Replace the damaged or leaking primary radiator in your 2020-2023 GM 6.6L Duramax L5P with a CSF 3928 OEM Style Replacement Primary Radiator from SDS. The CSF OEM Style Replacement Radiator is manufactured from the highest quality components to provide you with the best aftermarket OE replacement radiator available for your Chevy Silverado or GMC Sierra 2500HD/3500HD. Each radiator is built to 0E specifications for a true Drop-in fit that matches the performance of your OE radiator.

CSF is an industry leader in automotive cooling for both 0E and the performance aftermarket. CSF tests every radiator design in-house with their state-of-the-art testing facility which includes wind tunnel, burst pressure testing, vibration testing, thermal cycle, and salt spray corrosion testing. When CSF identifies a weakness in either the OEM design or performance, a stronger solution is implemented for class-leading performance and durability. Individually pressure tested and serial # certified. Comes complete with a 1-year warranty.
 

Tech Note: 0.E.M. Style Plastic Tank & Aluminum Core with Quick-Connect Outlet Pipe & Oil Cooler Fittings

Applications:

2020-2023 Chevrolet Silverado 2500HD (6.6L Duramax)

2020-2023 Chevrolet Silverado 3500HD (6.6L Duramax)

2020-2023 GMC Sierra 2500HD (6.6L Duramax)

2020-2023 GMC Sierra 3500HD (6.6L Duramax)

• Primary Radiator
• Drop-In Installation
• OE-Style Replacement
• Meets or Exceeds OE Specs
• Individually Pressure Tested
• Includes 1-Year Warranty

• Bottom Hose Fitting (in): 2-1/4 Right
• Top Hose Fitting (in): 2 Left
• Core Length (in): 34-1/2
• Core Material: Aluminum
• Core Thickness (in): 2-1/16
• Core Width (in): 30-5/8
• Cross-Flow/ Down-flow: Cross Flow
• Hazardous Material: No
• Inlet Length (in): 31-5/16
• Inlet Width (in): 2-11/16
• No. Of Rows: 2
• Oil Cooler (in): 11-1/2 (High-Efficiency Plate Type)
• Outlet Length (in): 31-5/16
• Outlet Width (in): 2-11/16
• Radiator Cap Supplied: No
• Tank Material: Plastic