Vehicle Compatibility

Chevrolet Silverado HD

• 2017 Chevrolet Silverado 2500HD 6.6L Duramax
• 2018 Chevrolet Silverado 2500HD 6.6L Duramax
• 2019 Chevrolet Silverado 2500HD 6.6L Duramax
• 2017 Chevrolet Silverado 3500HD 6.6L Duramax
• 2018 Chevrolet Silverado 3500HD 6.6L Duramax
• 2019 Chevrolet Silverado 3500HD 6.6L Duramax

GMC Sierra HD

• 2017 GMC Sierra 2500HD 6.6L Duramax
• 2018 GMC Sierra 2500HD 6.6L Duramax
• 2019 GMC Sierra 2500HD 6.6L Duramax
• 2017 GMC Sierra 3500HD 6.6L Duramax
• 2018 GMC Sierra 3500HD 6.6L Duramax
• 2019 GMC Sierra 3500HD 6.6L Duramax

Engine Compatibility

✅ 6.6L Duramax V8 Turbo Diesel

✅ L5P Duramax Engine

✅ Factory Turbocharger Systems

✅ Daily Drivers

✅ Towing and Commercial Use

Always confirm vehicle fitment before ordering.

[Specification]: Core Subject matter: Aluminum; Tank Subject matter Aluminum; Length: 28 3/16 Inch; Width: 16-3/8 Inch; Thickness: 1 3/16 Inch; Inlet: 2-nine/16 Inch; Outlet: 1-15/16 Inch

Why the Duramax Intercooler Matters

Turbocharged diesel engines create significant heat under load.

When compressed air leaves the turbocharger:

• Temperatures increase dramatically
• Air density decreases
• Engine efficiency drops

The intercooler cools compressed air before it enters the engine, helping maximize power and efficiency.

Direct-Fit OE Replacement

The A-Premium intercooler is designed as a direct replacement for the factory charge-air cooler.

Benefits include:

• OEM-style fitment
• Factory mounting locations
• No fabrication required
• Compatible with stock charge pipes

This makes it ideal for restoring factory performance.

[A-Premium Intercooler – Buy with Confidence]: Our meticulously crafted A-Premium compatible with Silverado 2500 HD Intercooler is sponsored by a one-year unlimited-mileage guarantee.

All-Aluminum Construction

Core Material

• Aluminum

Tank Material

• Aluminum

Advantages include:

• Excellent heat transfer
• Improved durability
• Corrosion resistance
• Better resistance to boost pressure

Compared to plastic end tank designs, aluminum construction offers enhanced long-term reliability.

Intercooler Specifications

Dimensions

• Length: 28.19 inches
• Width: 16.38 inches
• Thickness: 1.19 inches

Air Connections

• Inlet: 2.56 inches
• Outlet: 1.94 inches

These dimensions closely match factory specifications for proper fitment and airflow.

Restores Factory Cooling Performance

A damaged intercooler can cause:

• Reduced boost pressure
• Poor throttle response
• Increased exhaust gas temperatures
• Lower towing performance

Replacing the intercooler helps restore:

• Proper turbocharger efficiency
• Consistent intake temperatures
• Factory horsepower
• Reliable operation

Ideal for Towing Applications

The L5P Duramax is often used for:

Fifth-Wheel Towing

Maintains cooling performance under sustained load.

Equipment Hauling

Supports consistent boost delivery.

Commercial Truck Use

Reduces thermal stress during daily operation.

Long-Distance Travel

Helps maintain power and efficiency on steep grades.

Common Signs of a Failing Intercooler

You may need replacement if you notice:

Boost Leaks

Loss of pressure reduces turbo efficiency.

Reduced Power

Acceleration may feel sluggish.

Higher EGTs

Exhaust temperatures can rise under load.

Oil Residue Around Connections

May indicate leakage in the charge-air system.

Damaged Cooling Fins

Road debris can reduce cooling effectiveness.

Supports Stock and Mildly Modified Duramax Builds

This intercooler works well with common upgrades such as:

• ECM tuning
• Intake systems
• Exhaust upgrades
• Boost tube upgrades

For extreme horsepower builds, larger performance intercoolers may offer additional cooling capacity.

OE Reference Numbers

This intercooler references:

• 44011216
• 6079
• 23208446

Always cross-reference part numbers before ordering.

Installation Considerations

Before installation:

• Inspect charge pipes
• Check intercooler boots
• Replace worn clamps
• Verify surrounding turbo plumbing

Replacing aging boots during installation can help prevent future boost leaks.

Pros and Cons

Pros

• Fits 2017-2019 Silverado and Sierra HD Duramax models
• All-aluminum construction
• Direct-fit installation
• Restores factory cooling efficiency
• Excellent towing application
• Cost-effective replacement option

Cons

• Primarily designed as an OE replacement
• Not intended for extreme competition builds
• Front-end disassembly required
• Fitment should always be verified

Frequently Asked Questions

Does this fit the L5P Duramax?

Yes. It is designed for 2017-2019 L5P-equipped Silverado and Sierra HD trucks.

Is this a performance intercooler?

No. It is primarily an OE-style replacement designed to restore factory cooling performance.

Will it help towing?

A properly functioning intercooler helps maintain power, boost pressure, and cooling efficiency while towing.

Why are aluminum end tanks beneficial?

Aluminum provides greater durability and resistance to boost pressure compared to many plastic end tank designs.

Final Thoughts

The A-Premium Turbocharger Intercooler is an excellent replacement solution for 2017-2019 Chevrolet Silverado HD and GMC Sierra HD owners equipped with the 6.6L L5P Duramax. With all-aluminum construction, OEM-style fitment, and dependable cooling performance, it helps restore the efficiency and reliability that heavy-duty diesel truck owners depend on every day.

Because when your Duramax is pulling a trailer the size of a small neighborhood, every degree of cooler intake air counts.