Fontaine No-Slack™ Top Plate Conversion At FleetPride
Written July, 2023
At FleetPride, we are passionate about keeping our heavy duty truck and trailer customers informed about the latest technology in our aftermarket industry. In this article, we will be covering the No-Slack™ Top Plate Conversion by Fontaine.
Top Plate Conversion Made Easy
Discover Fontaine’s No-Slack™ Top Plate Conversion can revolutionize your truck’s fifth wheel experience. It is designed to convert any fifth wheel brand top plate into Fontaine’s complete assembly that bolts to the existing outboard angles of your truck. You can connect with your local FleetPride team members to experience the technology for yourself.

You can find the whole assembly with just a few clicks of the mouse. Yes, you read it correctly. Get a complete assembly (including a top plate, bracket, and slide rail) for what it would cost you to just replace the top plate from other brands . . .
As if this deal was not sweet enough, we are not done yet. This promotional price is available the entire 2023 calendar year. When you convert the complete assembly, you also receive a new five-year manufacturer warranty. Did someone say, Christmas in July?
Fontaine No-Slack™ Fifth Wheel Top Plates
Fifth Wheel Top Plate is a crucial component of the fifth wheel assembly. The top plate ensures you have a secure connection for your cargo trailer. It is important to keep your top plate in peak condition. This will help prevent movement, disconnection of the truck, or damage to your truck.
Gain superior durability, improved weight distribution, and enhanced maneuverability. With the investment in Fontaine, you achieve optimal performance.
Heavy Duty Tech Tip
From Our Heavy Duty Experts™: Proper maintenance of your fifth wheel top plate is imperative to ensure consistent proper coupling of your trailer. We recommend washing your top plate every 30,000 miles, successfully removing hard grease and debris from above and below the top plate. After the cleaning process, ensure proper lubrication, using lithium based extreme pressure grease spread evenly across the top plate, 5th wheel, and mount’s zerk fittings, as well as a light coat on the locking mechanism pivot points under the 5th wheel plate.
Visit your local Service Center for more tech tips to keep you Ready for the Road Ahead™.

Easy Installation
Fontaine No-Slack™ Top Plates are easy to install. They feature automatic self-adjust technology which removes slack between the king pin and the jaw. This allows for a secure connection to easily switch trailers. Fontaine customers experience a smoother ride that is easy on the wallet with the reduction of maintenance costs.
FleetPride Has Fontaine Complete Assemblies In-Stock
FleetPride has five distribution centers in key locations across the U.S. We keep twelve separate part numbered Fontaine full assemblies in stock and ready for shipping.
Fontaine Part Number | Replaces |
---|---|
SL6LWB675024 | JSK36NSL-A7PX24 |
SL6PML6250 | JSK36NSL-DB6X |
SL6PML7250 | JSK36NSL-DB7X |
SL7LWB675012p | JSK37USL-A7PX12 |
SL7LWB725012 | JSK37USL-A8PX12 |
SL7LW675024 | JSK37USL-A7PX24 |
SL7LWB725024 | JSK37USL-A8PX24 |
SL7LWB825024 | JSK37USL-A9PX24 |
SL7LWB925024 | JSK37USL-A10PX24 |
SLH7AWB875024 | JSK37USL-A9PX24 |
SLH7NHDS800024 | JSK37USLN-A9PX24 |
FleetPride Keeps the Country Running
By choosing FleetPride as your partner, you can trust in their expertise and commitment to delivering exceptional products and services. Visit one of FleetPride's 300+ nationwide branches for assistance in gaining access to the "industry's best defense against false coupling." With partnerships like this, it's no wonder why FleetPride continues to keep the country running.
* The forgoing is provided for informational purposes only. Please consult your local FleetPride Heavy Duty Experts to verify the suitability of a part for the intended application.