CSF 3928 Radiator

OE-Style Radiator for Heavy-Duty GM Trucks

CSF 3928 is an OE-style radiator built for 2020-2026 Chevrolet Silverado 2500 HD and Silverado 3500 HD, as well as 2020-2026 GMC Sierra 2500 HD and Sierra 3500 HD applications. It uses an aluminum core with plastic tanks and a cross-flow layout to match the factory-style cooling package on these heavy-duty trucks.

Key Features

• Aluminum core with plastic tank construction
• Cross-flow design with 2-row core layout
• Core thickness: 2 1/16 in.
• Core dimensions: 34 1/2 in. length and 30 5/8 in. width
• Inlet: 2 in. left; outlet: 2 1/4 in. right
• High-efficiency plate-type oil cooler, 11 1/2 in.
• OE-style plastic tank and aluminum core with quick-connect outlet pipe and quick-connect oil cooler fittings
• Cap not included

Detailed Description

CSF part number 3928 is engineered as a direct-fit radiator for late-model Chevrolet Silverado 2500 HD and 3500 HD, plus GMC Sierra 2500 HD and 3500 HD trucks. The radiator follows an OEM-style layout with a cross-flow aluminum core, plastic tanks, and factory-style connection points to support proper coolant routing and heat transfer in standard radiator applications. CSF states its radiators are built to high-performance standards, with engineering validation that includes wind tunnel testing and broad manufacturing coverage across many vehicle platforms.

This part cross-references GM3010626 and 84708306 for the same application.

What This Radiator Helps Address

• Overheating caused by a worn or restricted radiator core
• Coolant leaks from aging plastic tanks or connection points
• Reduced cooling efficiency in towing or heavy-load driving
• Damaged quick-connect fittings or oil cooler interfaces
• Factory radiator replacement needs on Silverado and Sierra HD trucks

Installation Notes and Tips

Verify inlet and outlet orientation before installation: inlet is on the left and outlet is on the right. Confirm the vehicle uses the standard radiator configuration and compare the original radiator dimensions, oil cooler connection style, and hose routing before removal. Transfer any required sensors or related components from the original assembly if applicable to the vehicle.

Quality Assurance

CSF manufactures radiators to ISO/TSO-certified factory standards and validates cooling performance during development. Part number 3928 is built for consistent OE-style fitment on 2020-2026 Chevrolet Silverado 2500 HD and Silverado 3500 HD, plus 2020-2026 GMC Sierra 2500 HD and Sierra 3500 HD models.