CSF Heavy Duty Intercooler represents a significant enhancement for your 2006-2010 6.6L Turbo Diesel Silverado and Sierra HD models, combining superior engineering with robust construction to meet the demands of high-performance diesel applications. Designed specifically for heavy-duty use, this intercooler is built to withstand the rigorous conditions faced by Duramax engine owners who require reliable and efficient cooling under elevated boost pressures.
The intercooler features a heavy-duty bar & plate core construction, which provides a substantial increase in cooling surface area and volume compared to the original equipment manufacturer (OEM) tube & fin design. This translates into markedly improved heat dissipation and lower intake air temperatures (IATs), which are critical for maintaining engine performance, efficiency, and longevity. The core thickness of 1.625 inches (41mm) and a length of 20.5 inches (521mm) ensure optimal airflow and thermal management, while maintaining a precise fit within the vehicle’s engine bay.
Engineering Excellence and Durability
CSF has engineered this intercooler with a focus on durability and performance. The all-aluminum cast end tanks are pressure tested at 120 psi to guarantee maximum reliability in extreme boost environments. The 100% TIG welded construction enhances structural integrity, surpassing the brazed joints found in many OEM units. This meticulous manufacturing process ensures that the intercooler can endure the stresses of high boost levels without compromising its structural integrity or cooling efficiency.
The intercooler’s design also incorporates CSF’s proprietary thermal rejection powder coating, which improves heat dissipation by up to 15% compared to non-coated units. This coating not only enhances thermal performance but also provides a sleek, OEM+ aesthetic that complements the vehicle’s engine compartment.
Comparison: CSF Heavy Duty Intercooler vs. OEM
| Feature | CSF | OEM |
|---|---|---|
Core Type |
Bar & Plate |
Tube & Fin |
Core Thickness |
1.625 in (41mm) |
0.78 in (20mm) |
Core Height (tank to tank) |
36 in (914mm) |
36.71 in (932 mm) |
Core Length |
20.5 in (521mm) |
19.96 in (507mm) |
Core Material |
Aluminum |
Aluminum |
Tank Material |
Cast Aluminum |
Stamped Aluminum |
Design |
100% TIG Welded |
Brazed |
Key Features
- Heavy-duty bar & plate core construction for enhanced durability and cooling efficiency
- All-aluminum cast end tanks engineered for maximum strength and pressure resistance
- High-density internal and external fin design to maximize surface area contact and heat transfer
- “Drop-in” fitment ensures straightforward installation with no modifications required
- Pressure tested at 120 psi to guarantee reliability under extreme boost conditions
- Precise “Quick-Connect” inlet/outlet connections for secure OEM-style fitment
- Advanced thermal rejection powder coating for superior heat dissipation and a professional finish
Applications
| Year Range | Make | Chassis Code | Model | Trim | Engine / Trans / Etc | Notes |
|---|---|---|---|---|---|---|
| 2006-2010 | Chevrolet | - | Silverado 2500 HD | - | Turbocharged Diesel 6.6L V8 | - |
| 2007 | Chevrolet | - | Silverado 2500 HD Classic | - | Turbocharged Diesel 6.6L V8 | - |
| 2007 | Chevrolet | - | Silverado 3500 Classic | - | Turbocharged Diesel 6.6L V8 | - |
| 2007-2010 | Chevrolet | - | Silverado 3500 HD | - | Turbocharged Diesel 6.6L V8 | - |
| 2006-2010 | GMC | - | Sierra 2500 HD | - | Turbocharged Diesel 6.6L V8 | - |
| 2007 | GMC | - |
Unless explicitly stated otherwise, all products sold by R44 Performance Limited are designated RACE ONLY and are solely for competition or off-road use limited to racing formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, may violate local, state, and Federal laws. R44 Performance Limited does not implicitly or explicitly confirm the legality of using any products it sells on public roads; that is entirely the responsibility of the consumer.
It is the responsibility of the customer to check with all federal, state local and environmental laws before ordering and installing a product. R44 Performance Limited is not responsible for any fees, fines or costs that a customer may incur as a result of failing to check with federal, state, local or environmental laws before ordering and installing a product.
We get a large number of custom orders and requests everyday, so as a result it is not always possible for us to keep every item in stock at all times in our warehouse. If you require the item urgently please contact our sales team here to check the stock before you make your purchase.
We totally understand if you're not certain a part will be compatible with your car, so we highly recommend contacting us here with your query. Our friendly sales team will then be in touch to confirm if this part is the correct part you are looking for.
All in stock products ship the same day if ordered before 2pm GMT
For out of stock items we will contact you with an estimated wait time if not otherwise specified above.
We offer worldwide shipping on all products. If upon receiving your product you wish to return; we offer a 30-day returns policy. For our in-depth returns information please follow the link. "R44 Returns Policy
All of our products come with a standard warranty of 1-3 years. This is dependant on the type of product however. For more details please see our warranty page here.
PLEASE NOTE
- Orders with both in-stock and backorder or out-of-stock products will be dispatched once all products are available to ship together.
- Contact our sales team if you want your parts fitted to your vehicle at our London workshop.
- Shipping estimates are based on courier delivery times and don't include time to despatch from our warehouse.






