Cross Reference Search for Springs, Suspensions and Air Springs


August 26, 2019

New Item Updates

It's easy to miss when new items get added to inventory.  Once you've logged in, click on the "Triangle News" to download a pdf list of items that have been recently added and are ready for shipment.  

June 20, 2019

Drag Links - Check for New Lengths now Available

DRAG LINKS come in all lengths from a Peterbilt 12-3/8 inch to a Ford 66-9/16 inch.  Triangle is adding many additional lengths to supply you with the right part for your needs.  Use the Enhanced Drag Link Dimensional search to find the length you are looking for.   

June 11, 2019

Spring Dimensional Search now available!

If you are looking for a spring, and know some of the dimensional information, then the new search tool may be just what you need to find the spring for the job.  From the Home page in the Spring column, just select this highlighted search and key in what data you know.  At any point, you can "Apply Filter" to see your results.  More data and the results will get narrowed down even more.  Once logged in, take a look at this new feature.


February 02, 2019

U-Bolt Kit Change--2/2/2019

Effective 2/2/2019

Triangle will be selling U-Bolt Kits per BOX units.  Order (1) Box, receive (1) Box.  Priced per each Box.

The box contents are NOT changing, only the unit of sale.  Inventory will show boxes on-hand.

October 31, 2018

For Immediate Release.... Triangle Updates Spring Corrosion Protection

Triangle Suspension Systems Substantially Improves Leaf Spring Product Corrosion Protection
DuBois, PA (October 29, 2018) Triangle Suspension Systems has substantially improved the corrosion protection of their multi leaf and parabolic springs by adding a new high performance, corrosion resistant water-based coating. 

Damage caused by corrosion is an on-going and costly issue affecting most North American truck fleets.  Triangle evaluated several coatings for salt spray corrosion results, dry time improvements and process capabilities in order to offer the industry leaf springs that would not show signs of corrosion in a short period of time. The test results for the new coating show that it offers three times the corrosion resistance distinguishing Triangle suspension leaf spring products as an excellent choice for vehicle operators .

Since the new coating continues to be a water-based product and low in VOC’s it is compliant to today’s environmental rules and guidelines and does not require a Proposition 65 warning label. 
The new corrosion resistant Triangle leaf spring products are available throughout North America from their network of 1400 distribution locations. Visit to find out more about their products and where they are available. 

About Triangle Suspension Systems, Inc

Triangle Suspension Systems, Inc. is a leader in providing quality undercarriage products for heavy, medium & light duty trucks and trailers in the North American market with a nationwide network of over 1400 distributor locations.  Their USA-manufactured products are known for consistent quality.  Broad product coverage of springs, suspension parts and air springs are backed by ISO registered facilities and strong employee commitment to delivering quality products. Triangle Suspension Systems, Inc. is a Marmon Highway Technologies®/Berkshire Hathaway company. Marmon Highway Technologies (MHT) supports the highway transportation industry worldwide with a wide range of high-quality products and services.


August 24, 2018

TRAXX Rod Length Conversion table

The attached will give you the conversion from inches to mm to assist you in determing the correct rod to order.

July 24, 2018

NOW ON SPECIAL Hendrickson Genuine Parts TRAXX Rods now available thru Triangle

Once you log in, take a look at the Triangle News for more information on the Hendrickson Genuine Parats TRAXX ROD tm  now available thru your Triangle Suspension distrubution centers.  Also check out the Introductory Promotional pricing being offered now thru the end of Spetember.  

April 21, 2018

Additional Watson & Chalin Alignment and Service Kits added to product offering

Triangle Suspension Systems, your market leader since 1919, is now offering these Watson & Chalin Alignment and Service Kits.  Download the pdf for details, or add to your order by searching on part numbers.  

  • Model Trailer Air Standard or Eccentric Alignment Service Kit

  • Model Trailer Air Standard or High Control Pivot Bushing Service Kit

  • Pivot Bushing or Axle Connection Bushing

  • Trailer Air Eccentric or Standard Alignment Washer

February 10, 2018

This Web Site Address-- --Direct link address

Make a note on your calendar or make the change today....   Get directly to this logon page by using this in your address bar.


