1979 Mercury Cougar Transmission Seals
Keep Your 1979 Mercury Cougar 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 1979 Mercury Cougar looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Manual Transmission Output Shaft Seals, Transmission Seals and O-rings, and Extension Housing Seals. 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 Seals from Trusted Brands
Looking for a reliable Transmission Seal? We’ve got you covered with options from brands you know and trust like National and DriveWorks. For example, National Transmission Seals start at just $14.99 with an average 4.3 star rating. DriveWorks offer similar pricing and quality, backed by strong customer feedback. With over 204 reviews and a solid 5 star average, you can shop with confidence knowing other Mercury Cougar owners approve.
Competitive Prices and Extensive Inventory
The average price for a 1979 Mercury Cougar Transmission Seal at Advance Auto Parts is around $11.85, with a range that starts at $2.99 and goes up to $26.49. With 14 options in stock from 3 trusted brands, finding the right fit is easy. Popular picks like Oil Seal, AT CONTR SHAFT SEAL, and Oil Seal start at just $4.99 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 1979 Mercury Cougar in peak condition, inside and out.
Find Your Specific 1979 Mercury Cougar Transmission Seals
Looking for the perfect Transmission Seal for your 1979 Mercury Cougar? 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 Mercury Cougar. Whether you’re driving a 1979 model or another popular model year like
1993,
1994,
1995,
1996,
1997,
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 1979 Mercury Cougar Transmission Seals
National – Multi-Purpose Seal (Part No.7929S)
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; single-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
ATP – AT DPSTK TUBE SEAL (Part No.SO-33)
from
$2.99
AT DPSTK TUBE SEAL
Driveworks – Oil Seal (Part No.S-2655)
from
$13.99
Value-priced seal meets all cataloged application requirements.
Product Features:
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Product Features:
- Brand may vary by location
National – Multi-Purpose Seal (Part No.3622)
from
$22.99
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:
See More
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 – Manual Transmission Output Shaft Seal (Part No.710808)
from
$21.99
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:
See More
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 – Multi-Purpose Seal (Part No.7692S)
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:
See More
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 – Multi-Purpose Seal (Part No.2655)
from
$20.49
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: -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
ATP – AT EXT HOUSING SEAL (Part No.LO-42)
from
$12.99
AT EXT HOUSING SEAL
National – Multi-Purpose Seal (Part No.7044NA)
from
$14.99
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:
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
Motive Gear – Pinion Seal (Part No.3604)
from
$5.99
Motive Gear offers some of the toughest drive train components on the market today. If you are looking for the largest line of performance ring and pinion gear options available with gear sets in a wide range of ratios for nearly every application, both on and off-road, check out Motive Gear. Motive Gear products can be found in the winner’s circle at racing events worldwide. The superior quality of Motive Gear components is the result of years of racing development, outstanding design and state-of-the-art manufacturing methods. Extensive testing is performed on all products by our in-house engineers.
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National – Multi-Purpose Seal (Part No.3604)
from
$13.29
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.240816)
from
$8.79
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: springless; single-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
National – Manual Transmission Shift Shaft Seal (Part No.710970)
from
$13.49
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; single-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
National – Multi-Purpose Seal (Part No.331107N)
from
$11.99
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:
See More
Product Features:
- Design type: spring loaded; single-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
ATP – AT OIL PUMP SEAL (Part No.LO-29)
from
$20.99
AT OIL PUMP SEAL
National – Multi-Purpose Seal (Part No.3404)
from
$17.99
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:
See More
Product Features:
- Design type: spring loaded; single-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
ATP – AT CONTR SHAFT SEAL (Part No.FO-15)
from
$6.99
AT CONTR SHAFT SEAL
National – Multi-Purpose Seal (Part No.222742)
from
$14.99
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:
See More
Product Features:
- Design type: spring loaded; single-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.223012)
from
$14.79
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:
- Low swell in hydrocarbon fluids
- Design type: spring loaded; multi-lip
- Provides good low temperature capability
- Temperature range: -40°F to 225°F; -40°C to 107°C
- Delivers quality and reliable performance for every type of repair
National – Multi Purpose Seal (Part No.4765)
from
$13.29
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:
- Low swell in hydrocarbon fluids
- Design type: spring loaded; multi-lip
- Provides good low temperature capability
- Temperature range: -40°F to 225°F; -40°C to 107°C
- Delivers quality and reliable performance for every type of repair
National – Multi-Purpose Seal (Part No.2443)
from
$10.99
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:
See More
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 – Multi-Purpose Seal (Part No.470059)
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:
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
National – Automatic Transmission Extension Housing Seal Kit (Part No.5203)
from
$26.49
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
Popular 1979 Mercury Cougar Transmission Seals Categories
Most Popular Manual Transmission Output Shaft Seals for 1979 Mercury Cougars
Enhance your 1979 Mercury Cougar with one of the 2 Manual Transmission Output Shaft Seals we have in stock, starting at just $4.99.
