What Is A Transmission Filter Kit? Explained!

A transmission filter kit is a set of components in a vehicle’s transmission system that includes a filter, gasket, a pickup tube, and an O-ring seal. The transmission filter kit provides a comprehensive change of transmission fluid filtering system, making it a must-have for proactive maintenance.

You’re just getting started. Check out the full scoop below.

What Is A Transmission Filter Kit?

A transmission filter kit is a set of components that are needed to replace the transmission filter system. The main purpose of this kit is to filter out the debris and dirt from the fluid. Kit parts replace the necessary parts of the transmission filter system during a complete maintenance involving transmission oil and filter kit replacement.

Installing a transmission filter kit is a routine maintenance procedure that is typically performed every 30,000 to 60,000 miles on manual transmission and 60,000 to 100,000 miles for automatic transmission, or as recommended by the vehicle manufacturer.

What Is Included In The Transmission Filter Kit?

There are several tools and components that are included in the transmission filter kit. Let’s see what components can typically be found in the transmission filter kit.

Transmission Filter

The transmission filter is the main component of the transmission filter kit. It’s the most essential for cleaning the transmission fluid. Mainly this component catches the debris and contamination before reaching the transmission fluid pump. 

Transmission Filter Kit

Transmission filters come in a variety of types, including compact flat filters, spin-on filters, suction filters that sit in the oil reservoir, and pressure filters used in CVTs and DSGs.

Filter Gasket

The filter gasket is another essential component of the transmission filter kit. The gasket serves as a seal between the transmission filter and the transmission housing. Fluid leaks can damage transmissions and cause performance issues. This prevents transmission fluid from leaking out of the system.


Pickup Tube 

To refill the transmission fluid in the transmission fluid pump, the pickup tube is the  most crucial kit component. It is a metal tube that is designed to pick up transmission fluid from the oil pan and deliver it to the transmission pump.

It has strainers at its ends to remove debris, dirt, and contaminants from the oil pan. In addition, this tube prevents air from being sucked into the transmission system to prevent further damage

Fluid Pump Tube


The O-ring, also known as a packing or a toric joint, creates a secure seal between the transmission filter and the transmission case. As a result, the transmission fluid stays within the system instead of leaking out, which could damage the transmission and reduce its efficiency. (1)

Additionally, the O-ring prevents contaminants from entering the transmission system, which can contaminate the transmission fluid.

Why Do You Need A Transmission Filter Kit?

To maintain the health and longevity of a vehicle’s transmission system, you need a transmission filter kit. Transmission fluid acts as a lubricant and coolant, and if it becomes contaminated, it may lead to reduced efficiency and increased wear on transmission components. 

There is a high risk of transmission failure as a result of this, which can lead to expensive repairs. In conjunction with regular fluid changes, the filter kit extends the transmission’s life and prevents costly repairs. 

How Much Does A Transmission Filter Kit Cost?

The cost of the kits can range from $8 to $155, with some kits being more expensive due to the complexity of the transmission system or the use of high-quality materials. A kit’s price can also vary depending on brand, location, vat/tax and shipping cost.

When purchasing a transmission filter kit, it’s important to keep in mind that cost should not be the only factor to be considered. The quality and compatibility of the kit should also be taken into consideration to ensure proper installation and performance of the transmission system.


Will Changing The Transmission Filter Help Shift?

Yes, changing the transmission filter can help with smoother shifting, but it will not resolve mechanical problems with the transmission. However, changing the fluid can improve the transmission’s performance and extend its lifespan.

What Are The Symptoms Of Dirty Transmission Fluid?

The symptoms of dirty transmission fluid include transmission whining noise, gears slipping, and inability to go into reverse gear. Also slipping out of gear, the engine running hot, and grinding noise are some other symptoms of this issue.

How Do You Know If Your Transmission Fluid Needs To Be Changed?

Hard shifts, thumps between gears, and trouble going into gear are signs that transmission fluid needs to be changed. Also, slipping or jumping gears, delay in acceleration, and strange noises like whining or grinding indicate that transmission fluid needs to be changed. 


This is all about what is a transmission fluid filter kit. Hopefully, you’ve got the point of what you wanted to dig out. Don’t delay replacing the transmission fluid at the recommended interval for the sake of better transmission performance. 

Your patience is always appreciated!

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William Baldwin

This Is William Baldwin, The Founder & Managing Editor of this website. Me and my team share automotive tips, tricks, and news

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Talha Atta

Talha Atta, a Mechanical Engineer and experienced technical content writer and editor at Autoglobes.com with a passion for the automotive industry.