Best Automatic Transaxle Pump Seals of 2026

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

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Automatic transaxle pump seals are essential components in the efficient functioning of vehicles with automatic transmissions. These seals are designed to prevent the leakage of transmission fluid, which can lead to reduced performance and even damage to the transmission system. The seals are made of high-quality materials that are resistant to wear and tear, ensuring long-lasting performance. They are easy to install and are available in various sizes and specifications to fit different types of vehicles. With automatic transaxle pump seals, drivers can enjoy smooth and reliable performance from their vehicles for years to come.

At a Glance: Our Top Picks

RKX 2.5L Vacuum Pump Reseal Kit for VW and Audi Engines Cover #TOP 1
RKX 2.5L Vacuum Pump Reseal Kit for VW and Audi Engines
ftb score rating icon 9.9
RKX Vacuum Pump Rebuild Seal Kit for Ford Lincoln 3.5L EcoBoost Cover #TOP 2
RKX Vacuum Pump Rebuild Seal Kit for Ford Lincoln 3.5L EcoBoost
ftb score rating icon 9.8
AUTOKAY Vacuum Pump Seal for VW & Audi Cover #TOP 3
AUTOKAY Vacuum Pump Seal for VW & Audi
ftb score rating icon 9.6

Top 10 Automatic Transaxle Pump Seals

#TOP 1

RKX 2.5L Vacuum Pump Reseal Kit for VW and Audi Engines

RKX
RKX-2.5l-vac-pump-kit
RKX 2.5L Vacuum Pump Reseal Kit for VW and Audi Engines Cover
RKX 2.5L VACUUM PUMP REBUILD/SEAL KIT replacement for Volkswagen VW 2.5 L Jetta, Beetle, Passat, Rabbit, Golf

The RKX PREMIUM vacuum pump reseal kit is designed to rebuild the 2.5L vacuum pump and stop it from leaking oil in Volkswagen Jetta, Beetle, New Beetle, Golf, Rabbit, Passat, and Audi TT RS. It includes all necessary gaskets and custom injection molded seals made from military grade Fluorocarbon (Viton) that can withstand extreme engine conditions. The kit features double lip technology (DLT) for the ultimate seal. RKX offers a limited lifetime warranty on all gaskets included, and the kit is cost-effective and easy to use.

What We Like
Cost-effective and easy to use
Custom injection molded seals made from military grade Fluorocarbon (Viton)
Features double lip technology (DLT) for the ultimate seal
#TOP 2

RKX Vacuum Pump Rebuild Seal Kit for Ford Lincoln 3.5L EcoBoost

RKX
RKX-VPK-027
RKX Vacuum Pump Rebuild Seal Kit for Ford Lincoln 3.5L EcoBoost Cover
RKX Vacuum Pump Rebuild Seal Kit Compatible with Ford Lincoln 3.5L EcoBoost DL3Z2A572A

The RKX Vacuum Pump Seal Kit is designed to help you fix leaks in your Ford or Lincoln 3.5L EcoBoost engine's vacuum pump from 2015 to 2021. This kit includes all the gaskets you need to rebuild the pump, saving you from buying a whole new one, which dealers usually recommend. The seals are made from high-quality military-grade Fluorocarbon (Viton), ensuring they last even under tough engine conditions. Plus, the kit fits several original pump models, making it a reliable choice for your vehicle maintenance needs.

What We Like
Complete gasket set
Military-grade Viton seals
Compatible with multiple OEM pumps
Cost-saving rebuild option
#TOP 3

AUTOKAY Vacuum Pump Seal for VW & Audi

07K 145 100B
AUTOKAY Vacuum Pump Seal for VW & Audi Cover
AUTOKAY 07K145100H / 07K145215A Vacuum Pump Rebuild Seal Gasket O-Ring Fits for VW Jetta Beetle Golf & for Audi TT RS

The AUTOKAY Pump Seal is designed to replace several specific part numbers, ensuring compatibility with your vehicle’s existing parts for a smooth and hassle-free installation. It fits a range of Volkswagen models, including Beetle, Golf, Jetta, Passat, and Rabbit from various years, so you can trust it to work well with your car. Additionally, this seal is compatible with the Audi TT RS Quattro models from 2012-2013, giving you versatility if you own an Audi. By using this pump seal, you can maintain your vehicle’s vacuum pump performance, helping to avoid leaks and keep your car running efficiently.

