Best Automatic Transaxle Output Shaft Seals of 2026

Robert Reyes Avatar
Robert Reyes
Last Updated: Jan 10, 2026

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Automatic transaxle output shaft seals are an essential component of a vehicle's transmission system. These seals are designed to prevent transmission fluid from leaking out of the transmission and onto the ground. They are located at the point where the output shaft of the transmission exits the transmission housing and connects to the drive axle. Over time, these seals can wear out and begin to leak, causing transmission fluid to be lost and potentially damaging the transmission. It is important to replace worn or damaged output shaft seals as soon as possible to ensure the continued smooth operation of the vehicle's transmission system.

At a Glance: Our Top Picks

GM Genuine Parts Automatic Transmission Rear Output Shaft Seal Cover #TOP 1
GM Genuine Parts Automatic Transmission Rear Output Shaft Seal
ftb score rating icon 9.8
National Auto Trans Output Shaft Seal Cover #TOP 2
National Auto Trans Output Shaft Seal
ftb score rating icon 9.7
GM Genuine Parts Automatic Transmission Rear Output Shaft Seal Cover #TOP 3
GM Genuine Parts Automatic Transmission Rear Output Shaft Seal
ftb score rating icon 9.5

Top 10 Automatic Transaxle Output Shaft Seals

#TOP 1

GM Genuine Parts Automatic Transmission Rear Output Shaft Seal

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GM Genuine Parts Automatic Transmission Rear Output Shaft Seal Cover
GM Genuine Parts 24232325 Automatic Transmission Rear Output Shaft Seal

This automatic transmission rear output shaft seal is a recommended replacement part for your GM vehicle's original factory component. Manufactured to GM OE specification for fit, form, and function, it offers quality, reliability, and durability. It is perfect for those who want to maintain their GM vehicle and keep it running smoothly. The product is made in the USA.

What We Like
Durable and reliable
Manufactured to GM OE specification
Recommended replacement part for GM vehicles
#TOP 2

National Auto Trans Output Shaft Seal

National
710709
National Auto Trans Output Shaft Seal Cover
National 710709 Automatic Transmission Output Shaft Seal for Ford Escape

This automatic transaxle output shaft seal is designed with a spring-loaded and multi-lip design that provides good abrasion and dry running capability. It has superior thermal and chemical resistance with a temperature range of -30°F to 325°F / -34°C to 163°C. This output shaft seal delivers quality and reliable performance for every type of repair, ensuring that you get the best value for your money.

What We Like
Spring-loaded and multi-lip design
Superior thermal and chemical resistance
Good abrasion and dry running capability
#TOP 3

GM Genuine Parts Automatic Transmission Rear Output Shaft Seal

8677463
Stock
GM Genuine Parts Automatic Transmission Rear Output Shaft Seal Cover
GM Genuine Parts 8677463 (08677463) Propeller Shaft Front Slip Yoke Oil Seal

GM Genuine Parts is a leading manufacturer of high-quality products, including this Automatic Transmission Rear Output Shaft Seal. Their products are designed with the professional in mind and are internationally renowned for their diverse range of award-winning products. They are fully equipped with state-of-the-art technology and constantly modernizing their devices to meet the demands of the modern user. This specific product is designed to fit vehicles specifically and is categorized as Automatic Transaxle Output Shaft Seals.

What We Like
High-quality products
Designed with the professional in mind
Internationally renowned for diverse range of award-winning products
#TOP 4

GM Genuine Parts 8675517 Output Shaft Seal

GM Genuine Parts 8675517 Output Shaft Seal Cover
GM Genuine Parts 8675517 (08675517) Output Shaft Seal

GM Genuine Parts 8675517 Output Shaft Seal is a high-quality product designed with professionals in mind. As a leading manufacturer with international renown, GM has equipped this seal with state-of-the-art technology to meet the demands of the modern user. This vehicle-specific seal ensures a perfect fit and provides a reliable solution for your automatic transmission. With its durable design, you can trust GM Output Shaft Seal to keep your transmission running smoothly for years to come.

