Description
Restore your 2020-2021 GM 6.6L Duramax L5P cooling system to optimal performance with the CSF 3938 OEM-Style Replacement Auxiliary Radiator from RDP. Built to be a direct-fit, bolt-in replacement, this CSF radiator ensures a hassle-free repair with no modifications needed. The drop-in design works seamlessly with all stock components, including OEM hoses, brackets, and mounting points. It meets or exceeds the OE performance specifications of your factory Chevy Silverado or GMC Sierra 2500HD/3500HD radiator.
CSF is a recognized leader in automotive cooling solutions for both OE and the performance aftermarket. Each radiator is rigorously tested in their advanced in-house facility, which includes wind tunnel, burst pressure, vibration, thermal cycling, and salt spray corrosion testing. If any weaknesses are found in the OEM design or performance, CSF enhances it with stronger solutions to deliver class-leading durability and performance. Each radiator is individually pressure-tested, serial-number certified, and backed by a 1-year warranty.
Features:
- Auxiliary Radiator
- Drop-In Installation
- OE-Style Replacement
- Meets or Exceeds OE Specs
- Individually Pressure Tested
- Includes 1-Year Warranty
Specs:
Core Length (in): 37-5/8
Core Material: Aluminum
Core Thickness (in): 5/8
Core Width (in): 3
Cross-Flow/Down-flow: Cross Flow
Hazardous Material: No
No. Of Rows: 1
Radiator Cap Supplied: No
Tech Note: O.E.M. Style All Aluminum Design







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