1955 GMC M340 Transmission Seals
Keep Your 1955 GMC M340 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 1955 GMC M340 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Pinion Seals, Miscellaneous Automatic Transmission Seals, and Manual Transmission Output Shaft 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.
Competitive Prices and Extensive Inventory
The average price for a 1955 GMC M340 Transmission Seal at Advance Auto Parts is around $14.07, with a range that starts at $8.79 and goes up to $17.49. With 4 options in stock from one trusted brand, finding the right fit is easy. Popular picks like Multi-Purpose Seal, Multi-Purpose Seal, and Multi-Purpose Seal start at just $8.79 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 Manual Transmission Gaskets and Transmission Cooler and Parts. At Advance Auto Parts, we’re here to help you keep your 1955 GMC M340 in peak condition, inside and out.
Find Your Specific 1955 GMC M340 Transmission Seals
Looking for the perfect Transmission Seal for your 1955 GMC M340? 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 GMC M340. Whether you’re driving a 1955 model or another popular model year like
1956, 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 1955 GMC M340 Transmission Seals
National – Manual Transmission Output Shaft Seal (Part No.471341N)
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; 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.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
National – Multi-Purpose Seal (Part No.411330N)
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: 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.340797)
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
Popular 1955 GMC M340 Transmission Seals Categories
Most Popular Pinion Seal for 1955 GMC M340s
Enhance your 1955 GMC M340 with this popular Pinion Seal we have in stock, for $17.49.
National – Multi-Purpose Seal (Part No.411330N)
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: 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 1955 GMC M340 Miscellaneous Automatic Transmission Seal
Upgrade your M340 with our best-selling Miscellaneous Automatic Transmission Seal.
National – Multi-Purpose Seal (Part No.340797)
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
Top-Quality Manual Transmission Output Shaft Seals for 1955 GMC M340s
Choose a high-quality OEM or aftermarket Manual Transmission Output Shaft Seal for GMC M340s and enjoy top-notch performance from $13.49.
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
National – Manual Transmission Output Shaft Seal (Part No.471341N)
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; 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
FAQs for 1955 GMC M340 Transmission Seals
What are the best-selling Transmission Seals for 1955 GMC M340s?
Out of 4 Transmission Seals that fit 1955 GMC M340s, the following parts are the top sellers:
- Multi-Purpose Seal (3268632) – $17.49
- Multi-Purpose Seal (18444735) – $16.49
- Multi-Purpose Seal (18442968) – $8.79
What’s the price range for 1955 GMC M340 Transmission Seals?
The prices of Transmission Seals for the 1955 GMC M340 range from $8.79 up to $17.49 for the most premium parts.
What is the average price of a Transmission Seal for a 1955 GMC M340?
The average price for Transmission Seals for the 1955 GMC M340 is $14.07. 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.
What are the cheapest Transmission Seals for my 1955 GMC M340?
The cheapest 1955 GMC M340 Transmission Seals we carry are:
- Multi-Purpose Seal (18442968) – $8.79
- Manual Transmission Output Shaft Seal (18444122) – $13.49
- Multi-Purpose Seal (18444735) – $16.49
- Multi-Purpose Seal (3268632) – $17.49
Does Advance Auto Parts sell Transmission Seals for any other 1955 GMC models?
Yes. We stock Transmission Seals for 24 other popular 1955 GMC models. Some of the most popular are 1955 Truck Transmission Seals, 1955 100 Transmission Seals, 1955 150 Transmission Seals, 1955 250 Transmission Seals, and 1955 300 Transmission Seals.
What types of Transmission Seals do you sell for my 1955 GMC M340?
As of 3/1/26, these are some of the most in-demand types of Transmission Seals for a 1955 GMC M340:
Can I get help with 1955 GMC M340 Transmission Seal orders?
Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about GMC Transmission Seals and more.
What is your return policy for GMC M340 Transmission Seals?
Advance Auto Parts keeps returns simple. For new GMC M340 Transmission Seals and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.