CSF 3798 Radiator

CSF 3798 Radiator for Heavy-Duty GM Trucks

The CSF 3798 is an OE-style radiator built for select Chevrolet Silverado 2500 HD and 3500 HD, plus GMC Sierra 2500 HD and 3500 HD applications from 2011-2019. It uses an aluminum core with plastic tanks and a cross-flow design to match the factory cooling layout on these heavy-duty trucks.

Key Features

• Aluminum core with plastic tanks for OE-style construction
• Cross-flow radiator design
• Single-row core configuration
• Core dimensions: 34 in. length, 22 3/4 in. width, 7/8 in. thickness
• Left inlet and right outlet layout
• Quick-connect outlet pipe and quick-connect oil cooler fittings
• High-efficiency plate-type oil cooler integrated into the radiator
• Cap not included

Detailed Description

CSF part number 3798 is engineered for direct replacement use in 2011-2019 Chevrolet Silverado 2500 HD, Chevrolet Silverado 3500 HD, GMC Sierra 2500 HD, and GMC Sierra 3500 HD trucks with quick-connect outlet pipe and oil cooler fittings. The radiator follows an OEM-style plastic tank and aluminum core design, with a cross-flow layout and single-row core to match the factory cooling system architecture. CSF manufactures radiators to high-performance standards and validates cooling performance through laboratory wind-tunnel testing. This part cross-references Spectra Premium CU13301 and Bosch 13301 for the same application.

Vehicle Fitment

• Fits 2011-2019 Chevrolet Silverado 2500 HD, w/ quick-connect outlet pipe & oil cooler fittings
• Fits 2011-2019 Chevrolet Silverado 3500 HD, w/ quick-connect outlet pipe & oil cooler fittings
• Fits 2011-2019 GMC Sierra 2500 HD, w/ quick-connect outlet pipe & oil cooler fittings
• Fits 2011-2019 GMC Sierra 3500 HD, w/ quick-connect outlet pipe & oil cooler fittings

Common Cooling System Issues Addressed

• Cracked or leaking radiator tanks
• Restricted coolant flow from an aging core
• Overheating caused by reduced heat transfer
• Failure of factory-style oil cooler connections
• Cooling system wear on high-mileage heavy-duty trucks

Installation Notes and Tips

Verify the vehicle uses the quick-connect outlet pipe and oil cooler fittings before ordering. Confirm inlet and outlet orientation, core dimensions, and mounting layout against the original radiator. Transfer any reusable components from the original cooling system as needed during installation, and inspect hoses, clamps, and coolant condition before returning the truck to service.

Quality Assurance

CSF radiators are manufactured in ISO/TSO-certified facilities and built to meet high-performance cooling standards. The brand has supplied radiators worldwide for more than 50 years and uses engineering validation methods, including wind-tunnel testing, to verify cooling performance.