April 2026
A Powerhouse Partnership: Momentum Since December
Since we officially announced our partnership this past December, the response from the diesel and high-performance communities has been absolutely incredible.
When Fluidyne owner and aftermarket industry veteran Frank Kuperman Jr. joined forces with Randy Reyes, they promised to bring a “whole lot of badass products to the market,” and we’ve spent the first few months of 2026 doing exactly that. By merging Fluidyne’s NASCAR quality thermal management with Randy’s real-world, high-torque transmission expertise, this partnership hasn’t just met the massive demand—it has set an entirely new standard. Together, we are rapidly rolling out an exclusive, high-capacity line of drivetrain and cooling solutions specifically engineered to tackle the intense demands of modern diesel pickups and high-performance builds.
Coast-to-Coast Cooling Power: The Fluidyne & Randy’s Transmissions Partnership is Firing on All Cylinders
Heat is the ultimate enemy of any hard-working vehicle. Whether you’re hauling heavy loads cross-country, pushing high horsepower on the dyno, or just heading up for a weekend at the lake, maintaining optimal fluid temperatures is the key to your drivetrain’s survival.
When standard factory cooling systems fall short, it’s time to call in the heavy hitters. Discover the exceptional efficiency of Fluidyne High Performance, now backed by an industry-shaking partnership with Randy’s Transmissions.
Keeping Cool Under Pressure: High-Performance
TransmissionCoolers
Your transmission works just as hard as your engine, and excessive heat is the leading cause of premature failure. Co-developed by Randy’s Transmissions and Fluidyne, our new lineup of high-capacity, high-efficiency transmission coolers are engineered specifically for the extreme rigors of diesel pickups.
Our lineup includes:
- Premium Construction: Available in both heavy-duty bar plate and stacked plate configurations. (some models)
- Optional Universal Remote Setups: For performance rigs that might not have room under the hood – such as dyno, or drag/race trucks, we offer remote mount coolers with USA made Spal fans to expel heat quick. Available with 11” 932CFM or 11” 1372CFM Fans.
The NASCAR Advantage: Seamless Extruded Tubes
Our performance radiators utilize a NASCAR-derived design built for extreme environments. While competitors focus on thin, lightweight builds, we prioritize structural integrity and long-term reliability.
Extruded vs. Folded Design
The secret to our durability lies in how the cooling tubes are manufactured.
- Our Design (Extruded): We use a precision die to form seamless, one-piece tubes. Think of how pasta is made—because they are created as a single solid unit from thicker material, there are no joints to fail.
- The Competition (Folded & Welded): Most leading brands take a thin, flat plate of aluminum, fold it into a tube shape, and weld the seam.
Eliminating the Leak Point
The “folded” method used by competitors creates a structural weak point running the entire length of every single tube. Under the high pressure and constant heat cycling of a performance engine, these welded seams are the first place to fatigue, crack, and leak.
By using die-formed extruded tubes, we have completely eliminated that seam. You get a beefier, more resilient radiator that removes the primary cause of cooling failure before it ever starts.
The days of compromising on cooling are over. By fusing Fluidyne’s precision engineering with Randy’s Transmissions’ high-torque expertise, we’ve built a lineup that tackles the two biggest killers of any diesel: heat and structural fatigue. We didn’t just improve the radiator; we redesigned it to eliminate the seams where the competition fails. When you’re ready to stop babying your temps and start demanding more from your rig, choose the durability of a NASCAR-derived design. Upgrade to the partnership that’s engineered to win.