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CSF 3647 Radiator
| Brand | CSF 3647 |
|---|---|
| Box Height (in) | 5 14/16 |
| Box Length (in) | 29 7/16 |
| Box Weight (lbs) | 11 |
| Box Width (in) | 25 1/8 |
| Cap Included | No |
| Core Length | 23 5/8 |
| Core Material | Aluminum |
| Core Thickness | 7/8 |
| Core Width | 21 11/16 |
| Down Flow Or Cross Flow Type | Cross Flow |
| Hazardous Material | No |
| Inlet Diameter | 1 1/2 Left |
| Inlet Length (in) | 22 1/16 |
| Inlet Width (in) | 1 5/8 |
| Outlet Diameter | 1 1/2 Centre |
| Outlet Length (in) | 22 1/16 |
| Outlet Width (in) | 1 5/8 |
| Radiator Core Row Quantity | 1 |
| Tank Material | Plastic |
| Tech Note | O.E.M. style Plastic tanks & Aluminum core;with quick-connect inlet & outlet pipe. |
| Fits | BMW · 2 vehicles |
OE-style replacement. Plastic tanks and an aluminum core match the original design.
Cross-flow design. Promotes efficient coolant flow through the radiator core.
Quick-connect inlet and outlet pipes simplify installation.
Cross-references BBB Industries 13371, 17 11 8 623 366 and BM3010177 for the same application. See all 3.
CSF 3647 Radiator for BMW X3
The CSF 3647 radiator is an OE-style cooling replacement for the 2011-2012 BMW X3. It uses an aluminum core with plastic tanks and quick-connect inlet and outlet pipe connections to match the original layout.
- Fits 2011-2012 BMW X3, N/A
- Cross flow radiator design
- Aluminum core with plastic tanks
- 1-row core construction
- Core thickness: 7/8 in.
- Inlet diameter: 1 1/2 in., left
- Outlet diameter: 1 1/2 in., center
- OEM-style plastic tanks and aluminum core with quick-connect inlet and outlet pipe
Detailed Product Overview
Built for the BMW X3 cooling system, CSF part number 3647 is engineered as a direct-fit radiator replacement with the same cross flow layout and connection style used in the original application. The aluminum core supports efficient heat transfer, while the plastic tank construction follows the OE-style design commonly used on modern passenger vehicles. CSF designs and validates its radiators for cooling performance, and the brand has supplied radiators worldwide for decades across a broad range of vehicle applications. This part cross-references BBB Industries 13371 for the same application.
Common Cooling System Issues Addressed
- Coolant leaks from a damaged radiator tank or core
- Overheating caused by restricted or inefficient heat dissipation
- Cracked or aged plastic end tanks
- Failed inlet or outlet connection points
- Reduced cooling performance in BMW X3 2011-2012 applications
Installation Notes and Tips
Verify inlet and outlet orientation before installation: this radiator uses a left-side inlet and center outlet configuration. Confirm the core dimensions and quick-connect pipe style match the original BMW X3 radiator before removal of the old unit. Inspect hoses, clamps, and coolant condition during replacement, and refill the system with the correct coolant specification after installation.
Quality Assurance
CSF manufactures radiators to high-performance standards and tests designs for cooling performance validation. The company operates ISO/TSO-certified factories and has extensive radiator manufacturing experience across thousands of vehicle-specific applications.
| Year | Make | Model | Submodel | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2012 | BMW | X3 | xDrive28i | 3.0L | L6 | N/A | — |
| 2011 | BMW | X3 | xDrive28i | 3.0L | L6 | N/A | — |
| No rows match your filter. | |||||||