Cat® Hydraulic and Transmission Filters
Cat® Hydraulic and Transmission Filters
Shop Products
Shop Products

Cat® Hydraulic and Transmission Filters

Cat® Hydraulic and Transmission Filters
of

Hydraulic and Transmission Filters

Know What You Need?

Start Shopping



Discuss Filters With Your Cat Dealer

Connect With Your Dealer

 

Overview

DESIGNED FOR LONGER LIFE AND IMPROVED PERFORMANCE
 

Cat Hydraulic and Transmission Filters are specially made to keep your machine's oil clean. They come in different efficiency levels and help prevent cold start by-pass. When used with other Cat Filters, Cat Fluids, and Cat S∙O∙S℠ Services as part of a system solution, they help provide the lowest total cost of ownership.

 

 

REDUCED OWNING AND OPERATING COSTS

Cat Hydraulic and Transmission Filters are an excellent, cost-effective choice for your machine. Using our filters keeps your systems running clean. They increase the life of the components and reduce waste and disposal costs. A great solution for your bottom line. 

CAT DURABLE DESIGN

Cat Hydraulic and Transmission Filters come in different efficiency levels and help achieve appropriate cleanliness levels. Innovative design incorporates a center tube that remains in the housing for the life of the machine. Developed in collaboration with machine components, Cat Filters offer enhanced protection for both new and older equipment, giving you the peace of mind that your entire fleet is well taken care of.
 

A SYSTEM APPROACH

Cat Hydraulic and Transmission Filters are manufactured to Caterpillar's exacting specifications and rigorously tested both in the lab and in the field. They provide your system with the protection it needs to increase performance. Cat Filters, Cat Fluids, and Cat S∙O∙S℠  Services are designed to work together for improved system performance.

 

 

 

 

GALLERY

Cat® Hydraulic and Transmission Filters

Cat® Hydraulic and Transmission Filters
of
Cat® Hydraulic and Transmission Filters
of
of
of
of

How to Replace Cat® Transmission Filters

FAQs

1. What makes Cat filters better than aftermarket filters for heavy equipment?

Cat® filters are engineered specifically for Cat equipment. With features like urethane end caps, spiral roving, acrylic beads, and non-metallic center tubes, they enhance contaminant retention and leak prevention. This helps protect your engine and hydraulic systems from premature wear—unlike many aftermarket filters that may not meet OEM standards.

2. Why should I use Cat fluids instead of generic alternatives?

Cat fluids are formulated to meet the exact specifications of Cat equipment. They help provide enhanced performance, reduce wear, and extend component life. Using non-Cat fluids may compromise system efficiency and void warranties.

3. What is Cat S·O·SSM fluid analysis and how does it help?

Cat S·O·SSM fluid analysis is a preventive maintenance tool that helps detect wear metals, contaminants, and fluid degradation. It helps identify potential issues before they become costly failures, allowing for proactive maintenance and extended equipment life.

4. How often should I replace Cat filters?

Follow the maintenance schedule in your equipment’s Operation & Maintenance Manual (OMM). Typically, Cat filters are designed for extended service intervals compared to aftermarket options, to help reduce downtime and maintenance costs.

5. Can I mix Cat fluids with other brands?

Mixing Cat fluids with non-Cat brands is not recommended. It can lead to chemical incompatibility, reduced performance, and potential damage to components. Use the Cat fluid selector tool to ensure compatibility. https://www.catfluidselector.com/

6. What are the benefits of using Cat DEO-ULS vs DEO?

Cat DEO-ULS (Diesel Engine Oil – Ultra Low Sulfur) is designed for engines using ultra-low sulfur diesel and equipped with aftertreatment systems. It offers enhanced oxidation stability and soot control. DEO is suitable for older engines without aftertreatment.

7. How do I interpret my S·O·S fluid analysis report?

The report highlights wear metals, contaminants, and fluid condition. Look for flagged values and trend data. If results are abnormal, consult your Cat dealer for recommendations. Regular sampling helps build a baseline for accurate diagnostics.

8. Where can I find the right filter or fluid for my machine?

Use the Cat filter cross reference tool www.catfiltercrossreference.com or consult your Cat dealer. Always verify part numbers and specifications to ensure proper fit and performance.

9. Are Cat filters and fluids more expensive than aftermarket options?

While the upfront cost may be higher, Cat products offer enhanced protection, longer service intervals, and reduced risk of failure—resulting in lower total cost of ownership.

10. How does S·O·S fluid analysis reduce downtime?

By identifying issues early, S·O·S analysis allows for planned maintenance instead of unexpected breakdowns. This helps minimize unplanned downtime and maximize equipment availability.


Cat Construction Equipment Maintenance: Do It Yourself Articles

Proper maintenance keeps your equipment reliable and job-ready. Check out these articles for hands-on tips to extend the life of your machine.

 ­

SEE MORE

 



 

An Easy Decision for Peace of Mind

Cat Filters and Fluids protect machine parts and are covered by the Caterpillar Limited Warranty* applicable to parts.


*Warranty can vary by model and application; limitations may apply. For complete details about the applicable Caterpillar Limited Warranty, contact an authorized Cat dealer.

LEARN MORE
Man Servicing hose on a mini excavator
Man Servicing hose on a mini excavator

Customer Value Agreements

Keep your Cat machines and engines ready to work with a flexible, hassle-free plan for parts delivery, service, data access and more. CVAs are available for your new, and not-so-new Cat machines and engines.

VIEW CVA DETAILS
Customer Value Agreement (CVA)
Customer Value Agreement (CVA)

CAT VANTAGE REWARDS

Get rewarded for the work you do. Join Cat Vantage Rewards to earn and redeem reward points when you purchase Cat parts and services.

GET STARTED
Cat Vantage Awards
Cat Vantage Awards

Parts Now. Pay Later.

Put your next filter purchase on the Cat® Card account. Easy expense tracking, no annual fee and financing up to 24 months with rates as low as 0% for 6 or 12 months.*

See Offer Details
Construction worker looking straight ahead
Construction worker looking straight ahead



* Terms and conditions apply.

 

DISCUSS HYDRAULIC AND TRANSMISSION FILTERS WITH YOUR CAT DEALER

CONNECT WITH YOUR DEALER

 

 

Air Filters
of

Air Filters

The right way to deal with dirt and contaminants.

 

MORE INFORMATION
Engine Oil Filters
of

Engine Oil Filters

Say hello to efficiency and goodbye to system failures.

 

MORE INFORMATION
Fuel filters
of

Fuel filters

The small stuff does damage. Be sure to stop it.

GET THE DETAILS
Cat Fluids
of

Cat Fluids

Cat Fluids are designed to help your system run cleaner, your machine perform better and your components last longer.

READ MORE


 

Products

Industry Solutions

Services & Support

How Can We Help?

Company Info

News

Connect with Cat

North America – English

Caterpillar Brands

  • US-English
  • © 2025 Caterpillar. All Rights Reserved.