What We Like
Multiple part number replacements
Fits various Volkswagen models
Compatible with Audi TT RS
Ensures vacuum pump sealing
#TOP 4

Hydro-Gear 70525 BDP-10A Seal Kit

70525
Hydro-Gear 70525 BDP-10A Seal Kit Cover
Hydro-Gear Genuine Original 70525 BDP-10A Pump Overhaul Seal Kit with Seals & Gaskets

The Hydro-Gear Seal Kit is a genuine OEM replacement part designed for transmission overhaul. This kit includes the 70525 Overhaul Seal Kit, ensuring proper installation and compatibility. The new, bulk packed kit comes with seals and gaskets, making it convenient for you to repair your transmission. By consulting the owner's manual for part identification, you can easily install this kit yourself, saving time and money on professional repairs.

What We Like
Genuine OEM part
Easy installation
Includes seals and gaskets
#TOP 5

MOTOKU Vacuum Pump Seal Kit for Jeep Renegade and More

04892641AC
MOTOKU Vacuum Pump Seal Kit for Jeep Renegade and More Cover
MOTOKU Vacuum Pump Rebuild Seal Kit for Jeep Renegade 2015-2020 for Dodge Dart for Fiat 500 2012-2020

The MOTOKU Vacuum Pump Seal Kit is designed to fit several popular car models, making it a versatile choice for your vehicle maintenance needs. If you drive a Jeep Renegade from 2015 to 2020, this kit ensures a proper seal for your vacuum pump, helping maintain engine efficiency. It also fits the Alfa Romeo Mito from 2012 to 2013, so you can keep your car running smoothly. For Dodge Dart owners from 2013 to 2016, this kit provides a reliable replacement solution. Additionally, if you own a Fiat 500X, 500L, 124 Spider, or 500 from various years between 2012 and 2020, this kit offers a convenient fix to keep your vacuum pump in top condition. Using this kit helps you avoid costly repairs and keeps your car performing well.

What We Like
Wide vehicle compatibility
Reliable vacuum pump sealing
Easy maintenance solution
Suitable for multiple Fiat models
#TOP 6

Fill-Rite KIT120SL Shaft Seal Kit

KIT120SL
Factory
One Size
Fill-Rite KIT120SL Shaft Seal Kit Cover
Fill-Rite KIT120SL Kit, Shaft Seal Small Pumps (600, 1200, 2400, 4200, 4400 Series)

The Fill-Rite KIT120SL Shaft Seal Kit is an automatic transaxle pump seal kit that comes with instructions and washers. The kit can be used for small pumps from the 600 to 4400 series depending on your pump's age. Made in China, it contains one unit per kit.

What We Like
Comes with instructions and washers
Can be used for small pumps from 600 to 4400 series
Contains one unit per kit
#TOP 7

Threlaco 12668429 Engine Vacuum Pump Seal Rings (4-Pack)

JYD-Threlaco-2202
Threlaco 12668429 Engine Vacuum Pump Seal Rings (4-Pack) Cover
Threlaco 4 Pcs 12668429 Engine Vacuum Pump Seal Ring Professional Vacuum Pump Oil Seal Compatible with Genuine Parts for Car Vehicle Truck

The Threlaco Vacuum Pump Seals come in a set of four, designed to boost your engine's performance by replacing worn-out seals in your vacuum pump. Made from durable rubber, these seals can handle the heat and pressure inside your engine, helping it run smoothly even under tough conditions. Each seal is precisely sized to fit perfectly in your pump, making installation easy and ensuring a tight, secure fit. With these seals, you prevent vacuum leaks, which keeps the vacuum pressure steady and supports your engine’s accessories, ultimately improving your vehicle's overall performance.

