1978 Mercury Zephyr Transmission Seals

Keep Your 1978 Mercury Zephyr 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 Mercury Zephyr 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, Automatic Transmission Oil Pump Seals, 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 $9.99 with an average 4.3 star rating. DriveWorks offer similar pricing and quality, backed by strong customer feedback. With over 360 reviews and a solid 4 star average, you can shop with confidence knowing other Mercury Zephyr owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1978 Mercury Zephyr Transmission Seal at Advance Auto Parts is around $35.67, with a range that starts at $2.99 and goes up to $159.99. With 11 options in stock from 4 trusted brands, finding the right fit is easy. Popular picks like AT CONTR SHAFT SEAL, Oil Seal, and AT DPSTK TUBE SEAL start at just $2.99 and offer a great balance of form and function.

Essential 1978 Mercury Zephyr Transmission Seals

Motive Gear – Pinion Seal (Part No.3604)

Pinion Seal

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)

Multi-Purpose Seal

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:
  • 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
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National – Multi-Purpose Seal (Part No.331107N)

Multi-Purpose Seal

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:
  • 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
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ATP – AT CONTR SHAFT SEAL (Part No.FO-15)

AT CONTR SHAFT SEAL

from

$6.99
AT CONTR SHAFT SEAL

Driveworks – Oil Seal (Part No.S-2655)

Oil Seal

from

$13.99
Value-priced seal meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
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Driveworks – Oil Seal (Part No.S-7692S)

Oil Seal

from

$4.99
Value-priced seal meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
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National – Multi-Purpose Seal (Part No.2655)

Multi-Purpose Seal

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:
  • 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
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ATP – AT EXT HOUSING SEAL (Part No.HO-9)

AT EXT HOUSING SEAL

from

$12.29
AT EXT HOUSING SEAL

National – Multi-Purpose Seal (Part No.7692S)

Multi-Purpose Seal

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:
  • 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
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ATP – AT DPSTK TUBE SEAL (Part No.SO-33)

AT DPSTK TUBE SEAL

from

$2.99
AT DPSTK TUBE SEAL

National – Multi-Purpose Seal (Part No.2443)

Multi-Purpose Seal

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:
  • 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
See More

National – Multi-Purpose Seal (Part No.240816)

Multi-Purpose Seal

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:
  • 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
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Most Popular Manual Transmission Output Shaft Seal for 1978 Mercury Zephyrs

Enhance your 1978 Mercury Zephyr with this popular Manual Transmission Output Shaft Seal we have in stock, for $4.99.

Driveworks – Oil Seal (Part No.S-7692S)

Oil Seal

from

$4.99
Value-priced seal meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
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Best-Selling 1978 Mercury Zephyr Automatic Transmission Oil Pump Seal

Upgrade your Zephyr with our best-selling Automatic Transmission Oil Pump Seal with a 4.5 Starts rating across 20 reviews.

National – Multi-Purpose Seal (Part No.331107N)

Multi-Purpose Seal

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:
  • 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
See More

Top-Quality Extension Housing Seals for 1978 Mercury Zephyrs

Choose a high-quality OEM or aftermarket Extension Housing Seal for Mercury Zephyrs and enjoy top-notch performance from $9.99.

National – Multi-Purpose Seal (Part No.7692S)

Multi-Purpose Seal

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:
  • 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
See More

ATP – AT EXT HOUSING SEAL (Part No.HO-9)

AT EXT HOUSING SEAL

from

$12.29
AT EXT HOUSING SEAL

Our Top Pick for a 1978 Mercury Zephyr Pinion Seal

Invest in a durable Pinion Seal for your 1978 Mercury, knowing you’re getting trusted brands and expert craftsmanship.

National – Multi-Purpose Seal (Part No.3604)

Multi-Purpose Seal

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:
  • 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
See More

Our Transmission Seals and O-rings for 1978 Mercury Zephyrs

Make a smart move for your 1978 Mercury Zephyr with our Transmission Seals and O-ring for $10.99.

National – Multi-Purpose Seal (Part No.2443)

Multi-Purpose Seal

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:
  • 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
See More

Top-Rated Transmission Seal Brands For Your 1978 Mercury Zephyr

When it comes to finding the perfect Transmission Seal for your 1978 Mercury Zephyr, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 4 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 1978 Mercury Zephyr, providing peace of mind with parts that meet or exceed OEM standards.

Popular National 1978 Mercury Zephyr Transmission Seals

If you’re looking for a top-quality Transmission Seal for your 1978 Mercury Zephyr, 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 $9.99 and an average cost of $11.76, you’ll find the perfect Transmission Seal for your needs and budget. National Transmission Seals for the 1978 Mercury Zephyr come highly rated, with over 51 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.
Multi-Purpose Seal
from $9.99
(3)
Multi-Purpose Seal
“Perfect part at a fair price”
Multi-Purpose Seal
from $13.29
(28)
Multi-Purpose Seal
“05 F150, 4.6L 4×4, 8.8 Rear End, Pinion Seal This was a high quality seal. It is easy to tap in because on the metal ring on the outside of the seal. ”
Multi-Purpose Seal
from $11.99
(20)
Multi-Purpose Seal
“worked great”

Top-Quality DriveWorks 1978 Mercury Zephyr Transmission Seals

For those in search of a high-quality Transmission Seal for their 1978 Mercury Zephyr, Advance Auto Parts offers a great selection of DriveWorks Transmission Seals. With 1 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, giving you a range of options to suit your budget. Backed by over 9 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.
Oil Seal
from $4.99
(9)
Oil Seal
“Good price works fine”

FAQs for 1978 Mercury Zephyr Transmission Seals

What are the best-selling Transmission Seals for 1978 Mercury Zephyrs?

Out of 11 Transmission Seals that fit 1978 Mercury Zephyrs, the following parts are the top sellers:

What’s the price range for 1978 Mercury Zephyr Transmission Seals?

The prices of Transmission Seals for the 1978 Mercury Zephyr range from $2.99 up to $159.99 for the most premium parts.

What is the average price of a Transmission Seal for a 1978 Mercury Zephyr?

The average price for Transmission Seals for the 1978 Mercury Zephyr is $35.67. 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 Zephyr model years?

Yes, we carry Transmission Seals for 4 model years of Mercury Zephyrs between 1979 and 1983. The following model years are the most popular for Transmission Seal purchases: 1983, 1982, 1981, 1980, and 1979.

What are the cheapest Transmission Seals for my 1978 Mercury Zephyr?

The cheapest 1978 Mercury Zephyr Transmission Seals we carry are:

Does Advance Auto Parts sell Transmission Seals for any other 1978 Mercury models?

Yes. We stock Transmission Seals for 4 other popular 1978 Mercury models. Some of the most popular are 1978 Cougar Transmission Seals, 1978 Grand Marquis Transmission Seals, 1978 Marquis Transmission Seals, 1978 Monarch Transmission Seals, and 1978 Bobcat Transmission Seals.

What are the top-rated Transmission Seals that fit the 1978 Mercury Zephyr?

Based on 360 reviews by customers, our 1978 Mercury Zephyr Transmission Seals have an average customer rating of 4 stars. These are the highest-rated categories of Transmission Seals for the 1978 Mercury Zephyr and their top-rated products:

What types of Transmission Seals do you sell for my 1978 Mercury Zephyr?

As of 11/2/25, these are some of the most in-demand types of Transmission Seals for a 1978 Mercury Zephyr:

Can I get help with 1978 Mercury Zephyr 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 Zephyr Transmission Seals?

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