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CSF 3927 Radiator
| Brand | CSF 3927 |
|---|---|
| Core Thickness | 1 1/4 |
| Core Width | 23 3/8 |
| Core Material | Aluminum |
| Tank Material | Plastic |
| Core Length | 37 9/16 |
| Inlet Diameter | 1 5/16 left |
| Outlet Diameter | 1 1/2 right |
| Down Flow Or Cross Flow Type | Cross flow |
| Radiator Core Row Quantity | 1 |
| Cap Included | No |
| Box Height (in) | 7 1/16 |
| Box Length (in) | 48 |
| Box Weight (lbs) | 26 |
| Box Width (in) | 29 7/16 |
| Hazardous Material | No |
| Inlet Length (in) | 23 13/16 |
| Inlet Width (in) | 1 15/16 |
| Oil Cooler (in) | 11 1/2 left & right (high-effeciency plate type) |
| Outlet Length (in) | 23 13/16 |
| Outlet Width (in) | 2 7/16 |
| Tech Note | O.e.m. style plastic tank & aluminum core with quick-connect outl |
| Fits | Chevrolet and GMC · 8 vehicles |
OE-style design. Plastic tank and aluminum core construction with quick-connect fittings.
Cross-flow layout. Engineered for efficient cooling performance validation.
ISO/TSO certified. Built to high performance standards and sold worldwide for decades.
Cross-references BBB Industries 13885, 84565799 and GM3010625 for the same application. See all 3.
OE-Style Cooling for Heavy-Duty GM Trucks
CSF Radiator 3927 is an OE-style replacement radiator built for 2020-2021 Chevrolet Silverado 2500 HD and Silverado 3500 HD, as well as 2020-2021 GMC Sierra 2500 HD and Sierra 3500 HD. It uses an aluminum core with plastic tanks and a cross-flow design to match the factory layout and cooling package.
Key Features
- Aluminum core with plastic tanks for OE-style construction
- Cross-flow radiator design with a 1-row core
- Core thickness: 1 1/4 in.
- Core dimensions: 37 9/16 in. length x 23 3/8 in. width
- Inlet: 1 5/16 in. left; outlet: 1 1/2 in. right
- Integrated high-efficiency plate-type oil cooler on left and right
- Quick-connect outlet pipe and quick-connect oil cooler fittings
- No radiator cap included
Detailed Description
CSF part number 3927 is engineered for direct replacement use in heavy-duty Chevrolet Silverado 2500 HD and Silverado 3500 HD, plus GMC Sierra 2500 HD and Sierra 3500 HD applications from 2020-2021. The radiator follows an OE-style plastic tank and aluminum core layout, with cross-flow construction and factory-style connection points for the inlet, outlet, and oil cooler interfaces. CSF states its radiators are manufactured to high-performance standards, with design validation performed through wind tunnel testing and broad application coverage across many vehicle platforms. This part cross-references BBB Industries 13885 for the same application.
Common Cooling System Issues Addressed
- Leaking or cracked radiator tanks
- Restricted coolant flow from an aging core
- Transmission or engine cooling concerns tied to radiator wear
- Damaged quick-connect fittings or outlet pipe connections
- Heat management problems in heavy-duty towing and hauling use
Installation Notes and Tips
Verify inlet and outlet orientation before installation: inlet is left-side 1 5/16 in. and outlet is right-side 1 1/2 in. Confirm the vehicle uses the matching OE-style cooling configuration and oil cooler connections. Inspect hoses, clamps, and surrounding cooling components for wear before installing the new radiator. This radiator does not include a cap.
Quality Assurance
CSF manufactures radiators in ISO/TSO-certified facilities and validates cooling performance during development. Part number 3927 is built to OE-style specifications for the listed Chevrolet Silverado HD and GMC Sierra HD applications.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2021 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | N/A | OE style design ensures optimal fitment and performance. |
| 2021 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | N/A | OE style design ensures optimal fitment and performance. |
| 2021 | GMC | Sierra 2500 HD | 6.6L | V8 | N/A | OE style design ensures optimal fitment and performance. |
| 2021 | GMC | Sierra 3500 HD | 6.6L | V8 | N/A | OE style design ensures optimal fitment and performance. |
| 2020 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | N/A | OE style design ensures optimal fitment and performance. |
| 2020 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | N/A | OE style design ensures optimal fitment and performance. |
| 2020 | GMC | Sierra 2500 HD | 6.6L | V8 | N/A | OE style design ensures optimal fitment and performance. |
| 2020 | GMC | Sierra 3500 HD | 6.6L | V8 | N/A | OE style design ensures optimal fitment and performance. |
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