What We Like
Durable rubber material
Precise sizing for perfect fit
Prevents vacuum leaks
Enhances engine performance
#TOP 8

Jetuplusllc Vacuum Pump Seal Kit for Fiat Jeep 1.3L 1.4L

Jetuplusllc Vacuum Pump Seal Kit for Fiat Jeep 1.3L 1.4L Cover
Jetuplusllc Vacuum Pump Rebuild Seal Kit Compatible with Fiat, Jeep 1.4L 1.3L Engines 68120415AA 55233645

The Jetuplusllc Vacuum Seal Kit is designed specifically for Fiat and Jeep engines with 1.3L and 1.4L capacities. This kit includes a main front seal for the vacuum pump, which helps prevent leaks and ensures your engine runs smoothly. It also comes with a vacuum port O-ring that provides a tight seal for better performance. Additionally, the graphite-coated rear crush gasket included in the kit enhances durability and helps maintain a secure fit. With these components, you can keep your vacuum pump well-sealed and functioning properly, saving you time and potential repair costs.

What We Like
Engine-specific compatibility
Main vacuum pump seal
Vacuum port O-ring included
Durable graphite-coated gasket
#TOP 9

Bzcovac 72994 Transaxle Seal Kit

72994
Bzcovac 72994 Transaxle Seal Kit Cover
72994 Transaxle Seal Service Kit for Hydro-Gear ZT-2800 ZT-3100 ZT-3200 and ZT-3400 Rebuild, Charge Pump Gerotor Seal Part, 30-piece set

The Bzcovac Seal Kit is designed to enhance the performance and reliability of your Hydro-Gear ZT transaxles. It effectively prevents fluid leaks and maintains optimal pressure, which is crucial for the hydraulic system's integrity. By keeping contaminants out, this kit minimizes wear on internal components, extending their lifespan. Made from durable materials, it can withstand tough conditions, ensuring consistent performance over time. With a wide compatibility range, it simplifies repairs and maintenance, making it easier for you to keep your equipment running smoothly.

What We Like
Prevents fluid leaks
Extends component lifespan
High durability materials
Wide compatibility range
#TOP 10

Allison Transmission Tube Seal

Allison Transmission Tube Seal Cover
Allison Transmission 29546229 Transmission Tube Seal

The Allison Transmission Tube Seal is an auto part made in the United States. It is an automatic transmission pump seal that weighs 0.2 oz. This product is ideal for those who are looking for a replacement part for their automatic transaxle pump seals.

What We Like
High-quality auto part
Made in the United States
Lightweight
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What are the seals on an automatic transmission?

Automatic transmission seals are used to contain fluid pressure and prevent leakage. They can be made of metal, synthetic rubber, or Teflon. There are two types of seals: positive seals that contain all fluid and non-positive seals that allow a small amount of fluid for lubrication.

2. How many seals does a transmission have?

A transmission typically has two main external seals: the front seal and the rear seal. The front seal is located where the torque converter mounts to the transmission case. It allows fluid to move from the converter to the transmission while preventing leaks.

3. Where are lip seals used in an automatic transmission?

Lip seals are commonly used in automatic transmissions, particularly at the point where filters assemble into the transmission. These seals ensure a proper seal and may sometimes be referred to as O-rings.

4. What happens when a transmission seal goes bad?

When a transmission seal fails, it can lead to fluid leaks. These leaks can cause damage to the transmission and potentially lead to a complete transmission failure. It is important to address seal failures promptly to prevent further damage.

5. Are transmission seals easy to replace?

While many transmission seals are inexpensive and straightforward to replace, some may require extensive dismantling to access. For example, gearbox oil seals usually require removing the entire gearbox. It is advisable to seek professional assistance for these types of seal replacements.

6. What causes transmission lip seal failure?

Excessive temperature is a common cause of transmission lip seal failure. High temperatures can result in thinner lubricating film, leading to dry running conditions. Additionally, elevated temperatures can cause cracking or blistering of the elastomer material used in the seals.

Editor's Notes

During our automatic transaxle pump seal research, we found 24 automatic transaxle pump seal products and shortlisted 10 quality products. We collected and analyzed 6,356 customer reviews through our big data system to write the automatic transaxle pump seals list. We found that most customers choose automatic transaxle pump seals with an average price of $15.55.

The automatic transaxle pump seals are available for purchase. We have researched hundreds of brands and picked the top brands of automatic transaxle pump seals, including RKX, AUTOKAY, Hydro-Gear, MOTOKU, Fill-Rite. The seller of top 1 product has received honest feedback from 69 consumers with an average rating of 4.9.

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.