Vehicle Compatibility

Dodge Ram 2500

Compatible with select Dodge Ram 2500 models equipped with:

• 5.9L Cummins Turbo Diesel

Dodge Ram 3500

Compatible with select Dodge Ram 3500 models equipped with:

• 5.9L Cummins Turbo Diesel

Engine Compatibility

✅ 5.9L Cummins Diesel

✅ Stock Turbocharger Applications

✅ Daily Driver Trucks

✅ Towing Applications

❌ Gasoline Engine Models

Always verify exact fitment using the vehicle application chart and part numbers before ordering.

Reference Numbers
18081
5170704AJ
SK18081

Why Replace the Factory Intercooler?

The intercooler cools compressed air from the turbocharger before it enters the engine.

As intercoolers age, they can develop:

• Boost leaks
• Bent cooling fins
• Internal contamination
• Cracked end tanks
• Reduced cooling efficiency

Replacing a failing intercooler helps restore proper turbocharger performance.

OE-Style Direct Fit Design

The TRQ intercooler is engineered as a direct replacement.

Benefits include:

• Factory mounting locations
• OEM-style installation
• No custom fabrication required
• Compatible with factory plumbing

This makes it a practical solution for work trucks and daily drivers.

Helps Restore Lost Performance

A failing intercooler can negatively impact:

• Turbo efficiency
• Throttle response
• Boost pressure
• Towing capability

Installing a new intercooler can help restore:

• Consistent boost delivery
• Proper charge-air cooling
• Factory drivability
• Reliable performance

YOUR TRUSTED DIY VIDEO SOURCE: TRQ offers the biggest catalog of DIY videos for replacement parts, making installation more straightforward and repairs more accessible. Our mission is that will help you “View Before You Do,” with hundreds of recent videos added weekly.

Benefits for Towing

The Cummins engine spends much of its life under heavy loads.

Common towing scenarios include:

Travel Trailers

Maintains performance during long highway pulls.

Equipment Hauling

Supports proper cooling under sustained boost.

Fifth-Wheel Trailers

Helps reduce temperature-related performance loss.

Commercial Use

Maintains reliability during daily work cycles.

Why Charge-Air Cooling Matters

Turbocharged diesel engines generate substantial heat.

Without effective intercooling:

• Intake temperatures rise
• Air density decreases
• EGTs increase
• Engine efficiency drops

Proper charge-air cooling helps maximize combustion efficiency and performance.

Common Symptoms of a Bad Intercooler

You may need replacement if you notice:

Reduced Power

The truck feels slower under acceleration.

Boost Leaks

Pressure loss reduces turbocharger effectiveness.

Increased EGTs

Higher temperatures under load can indicate cooling problems.

Oil Residue

Oil around intercooler connections may indicate leaks.

Damaged Fins

Road debris can reduce cooling efficiency.

TRQ’s DIY Installation Support

One feature that sets TRQ apart is its extensive installation support.

DIY-Friendly Approach

TRQ provides:

• Detailed installation videos
• Vehicle-specific repair guides
• Step-by-step tutorials
• Ongoing technical content

For many DIY enthusiasts, this can simplify the repair process significantly.

Trusted Replacement Part Brand

TRQ has built a reputation for:

• OE-style fitment
• Direct replacement parts
• Affordable pricing
• Broad vehicle coverage

Many truck owners choose TRQ when restoring factory functionality without paying dealership prices.

Reference Numbers

This intercooler references:

• 18081
• 5170704AJ
• SK18081

Always verify compatibility using your vehicle’s application information.

Installation Considerations

Before installation:

• Inspect intercooler boots
• Check boost tubes
• Replace worn clamps
• Inspect surrounding turbo plumbing

Many Cummins owners replace intercooler boots at the same time to prevent future leaks.

Pros and Cons

Pros

• Direct-fit replacement
• Designed for 5.9L Cummins applications
• OE-style installation
• Supports towing and daily driving
• TRQ installation video support
• Cost-effective replacement option

Cons

• Primarily a replacement component, not a high-performance upgrade
• Vehicle compatibility should be verified carefully
• Front-end disassembly required
• Gains focus on restoration rather than increased horsepower

Frequently Asked Questions

Is this a performance intercooler?

No. It is designed primarily as an OE-style replacement intercooler.

Will it help towing?

A properly functioning intercooler helps maintain power and cooling performance while towing.

Can a leaking intercooler reduce boost?

Yes. Boost leaks are one of the most common causes of power loss in turbocharged diesel engines.

Does it fit all Cummins trucks?

No. Always verify compatibility before purchasing.

Final Thoughts

The TRQ Turbo Intercooler is a practical replacement solution for Dodge Ram 2500 and 3500 owners running the legendary 5.9L Cummins diesel engine. With OE-style fitment, factory-compatible performance, and TRQ’s extensive installation support, it offers an affordable way to restore cooling efficiency and turbocharger performance.

Because when your Cummins is working hard, the intercooler should be helping the truck breathe—not acting like it already clocked out for the day.