National – Multi Purpose Seal (Part No.7300S)
from
$17.79
Product Features:
See More
- 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
Driveworks – Oil Seal (Part No.S-7692S)
from
$4.99
Value-priced seal meets all cataloged application requirements.
Product Features:
See More
Product Features:
- Brand may vary by location
Best-Selling 1979 Mercury Cougar Transmission Seals and O-ring
Upgrade your Cougar with our best-selling Transmission Seals and O-ring with a 5 Starts rating across 5 reviews.
National – Automatic Transmission Extension Housing Seal Kit (Part No.5203)
from
$26.49
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
Top-Quality Extension Housing Seals for 1979 Mercury Cougars
Choose a high-quality OEM or aftermarket Extension Housing Seal for Mercury Cougars and enjoy top-notch performance from $9.99.
Driveworks – Oil Seal (Part No.S-7300S)
from
$10.99
Value-priced seal meets all cataloged application requirements.
Product Features:
See More
Product Features:
- Brand may vary by location
National – Multi-Purpose Seal (Part No.7692S)
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:
See More
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
ATP – AT EXT HOUSING SEAL (Part No.HO-9)
from
$12.29
AT EXT HOUSING SEAL
ATP – AT EXT HOUSING SEAL (Part No.HO-8)
from
$13.29
AT EXT HOUSING SEAL
ATP – AT EXT HOUSING SEAL (Part No.FO-199)
from
$17.29
AT EXT HOUSING SEAL
Our Top Pick for a 1979 Mercury Cougar Automatic Transmission Oil Pump Seal
Invest in a
durable Automatic Transmission Oil Pump Seal for your 1979 Mercury, knowing you’re getting trusted brands and expert craftsmanship.
National – Multi-Purpose Seal (Part No.331107N)
from
$11.99
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:
See More
Product Features:
- Design type: spring loaded; single-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
Our Top-Rated Pinion Seals for 1979 Mercury Cougars
Make a smart move for your 1979 Mercury Cougar with our Pinion Seal for $14.99.
National – Multi-Purpose Seal (Part No.7044NA)
from
$14.99
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:
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
Top-Rated Transmission Seal Brands For Your 1979 Mercury Cougar
When it comes to finding the perfect Transmission Seal for your 1979 Mercury Cougar, 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 Seal brands including National and DriveWorks, and more, all known for their exceptional customer ratings (average brand rating of 4.3 stars) and competitive prices, as low as $4.99. Purchasing a Transmission Seal from us here at Advance Auto Parts is a smart move for both you and your 1979 Mercury Cougar, providing peace of mind with parts that meet or exceed OEM standards.
