Upgrade All-Aluminum Tube-Fin Intercooler for 2003-2009 Dodge Ram 2500/3500 5.9L/6.7L Diesel | SPELAB

5.9L/6.7L Cummins Tube-Fin Intercooler Overview

Match the reliability of your Cummins engine with an intercooler built to last. The SPELAB All-Aluminum Tube-Fin Intercooler is the ultimate durability upgrade for 2003-2009 Dodge Ram 2500/3500 trucks, replacing the weak factory unit with a 100% welded aluminum solution.

Designed specifically for the heavy-duty demands of the 5.9L and the high-heat environment of the 6.7L Cummins, this intercooler features an optimized Tube-Fin core. Unlike overly dense aftermarket options that can block airflow to your radiator, the SPELAB design maximizes pass-through cooling, ensuring your engine coolant temperatures stay in the safe zone while towing heavy loads.

With solid aluminum end tanks, this unit eliminates the risk of blown plastic crimps—a common failure when towing or under boost. It is the smart, cost-effective choice for work trucks, daily drivers, and fleet vehicles that need to stay on the road, not in the shop.

All-Aluminum Intercooler Fitment

• 2003 Dodge Ram 2500/3500 5.9L Diesel
• 2004 Dodge Ram 2500/3500 5.9L Diesel
• 2005 Dodge Ram 2500/3500 5.9L Diesel
• 2006 Dodge Ram 2500/3500 5.9L Diesel
• 2007 Dodge Ram 2500/3500 5.9L Diesel
• 2007 Dodge Ram 2500/3500/4500/5500 6.7L Diesel
• 2008 Dodge Ram 2500/3500/4500/5500 6.7L Diesel
• 2009 Dodge Ram 2500/3500/4500/5500 6.7L Diesel

Tube-Fin Intercooler Key Features

• Radiator-Friendly Cooling
  The Cummins cooling stack is packed tight. Our Tube-Fin core features an aerodynamic fin design that cools the intake air effectively while allowing sufficient ambient air to pass through to your radiator and transmission cooler. This helps prevent the dreaded engine overheating and excessive fan clutch engagement often seen with thicker, denser cores during heavy towing.

• Eliminate Plastic Tank Failures
  Don't let a plastic end tank strand you on the side of the road. The factory crimped design is the weak link in your boost system. Spelab’s intercooler features solid aluminum end tankswelded to the core, providing the structural integrity needed to handle the torque and boost of the Cummins engine.

• Rapid Thermal Recovery
  Heavy loads create heat spikes. The Tube-Fin construction holds less heat than heavier units, allowing it to "recover" and cool down faster after climbing a steep grade. This keeps your Intake Air Temperatures (IATs) consistent throughout your journey.

• OEM Fit, Heavy-Duty Build
  This isn't just a replacement; it's an upgrade. We kept the precise OEM mounting points for an easy install but upgraded every material to aluminum alloy for superior corrosion resistance and longevity.

Product Specifications

Ram Tube-Fin Intercooler FAQs

Q: Will this cause my truck to overheat while towing?
A: No, quite the opposite. This Tube-Fin design is specifically engineered to allow airflow to pass through to your radiator, making it one of the safest options for towing heavy loads, especially for the heat-sensitive 6.7L models.

Q: My stock intercooler has plastic tanks, why is this better?
A: Plastic tanks are crimped onto the core and weaken over time due to heat cycles and vibration, eventually blowing apart. Our unit is 100% aluminum and welded, making it a permanent "lifetime" fix.

Q: Why should I buy this instead of a Bar-and-Plate?
A: This Tube-Fin model is the best choice for "Workhorse" trucks—daily driving, towing, and highway cruising where maintaining radiator airflow and quick heat recovery is the priority. Our Bar-and-Plate version is recommended strictly for competition use or dedicated high-boost racing setups.

Q: Will this fit my 2004.5 5.9L?
A: Yes, it fits all 2003-2007 5.9L and 2007-2009 6.7L Dodge Ram diesel trucks.