1999 Mercury Mountaineer Transmission Seals
Keep Your 1999 Mercury Mountaineer 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 1999 Mercury Mountaineer looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Automatic Transmission Output Shaft Seals, Pinion 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 $13.29 with an average 4.3 star rating. DriveWorks offer similar pricing and quality, backed by strong customer feedback. With over 106 reviews and a solid 3 star average, you can shop with confidence knowing other Mercury Mountaineer owners approve.
Competitive Prices and Extensive Inventory
The average price for a 1999 Mercury Mountaineer Transmission Seal at Advance Auto Parts is around $13.76, with a range that starts at $6.99 and goes up to $20.99. With 13 options in stock from 3 trusted brands, finding the right fit is easy. Popular picks like AT CONTR SHAFT SEAL, Multi Purpose Seal, and Multi-Purpose Seal start at just $6.99 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 1999 Mercury Mountaineer in peak condition, inside and out.
Find Your Specific 1999 Mercury Mountaineer Transmission Seals
Looking for the perfect Transmission Seal for your 1999 Mercury Mountaineer? 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 Mountaineer. Whether you’re driving a 1999 model or another popular model year like
2002,
2003,
2004,
2005,
2006,
2007,
2008,
2009, and
2010, 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 1999 Mercury Mountaineer Transmission Seals
National – Multi-Purpose Seal (Part No.714675)
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: -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.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
Driveworks – Oil Seal (Part No.S-2655)
from
$13.99
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.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:
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 – Automatic Transmission Extension Housing Seal (Part No.710487)
from
$19.29
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
ATP – AT EXT HOUSING SEAL (Part No.LO-42)
from
$12.99
AT EXT HOUSING SEAL
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
National – Automatic Transmission Extension Housing Seal (Part No.710486)
from
$19.99
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 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
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
National – Multi-Purpose Seal (Part No.710535)
from
$7.99
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.4764)
from
$12.99
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 – Automatic Transmission Output Shaft Seal (Part No.710671)
from
$17.49
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: springless; 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.330385)
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:
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.710690)
from
$4.99
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:
- 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
ATP – AT CONTR SHAFT SEAL (Part No.FO-15)
from
$6.99
AT CONTR SHAFT SEAL
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.710780)
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
Popular 1999 Mercury Mountaineer Transmission Seals Categories
Most Popular Automatic Transmission Output Shaft Seal for 1999 Mercury Mountaineers
Enhance your 1999 Mercury Mountaineer with this popular Automatic Transmission Output Shaft Seal we have in stock, for $12.99.
National – Multi-Purpose Seal (Part No.4764)
from
$12.99
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
Best-Selling 1999 Mercury Mountaineer Pinion Seals
Upgrade your Mountaineer with one of our 2 best-selling Pinion Seals, earning an average 3.75 stars rating across 37 reviews.
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.714675)
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: -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
Top-Quality Extension Housing Seals for 1999 Mercury Mountaineers
Choose a high-quality OEM or aftermarket Extension Housing Seal for Mercury Mountaineers and enjoy top-notch performance from $12.99.
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
Our Top Pick for a 1999 Mercury Mountaineer Transmission Seals and O-ring
Invest in a
durable Transmission Seals and O-ring for your 1999 Mercury, knowing you’re getting trusted brands and expert craftsmanship.
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
Our Top-Rated Manual Transmission Output Shaft Seals for 1999 Mercury Mountaineers
Make a smart move for your 1999 Mercury Mountaineer with our Manual Transmission Output Shaft Seal for $13.99.
Driveworks – Oil Seal (Part No.S-2655)
from
$13.99
Value-priced seal meets all cataloged application requirements.
Product Features:
See More
Product Features:
- Brand may vary by location
Top-Rated Transmission Seal Brands For Your 1999 Mercury Mountaineer
When it comes to finding the perfect Transmission Seal for your 1999 Mercury Mountaineer, 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 $13.29. Purchasing a Transmission Seal from us here at Advance Auto Parts is a smart move for both you and your 1999 Mercury Mountaineer, providing peace of mind with parts that meet or exceed OEM standards.
Popular National 1999 Mercury Mountaineer Transmission Seals
If you’re looking for a top-quality Transmission Seal for your 1999 Mercury Mountaineer, Advance Auto Parts has exactly what you need with our selection of National Transmission Seals. We have 2 National Transmission Seals in stock for this fitment, all known for their durability and precision fit. With prices starting at just $13.29, you’ll find the perfect Transmission Seal for your needs and budget. National Transmission Seals for the 1999 Mercury Mountaineer come highly rated, with over 33 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
$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.
”
Top-Quality DriveWorks 1999 Mercury Mountaineer Transmission Seals
For those in search of a high-quality Transmission Seal for their 1999 Mercury Mountaineer, 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 $13.99, giving you a range of options to suit your budget. Backed by over 2 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 1999 Mercury Mountaineer Transmission Seals
What are the best-selling Transmission Seals for 1999 Mercury Mountaineers?
Out of 13 Transmission Seals that fit 1999 Mercury Mountaineers, the following parts are the top sellers:
- AT CONTR SHAFT SEAL (11240381) – $6.99
- Multi Purpose Seal (18444423) – $13.29
- Multi-Purpose Seal (18444420) – $12.99
What’s the price range for 1999 Mercury Mountaineer Transmission Seals?
The prices of Transmission Seals for the 1999 Mercury Mountaineer range from $6.99 up to $20.99 for the most premium parts.
What is the average price of a Transmission Seal for a 1999 Mercury Mountaineer?
The average price for Transmission Seals for the 1999 Mercury Mountaineer is $13.76. 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 Mountaineer model years?
What are the cheapest Transmission Seals for my 1999 Mercury Mountaineer?
The cheapest 1999 Mercury Mountaineer Transmission Seals we carry are:
- AT CONTR SHAFT SEAL (11240381) – $6.99
- Multi-Purpose Seal (18444989) – $6.99
- Multi-Purpose Seal (18442932) – $6.99
- Multi-Purpose Seal (20441885) – $7.99
- Multi-Purpose Seal (18444420) – $12.99
Does Advance Auto Parts sell Transmission Seals for any other 1999 Mercury models?
Yes. We stock Transmission Seals for 5 other popular 1999 Mercury models. Some of the most popular are 1999 Cougar Transmission Seals, 1999 Grand Marquis Transmission Seals, 1999 Villager Transmission Seals, 1999 Sable Transmission Seals, and 1999 Tracer Transmission Seals.
What are the top-rated Transmission Seals that fit the 1999 Mercury Mountaineer?
Based on 106 reviews by customers, our 1999 Mercury Mountaineer Transmission Seals have an average customer rating of 3 stars. These are the highest-rated categories of Transmission Seals for the 1999 Mercury Mountaineer and their top-rated products:
- Automatic Transmission Oil Pump Seals
- Multi-Purpose Seal (18442960) – $17.99
- Pinion Seals
- Multi-Purpose Seal (3268012) – $13.29
- Multi-Purpose Seal (18444940) – $20.49
- Transmission Seals and O-rings
- Multi Purpose Seal (18444423) – $13.29
What types of Transmission Seals do you sell for my 1999 Mercury Mountaineer?
As of 11/2/25, these are some of the most in-demand types of Transmission Seals for a 1999 Mercury Mountaineer:
Can I get help with 1999 Mercury Mountaineer 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 Mountaineer Transmission Seals?
Advance Auto Parts keeps returns simple. For new Mercury Mountaineer Transmission Seals and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.