Description

Replace the damaged or leaking primary radiator in your 2020-2023 GM 6.6L Duramax L5P with the CSF 3928 OEM-Style Replacement Primary Radiator from RDP. Designed using top-quality materials, this radiator offers the best aftermarket OE replacement available for your Chevy Silverado or GMC Sierra 2500HD/3500HD. Built to OEM specifications, it provides a true drop-in fit that ensures the same performance as your original radiator.

CSF is a recognized leader in automotive cooling for both OE and performance aftermarket solutions. Each radiator design undergoes rigorous testing in CSF’s state-of-the-art facility, which includes wind tunnel, burst pressure, vibration, thermal cycling, and salt spray corrosion tests. Any weaknesses identified in the OEM design are addressed with stronger solutions to deliver top-tier performance and durability. Each radiator is pressure-tested individually, serial-number certified, and comes with a 1-year warranty for added peace of mind.

Features:

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

Specs:

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