Massive Cooling Capacity Increase

One of the biggest upgrades is the:

• 28% increase in coolant capacity over stock

This helps provide:

• Better thermal stability
• Reduced heat soak
• Improved sustained cooling
• Lower operating temperatures under load

Especially beneficial during:

• Heavy towing
• Long mountain grades
• Summer hauling
• High-load acceleration
• Extended highway driving

Where stock cooling systems occasionally begin negotiating surrender terms internally.

The legendary reliability and power of the 6.7L Cummins equipped Dodge Ram has solidified it as probably the most popular trucks on this planet for getting work done.

Full Aluminum Heavy-Duty Construction

Unlike factory radiators that commonly use:

• Plastic end tanks
• Crimped seams
• Composite fittings

The Mishimoto radiator features:

• Full aluminum construction
• TIG-welded end tanks
• Welded aluminum fittings

This dramatically improves:

• Durability
• Pressure resistance
• Long-term reliability
• Heat transfer capability

Because diesel trucks towing 15,000 pounds generate enough vibration and heat to expose weak cooling systems very quickly.

But each legend has its weakness, and for the Dodge Ram, the stock radiator is one of them. The plastic end-tanks of the stock Ram radiator are vulnerable to cracking and leaking over the years. Add the increased stress and heat created by hauling heavy workloads, and you have got a recipe for disaster.

Built for Towing & Heavy Hauling

This radiator is especially valuable for:

• Fifth-wheel towing
• Gooseneck hauling
• Equipment trailers
• RV towing
• Construction work
• Long-distance hauling

Improved cooling helps reduce:

• Coolant temperature spikes
• Thermal fatigue
• Heat-related power loss
• Cooling system stress

Especially when climbing mountain grades with trailers large enough to have their own ZIP code.

But that’s where Mishimoto can assist. Our new 2019+ Ram 2500/3500 radiator is the ideal upgrade for any workhorse Cummins powered Ram. With a completely aluminum, TIG-welded construction, the Mishimoto radiator is as tough as your truck. A 28% increase in fluid capacity means you’ll be able to pile on the power and never worry about the heat.

Compatible Ram Cummins Models

The Mishimoto Performance Aluminum Radiator is compatible with:

• 2019+ Ram 2500 6.7L Cummins
• 2019+ Ram 3500 6.7L Cummins

Perfect for:

• Tow rigs
• Heavy-duty work trucks
• Tuned diesel builds
• Long-haul setups
• Fleet trucks
• Off-road diesel builds

Because no Cummins owner leaves anything stock once they discover torque numbers exist.

Increases fluid capacity by 28% to maximize cooling

Better Cooling for Tuned Cummins Builds

This radiator is ideal for:

• Tuned diesel setups
• Emissions-equipped trucks
• Heavy torque builds
• Modified tow rigs
• High-boost applications

Extra horsepower creates:

• Higher EGTs
• Increased coolant load
• More thermal stress
• Greater sustained engine temperatures

And tuned diesels generate heat with the subtlety of industrial machinery.

Durable fully aluminum construction with TIG-welded end tanks and fittings
Includes bushing replacements for old or worn out bushings
Strutted tubes all the way through for maximum rigidity and durability

Improved Long-Term Reliability

A larger all-aluminum radiator helps improve:

• Thermal consistency
• Cooling system longevity
• Engine reliability
• Heavy-duty performance

Especially important because:

• Cummins trucks are frequently kept for hundreds of thousands of miles
• Diesel owners tend to tow constantly
• Reliability matters more than almost anything on work trucks

Because nobody wants cooling system drama halfway through a cross-country tow.

OEM-Style Direct Fit Installation

The radiator is engineered for:

• Direct-fit installation
• Factory hose compatibility
• OEM mounting integration

Typical installation requires:

• Coolant drain
• Socket set
• Hose clamp tools
• Approximately 4-6 hours

No major:

• Fabrication
• Cutting
• Custom mounting typically required

Which is fortunate, because modern diesel engine bays already contain enough plumbing to resemble a commercial power station.

Why Upgrade the Ram Cummins Radiator?

Common reasons owners upgrade radiators include:

• Heavy towing demands
• Tuned diesel cooling needs
• Preventative maintenance
• Long-haul reliability
• Aging OEM cooling concerns
• Extreme climate operation

A performance radiator remains one of the smartest upgrades for heavy-duty diesel trucks because:

• Heat kills towing reliability quickly
• Modern diesels generate massive thermal load
• Heavy hauling exposes cooling limitations fast

Especially once modifications and trailers start stacking up.

Final Verdict

For 2019+ Ram 6.7L Cummins owners wanting improved cooling performance and long-term towing reliability, the Mishimoto Performance Aluminum Radiator delivers major thermal management improvements with heavy-duty aluminum construction.

Key benefits include:

• 28% greater coolant capacity
• Full aluminum construction
• TIG-welded end tanks
• Improved towing performance
• Better thermal stability
• Direct-fit installation

Most importantly, your Cummins finally stops treating steep towing grades like a live-action thermal endurance competition.