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CSF 3729 Radiator
CSF 3729 Radiator for Silverado 1500 and Sierra 1500
CSF 3729 is an OE-style radiator built with an aluminum core and plastic tanks for 2014-2018 Chevrolet Silverado 1500 and 2014-2018 GMC Sierra 1500 applications. It uses a cross-flow design with quick-connect oil cooler fittings and the correct inlet and outlet sizing for direct replacement service.
Key Features
- Aluminum core with plastic tank construction
- Cross-flow radiator design
- Single-row core configuration
- Quick-connect oil cooler fittings
- Inlet diameter: 1 5/16 left
- Outlet diameter: 1 9/16 right
- Fits 2014-2018 Chevrolet Silverado 1500 and 2014-2018 GMC Sierra 1500
- Part number: 3729
Detailed Description
CSF 3729 radiator is engineered for direct-fit cooling system replacement on the Chevrolet Silverado 1500 and GMC Sierra 1500. The aluminum core helps transfer heat efficiently, while the OE-style plastic tanks match the factory layout for a clean installation and proper hose and cooler connection alignment. CSF states its radiators are manufactured to high-performance standards and validated through wind-tunnel testing, with broad application coverage across many vehicle platforms. This part cross-references Bosch 13396 for the same application.
What This Radiator Helps Address
- Overheating caused by a leaking or restricted radiator
- Coolant loss from cracked tanks or aged core seams
- Reduced cooling efficiency in stop-and-go driving
- Transmission cooler connection issues at the radiator
- Fitment problems from an incorrect replacement radiator
Installation Notes and Tips
Verify radiator dimensions, inlet and outlet orientation, and oil cooler fitting style before installation. This radiator uses quick-connect oil cooler fittings and does not include a cap. Confirm the vehicle is a 2014-2018 Chevrolet Silverado 1500 or 2014-2018 GMC Sierra 1500 before ordering. Part number 3729 should be matched to the original radiator configuration for proper fitment.
Quality Assurance
CSF manufactures radiators in ISO/TSO-certified facilities and applies engineering validation to support consistent cooling performance. The brand has supplied radiators worldwide for decades and produces a wide range of OE-style replacement cooling components.
| Brand | CSF |
| Part Number | 3729 |
| Core Thickness | 7/8 |
| Core Width | 16 7/16 |
| Core Material | Aluminum |
| Tank Material | Plastic |
| Core Length | 34 |
| Inlet Diameter | 1 5/16 left |
| Outlet Diameter | 1 9/16 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) | 44 5/8 |
| Box Weight (lbs) | 18 |
| Box Width (in) | 22 9/16 |
| Hazardous Material | No |
| Inlet Length (in) | 17 3/16 |
| Inlet Width (in) | 1 15/16 |
| Oil Cooler (in) | 11 1/2 (high-efficiency plate type) ;11 1/2 (high-efficiency plat |
| Outlet Length (in) | 17 3/16 |
| Outlet Width (in) | 2 7/16 |
| Tech Note | O.e.m. style plastic tanks & aluminum core;with quick-connect oil |
This part fits 10 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2018 | Chevrolet | Silverado 1500 | 4.3L | V6 | N/A | |
| 2018 | GMC | Sierra 1500 | 4.3L | V6 | N/A | |
| 2017 | Chevrolet | Silverado 1500 | 4.3L | V6 | N/A | |
| 2017 | GMC | Sierra 1500 | 4.3L | V6 | N/A | |
| 2016 | Chevrolet | Silverado 1500 | 4.3L | V6 | N/A | |
| 2016 | GMC | Sierra 1500 | 4.3L | V6 | N/A | |
| 2015 | Chevrolet | Silverado 1500 | 4.3L | V6 | N/A | |
| 2015 | GMC | Sierra 1500 | 4.3L | V6 | N/A | |
| 2014 | Chevrolet | Silverado 1500 | 4.3L | V6 | N/A | |
| 2014 | GMC | Sierra 1500 | 4.3L | V6 | N/A |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.