Just type that in your browser and this page will load for you to login.

If you are getting to this logon page from the home page, you may experience some issues next weekend when we make an update to introduce our new site.  By using the web address above, you should not see any interruption in access.  


October 18, 2016

Longer Center Cross Tubes added to Triangle Product Line

If you are looking for the longer center cross tubes, check out the items that have been added by using the Enhanced Center Tube search option.  Select from the length dropdown to see the specifics on each item.  If you did not receive this New Product announcement, be sure to send us your email updates.  


July 21, 2016

Do you need a new logon?

If you were re-directed to this page from the Triangle home page, and you haven’t received your updated user profile information, you need to request it now. Click on the “Contact Us” button at the top of this page and fill in all the information before you submit your request.

You will receive an email with the updated user information to get you up and running with this new site as soon as your request is processed.

Terms of Use

Welcome to WebSST™ web site of Triangle Suspension Systems, Inc. By logging onto this web site, you agree to comply with and be bound by the following terms and conditions. Please review these terms and conditions carefully and in their entirety. If you do not agree with these terms and conditions, you are not granted permission to use the web site and should exit immediately.

The purpose of and WebSST™ is to provide users information about Triangle. Information provided on this website does not constitute, nor is it intended to constitute, professional advice or services. Users are encouraged to consult with their professional advisors regarding suspension applications.

Proper inspection, service and repair of the entire suspension system are important for safe and reliable operation of any suspension system.

The use in this electronic catalog of the names of manufacturers and their product numbers is for the assistance of our customers in identifying replacement parts. Names in this electronic catalog may be trademarks or trade names of manufacturers and suppliers other than Triangle Suspension Systems, Inc. and there is no affiliation between Triangle Suspension Systems, Inc. and such manufacturers and suppliers.

The SRI part numbers assigned by SRI are the intellectual property of, and owned by, SRI, and any use of the SRI part numbers without SRI’s express written permission is prohibited.

Individuals are permitted to print material published on this site, for individual, private use only. It is required that you maintain our integrity and do not retransmit or modify any files from this website without the expressed written permission of Triangle. Triangle materials are available for individual private use only and may not be sold, distributed, modified, published, licensed or recreated for commercial or public use. Use of Triangle logos or other logos displayed on this site remain the property of Triangle and other parties. Do not distribute or use these marks or logos without written consent.

We welcome your comments, questions, suggestions or ideas related to or WebSST™. When forwarding such information understand that we may need to share the information with others for the ongoing integrity and functionality of the site. Unless you state otherwise, Triangle is free to use this information in any manner, including but not limited to developing and marketing products based on such information.

The information on or WebSST™ changes continuously. The information is available to you 'as is' without any guaranty or warranty of any kind. Although accuracy is important to us, Triangle shall have no responsibility for errors or omissions contained in this website, nor shall Triangle have any responsibility for any results obtained from the use of information provided on this website. In no event will Triangle, any of its affiliates, or their directors, officers or employees be liable to any party for loss or damage of any kind arising from the use or inability to use this website.

We also provide links to other websites. The links are provided for your convenience and remain outside of Triangle's control. We are not responsible for any content of a linked site and providing this link does not imply endorsement of the site, information, company or products provided.

We want you to link to our site. Please contact us to request authorization to link to our site. Triangle does reserve the right to disable any unauthorized links and is not responsible for the content of any sites linked to our site. Triangle shall not be liable to any party for loss or damage of any kind arising from the use or inability to use any linked site.

Enjoy the full potential of our site. Also understand that user access and use of this site is subject to all applicable laws and regulations. Access to secure or password-protected areas on this site is restricted to individual authorized users only.

Your Privacy

At Triangle Suspension Systems, Inc., we make protecting your privacy a top priority, and hold your personal information in strict confidence.

Our employees must comply with federal regulations that prohibit unauthorized use of your information. We do not sell your information to third parties. And, unless required by law, we do not provide your information to anyone (including your accountant or attorney) without your authorization.

© Copyright 2016 - 2018 - Triangle Suspension Systems, Inc. - All rights reserved