Some upgrades are about power.
Some are about efficiency.
And some are about popping the hood and thinking:
“Yeah. That looks way better.”
The FASS Fabrication 2013–2018 Ram 2500/3500 6.7L Cummins Single Radiator Upper Coolant Tube falls squarely into that last category.
This is custom-fabricated upper coolant tube fits single-radiator 2013–2018 Ram 2500 and 3500 trucks with the 6.7 Cummins. Installation is easy—taking only a few minutes with basic tools.
What Is the FASS Fabrication Upper Coolant Tube?
The FASS Fabrication Upper Coolant Tube is a fabricated replacement-style upper coolant tube designed specifically for 2013–2018 Ram 2500 and 3500 trucks with the 6.7L Cummins and single-radiator setup.
Simply put, it looks cool, cleans up your engine bay, and adds some flair every time you pop the hood.
Built by FASS Fabrication
Like all FASS Fabrication products, these are designed, tested, and machined in-house—right here in Washington, MO. Spencer (founder of FASS Fabrication) has owned his share of 4th Gen Rams, so you can trust that these fit as good as they look.
Designed for Single-Radiator Trucks
This specific coolant tube is built for single-radiator applications.
Fitment includes:
- 2013–2018 Ram 2500 6.7L Cummins with single radiator
- 2013–2018 Ram 3500 6.7L Cummins with single radiator
That single-radiator note matters.
Some 2013–2015 trucks may have dual-radiator setups, and those trucks require different routing. If you are not sure which setup your truck has, reach out to us before ordering and we can help confirm fitment.
Available Raw, Powder Coated, or Custom Finished
One of the best parts of this upper coolant tube is that you can match it to the rest of your build.
Finish options include:
- Raw
- Standard Red
- Standard Blue
- Standard White
- Standard Orange
- Standard Purple
- Standard Yellow
- Custom powder coat color option
Going for a clean black-and-chrome engine bay?
A red-accented Cummins build?
A color-matched show truck?
This is one of those pieces that lets you add a little personality without going overboard.
FASS-Branded Hardware Included
Each kit includes the fabricated upper coolant tube along with FASS-branded installation hardware.
That matters—because the details are kinda the whole point.
You're not just buying some random imported knock-off. You're buying a Missouri-made piece that will look right and fit great.
Built-to-Order Lead Times
Because many FASS Fabrication parts are built to order, lead times are typically around 2–4 weeks before shipping.
That can vary depending on demand, powder coat selection, production schedule, and custom finish options.
If you are on a tight timeline or trying to finish a build before an event, give us a call before ordering and we can help confirm current availability or estimated lead time.
FASS Motorsports Can Help With Fitment and Installation
Not sure if your truck is a single-radiator application?
Want to make sure the color you choose fits the rest of your build?
Need help pairing this with other engine bay upgrades?
That is what we are here for.
FASS Motorsports sells, ships, and installs parts for diesel trucks every day, and our team can help make sure you are ordering the right part for your 2013–2018 Ram 6.7 Cummins.
Have questions? We're here to help.
- Phone: 636-429-7020
- Email: info@fassmotorsports.com
FASS Motorsports
25 Town and Country Drive
Washington, MO 63090