What We Like
Durable design
Vehicle-specific fit
Professional-grade quality
#TOP 5

GM Genuine Parts 8673526 Transmission Seal

8673526
Stock
GM Genuine Parts 8673526 Transmission Seal Cover
GM Genuine Parts 8673526 (08673526) Drive Shaft Front Slip Yoke Oil Seal

This automatic transmission rear output shaft seal is a GM-recommended replacement part for your vehicle's original factory component. It offers the same quality, reliability, and durability as GM OE. Manufactured to GM OE specification for fit, form, and function, this seal is designed to ensure a proper fit and prevent leaks.

What We Like
GM-recommended replacement part
Same quality, reliability, and durability as GM OE
Manufactured to GM OE specification for fit, form, and function
#TOP 6

GM Genuine Parts Automatic Transmission Turbine Shaft Rear Seal

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GM Genuine Parts Automatic Transmission Turbine Shaft Rear Seal Cover
GM Genuine Parts 24219390 Automatic Transmission Turbine Shaft Rear Seal

The GM Genuine Parts Automatic Transmission Turbine Shaft Rear Seal is a high-quality auto part designed to provide reliable performance. With its compact package dimensions of 1.6 L x 0.2 H x 1.6 W inches, this seal is easy to install and fits perfectly in your vehicle's transmission system. Made by GM, a trusted brand in the automotive industry, this seal ensures a secure and leak-free connection. Manufactured in Mexico, this seal meets the highest standards of quality and durability. The GM Genuine Parts Automatic Transmission Turbine Shaft Rear Seal, with its precise design and excellent sealing capabilities, is an essential component for maintaining the efficiency and longevity of your vehicle's transmission system.

What We Like
Reliable performance
Easy to install
Secure and leak-free connection
#TOP 7

GM Genuine Parts Automatic Transmission Turbine Shaft Seal

24212987
GM Genuine Parts Automatic Transmission Turbine Shaft Seal Cover
GM Genuine Parts 24212987 Automatic Transmission Turbine Shaft Seal

Replace the original factory component of your GM vehicle's automatic transaxle output shaft seal with GM Genuine Parts 24212987. This seal offers quality, reliability, and durability as it is manufactured to GM OE specifications for fit, form, and function. It is an ideal replacement part for your vehicle.

What We Like
High-quality replacement part
Reliable and durable
Manufactured to GM OE specification
#TOP 8

GM Genuine Parts Automatic Transmission Case Extension Output Shaft Seal

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GM Genuine Parts Automatic Transmission Case Extension Output Shaft Seal Cover
GM Genuine Parts 24233898 Automatic Transmission Case Extension Output Shaft Seal

This automatic transmission case extension output shaft seal is a recommended replacement part for your GM vehicle's original factory component. It is manufactured to GM OE specification for fit, form, and function. It offers quality, reliability, and durability. This seal is designed for automatic transaxle output shaft seals and is made in the United States.

What We Like
Manufactured to GM OE specification for fit, form, and function
Recommended replacement part for your GM vehicle's original factory component
Offers quality, reliability, and durability
#TOP 9

National Auto Trans Output Shaft Seal

National
710546
National Auto Trans Output Shaft Seal Cover
National 710546 Auto Trans Output Shaft Seal

The National Output Shaft Seal is a high-quality and reliable product designed for automatic transaxle output shaft seals. Its spring-loaded, multi-lip design ensures effective sealing and resistance to EP lubricants. With a temperature range of -20°F to 300°F, this seal performs well in various weather conditions. Additionally, it has low swell in hydrocarbon fluids, making it durable and long-lasting. Whether you need to repair your vehicle's transmission or replace a worn-out seal, the National Output Shaft Seal delivers the performance you can trust. It is a must-have for any automotive repair or maintenance project.

