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CSF 3736 Radiator
| Brand | CSF 3736 |
|---|---|
| Core Thickness | 5/8 |
| Core Width | 14 1/2 |
| Core Material | Aluminum |
| Tank Material | Plastic |
| Core Length | 21 11/16 |
| Inlet Diameter | 1 3/8 left |
| Outlet Diameter | 1 3/8right |
| Down Flow Or Cross Flow Type | Cross flow |
| Radiator Core Row Quantity | 1 |
| Cap Included | No |
| Box Height (in) | 4 7/8 |
| Box Length (in) | 31 5/8 |
| Box Weight (lbs) | 7 |
| Box Width (in) | 20 13/16 |
| Hazardous Material | No |
| Inlet Length (in) | 15 1/4 |
| Inlet Width (in) | 1 |
| Oil Cooler (in) | 11 1/2 (high-efficiency plate type) |
| Outlet Length (in) | 15 1/4 |
| Outlet Width (in) | 1 5/8 |
| Tech Note | O.e.m. style plastic tanks & aluminum core;with quick-connect oil |
| Product line | 1 Row Plastic Tank Aluminum Core |
| Fits | Chevrolet · 7 vehicles |
OE-style design. Plastic tanks and an aluminum core match the original layout.
Cross-flow radiator. Engineered for efficient coolant flow and cooling performance.
Quick-connect fittings. Includes oil cooler connections for easier installation.
Cross-references APDI 8013247, BBB Industries 13247 and Spectra Premium CU13247 for the same application. See all 6.
CSF 3736 Radiator for Chevrolet Sonic
CSF 3736 is an OE-style radiator built with a plastic tank and aluminum core for the 2012-2018 Chevrolet Sonic. It is designed for direct replacement service where proper cooling performance, factory-style fitment, and reliable hose and cooler connections matter.
Key Features
- Fits 2012-2018 Chevrolet Sonic
- 1-row cross flow radiator design
- Plastic tank and aluminum core construction
- Core thickness: 5/8 in.
- Core dimensions: 14 1/2 in. wide x 21 11/16 in. long
- 1 3/8 in. left inlet and 1 3/8 in. right outlet
- High-efficiency plate-type oil cooler with quick-connect fittings
- OE-style layout for factory-style replacement service
- Part number: 3736
Product Details
This CSF radiator is part of the brand’s 1 Row Plastic Tank Aluminum Core line, which focuses on OE-style replacement radiators with the construction and layout needed for everyday cooling system service. CSF manufactures a wide range of radiator applications and validates designs through engineering and airflow testing to support consistent thermal performance. For Chevrolet Sonic radiator replacement needs, CSF 3736 provides the correct cross flow configuration, integrated oil cooler, and factory-style tank and core materials.
This part cross-references Spectra Premium CU13247 and APDI 8013247 for the same application.
Common Cooling System Issues Addressed
- Leaking radiator tanks or core seams
- Restricted coolant flow from an aging radiator
- Transmission or oil cooler connection concerns at the radiator
- Overheating caused by reduced heat transfer efficiency
- Fitment problems from non-OE-style replacement parts
Installation Notes and Tips
Verify inlet and outlet orientation before installation: this unit uses a 1 3/8 in. left inlet and 1 3/8 in. right outlet. The radiator does not include a cap. Confirm hose routing, cooler line connection style, and mounting points against the original unit before final assembly. For Chevrolet Sonic cooling system repair, matching the OE-style layout helps reduce installation issues and supports proper system operation.
Quality Assurance
CSF states that its factories are ISO/TSO certified and that its radiators are engineered for performance validation. The brand has supplied radiators worldwide for decades and manufactures a broad catalog of applications for leading vehicle platforms.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2018 | Chevrolet | Sonic | 1.8L | L4 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
| 2017 | Chevrolet | Sonic | 1.8L | L4 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
| 2016 | Chevrolet | Sonic | 1.8L | L4 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
| 2015 | Chevrolet | Sonic | 1.8L | L4 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
| 2014 | Chevrolet | Sonic | 1.8L | L4 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
| 2013 | Chevrolet | Sonic | 1.8L | L4 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
| 2012 | Chevrolet | Sonic | 1.8L | L4 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
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