Fleetwood Transmission Seals, and 1978 Commercial Chassis Transmission Seals.
What are the top-rated Transmission Seals that fit the 1978 Cadillac Eldorado?
The one 1978 Cadillac Eldorado Transmission Seal we have in stock is the Shaft Seal. It costs $3.99.
What types of Transmission Seals do you sell for my 1978 Cadillac Eldorado?
As of 6/2/26, these are some of the most in-demand types of Transmission Seals for a 1978 Cadillac Eldorado:
Can I get help with 1978 Cadillac Eldorado Transmission Seal orders?
Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Cadillac Transmission Seals and more.
What is your return policy for Cadillac Eldorado Transmission Seals?
Advance Auto Parts keeps returns simple. For new Cadillac Eldorado Transmission Seals and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.