What We Like
High-quality and reliable
Effective sealing and resistance to EP lubricants
Wide temperature range for versatile performance
#TOP 10

Sixity Auto National Transmission Output Shaft Seal for Toyota Corolla 2009-2017 Left Side

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Sixity Auto National Transmission Output Shaft Seal for Toyota Corolla 2009-2017 Left Side Cover
National Left Transmission Output Shaft Seal compatible with Toyota Corolla 2009-2017

The Sixity Auto Output Shaft Seal is designed specifically for Toyota Corolla models from 2009 to 2017, ensuring a perfect fit for your vehicle’s left transmission side. Made from genuine National parts, this seal guarantees reliable quality and durability. It comes with original packaging and all necessary hardware, so you have everything needed for a smooth installation. As a direct replacement part, it fits seamlessly into your car without any modifications, saving you time and effort. Before purchasing, you can easily confirm if this part matches your vehicle using Amazon’s Confirmed Fit feature, giving you peace of mind with your purchase.

What We Like
Perfect fit for Toyota Corolla
Genuine National quality
Includes original packaging
Complete hardware included
Direct replacement part
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What are the symptoms of a bad transmission output shaft seal?

Signs of a bad transmission output shaft seal include stiffer gear changing, a grating sound in the lower part of the car, and unexpected connection and disconnection of the all-wheel drive. If you notice these symptoms, it may indicate damage to the output shaft seal.

2. How much does it cost to replace a transmission output seal?

The cost to replace a transmission output seal can vary. On average, it can range from around $150 to replace a seal to approximately $1,000 for a new torque converter. The cost will depend on factors such as the specific vehicle and the extent of the repair needed.

3. Can you drive with a leaking transmission seal?

While it may be technically possible to drive with a leaking transmission seal, it is not advisable. Continuing to drive with a leaking seal can lead to potential damage to your engine. It is recommended to address the issue and have the seal repaired as soon as possible.

4. Can you drive without a transmission seal?

Driving without a transmission seal is not recommended. A leaking transmission fluid can cause significant damage to your engine. It is important to have a functioning transmission seal to prevent fluid leaks and maintain the proper lubrication and operation of your transmission.

5. How do I know if my output shaft is bad?

While transmission output shafts typically last the life of a vehicle, they can occasionally fail. Common signs of a bad output shaft include odd vibrations while driving and unusual noises. This can be caused by bad bearings that cause the output shaft to wobble. If you suspect a problem with your output shaft, it is best to have it inspected by a professional.

6. Are transmission seals easy to replace?

Replacing transmission seals can vary in difficulty. While most seals are inexpensive, their location may require significant dismantling to access them. For example, gearbox oil seals often require the gearbox to be removed. It is generally recommended to have the task of replacing transmission seals done by a professional at a garage.

7. Should leaking seals be replaced or repaired?

Leaking seals should be replaced rather than repaired. Dry seals that have been in service for more than a year and show an increase in nitrogen consumption should have the seal cartridge replaced. When wet seals start to leak after running for a year or two, it is necessary to replace the cartridge to prevent further issues.

Editor's Notes

During our automatic transaxle output shaft seal research, we found 24 automatic transaxle output shaft seal products and shortlisted 10 quality products. We collected and analyzed 7,054 customer reviews through our big data system to write the automatic transaxle output shaft seals list. We found that most customers choose automatic transaxle output shaft seals with an average price of $13.11.

The automatic transaxle output shaft seals are available for purchase. We have researched hundreds of brands and picked the top brands of automatic transaxle output shaft seals, including GM GENUINE PARTS, National, Sixity Auto. The seller of top 1 product has received honest feedback from 384 consumers with an average rating of 4.7.

Written by
Robert Reyes Avatar

Robert Reyes is a dedicated writer from San Francisco with a bachelor of degree in mechanics and a bachelor of degree in marketing. He focuses on making some complicated topics simple and enjoys explaining complex and technical things in an easy-to-understand way.