Popular National 1979 Mercury Cougar Transmission Seals
If you’re looking for a top-quality Transmission Seal for your 1979 Mercury Cougar, Advance Auto Parts has exactly what you need with our selection of National Transmission Seals. We have 3 National Transmission Seals in stock for this fitment, all known for their durability and precision fit. With prices starting at just $14.99 and an average cost of $19.76, you’ll find the perfect Transmission Seal for your needs and budget. National Transmission Seals for the 1979 Mercury Cougar come highly rated, with over 11 customer reviews and an impressive average rating of 4.3 stars. Choosing a National Transmission Seal from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
from
$17.79
(3)
Multi Purpose Seal
“Fit perfectly and stopped the leak. For anyone who needs to know, I used this seal for my Tremec TKO 600 transmission. This seal is a direct replaceme”
from
$26.49
(5)
Automatic Transmission Extension Housing Seal Kit
“This is the correct fit rear extension housing seal for my 1969 FMX transmission in my 1969 Mercury Cougar. Finding the seal with the bushing is a plu”
Top-Quality DriveWorks 1979 Mercury Cougar Transmission Seals
For those in search of a high-quality Transmission Seal for their 1979 Mercury Cougar, Advance Auto Parts offers a great selection of DriveWorks Transmission Seals. With 2 DriveWorks Transmission Seals in stock, you can trust you’re getting top-tier parts designed for durability and a perfect fit. Prices for these Transmission Seals start at just $4.99, with an average price of $7.99, giving you a range of options to suit your budget. Backed by over 17 customer ratings and an average rating of 4.3 stars, DriveWorks Transmission Seals provide both reliability and excellent performance. Choosing a DriveWorks Transmission Seal from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
FAQs for 1979 Mercury Cougar Transmission Seals
What are the best-selling Transmission Seals for 1979 Mercury Cougars?
Out of 14 Transmission Seals that fit 1979 Mercury Cougars, the following parts are the top sellers:
- Oil Seal (5440785) – $10.99
- AT CONTR SHAFT SEAL (11240381) – $6.99
- Oil Seal (5440602) – $4.99
What’s the price range for 1979 Mercury Cougar Transmission Seals?
The prices of Transmission Seals for the 1979 Mercury Cougar range from $2.99 up to $26.49 for the most premium parts.
What is the average price of a Transmission Seal for a 1979 Mercury Cougar?
The average price for Transmission Seals for the 1979 Mercury Cougar is $11.85. 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 Mercury Cougar model years?
What are the cheapest Transmission Seals for my 1979 Mercury Cougar?
The cheapest 1979 Mercury Cougar Transmission Seals we carry are:
- AT DPSTK TUBE SEAL (11236112) – $2.99
- Oil Seal (5440602) – $4.99
- AT CONTR SHAFT SEAL (11240381) – $6.99
- Multi-Purpose Seal (18444989) – $6.99
- Multi-Purpose Seal (18442794) – $8.79
Does Advance Auto Parts sell Transmission Seals for any other 1979 Mercury models?
Yes. We stock Transmission Seals for 5 other popular 1979 Mercury models. Some of the most popular are 1979 Grand Marquis Transmission Seals, 1979 Capri Transmission Seals, 1979 Zephyr Transmission Seals, 1979 Marquis Transmission Seals, and 1979 Monarch Transmission Seals.
What are the top-rated Transmission Seals that fit the 1979 Mercury Cougar?
Based on 204 reviews by customers, our 1979 Mercury Cougar Transmission Seals have an average customer rating of 5 stars. These are the highest-rated categories of Transmission Seals for the 1979 Mercury Cougar and their top-rated products:
- Pinion Seals
- Multi-Purpose Seal (3270866) – $14.99
- Automatic Transmission Oil Pump Seals
- Multi-Purpose Seal (3267881) – $11.99
What types of Transmission Seals do you sell for my 1979 Mercury Cougar?
As of 11/2/25, these are some of the most in-demand types of Transmission Seals for a 1979 Mercury Cougar:
Can I get help with 1979 Mercury Cougar Transmission Seal orders?
Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Mercury Transmission Seals and more.
What is your return policy for Mercury Cougar Transmission Seals?
Advance Auto Parts keeps returns simple. For new Mercury Cougar Transmission Seals and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.