SKU: 3975 | UPC: 710353039755
CSF 20-24 Chevrolet Silverado 2500/3500 6.6L Radiator
The CSF 3975 radiator is a direct OE replacement for 2020-2024 Chevrolet Silverado 2500 HD 3500 HD and GMC Sierra 2500 HD 3500 HD trucks equipped with the 6.6L Duramax L5P diesel engine. Patented B-Tube technology increases coolant volume by 20% and improves thermal efficiency to maintain lower temperatures during towing hauling or heavy-duty operation. This full all-aluminum construction offers longer corrosion resistance than factory plastic tanks while ensuring precise OEM fitment.
Key Features
- All-Aluminum Design: Eliminates plastic tanks that crack under extreme heat and pressure for reliable performance in tough conditions.
- 42mm 2-Row Core: Dual-row thickness expands surface area for superior heat dissipation compared to stock single-row designs.
- B-Tube Technology: Patented oval tubes boost core volume by 20% and airflow efficiency by up to 15% without increasing weight.
- Direct Drop-In Fitment: OEM-spec dimensions and mounting points allow bolt-on installation with no modifications on GM HD trucks.
- 100% Leak Tested: Factory pressure tested to ensure defect-free operation right out of the box.
Product Notes
- Designed exclusively for 6.6L L5P Duramax diesel applications verify engine code before purchase.
- Flush cooling system thoroughly before install to remove contaminants and maximize performance.
- Ships in protective oversize box inspect upon arrival for any transit damage.
Installation Notes
- Professional installation recommended.
- Bolt-on design uses existing OEM brackets and hardware.
- Compatible with factory fan shroud thermostat and hoses.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2020-2024 | Chevrolet | Silverado 2500 HD | 6.6L L5P Diesel |
| 2020-2024 | Chevrolet | Silverado 3500 HD | 6.6L L5P Diesel |
| 2020-2024 | GMC | Sierra 2500 HD | 6.6L L5P Diesel |
| 2020-2024 | GMC | Sierra 3500 HD | 6.6L L5P Diesel |
Why Choose CSF?
- Over 35 years developing OE-quality cooling for automotive and racing sectors.
- Race-proven components trusted in demanding motorsports environments.
- Engineered in USA with precision TIG-welded assembly for exact specifications.
Frequently Asked Questions
- Q: Will this radiator fit my 2022 Silverado 3500HD Duramax?
A: Yes it provides exact OEM replacement fit for all 2020-2024 Silverado 2500 HD 3500 HD and Sierra 2500 HD 3500 HD models with 6.6L L5P Duramax diesel engine. - Q: Is this radiator made from aluminum?
A: Constructed entirely from high-grade aluminum including tanks cores and end tanks for corrosion resistance and heat transfer. - Q: What warranty coverage applies?
A: Covered by CSF limited lifetime warranty against manufacturing defects when installed and maintained properly.
Shipping & Handling
- Method: Ground shipping via UPS or FedEx
- Availability: In stock – ships same or next business day
- Packaging: Durable cardboard box 38 x 28 x 6 inches
- Weight: 28 lbs
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