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CSF 3647 Radiator
Overview of CSF Radiator for BMW X3
The CSF radiator part number 3647 is designed specifically for BMW X3 models, providing reliable cooling performance. Featuring an aluminum core and plastic tanks, this radiator supports efficient heat dissipation to maintain optimal engine temperature.
- Core thickness: 7/8 inch
- Core width: 21 11/16 inches
- Core length: 23 5/8 inches
- Aluminum core material with plastic tanks
- Cross flow design for improved coolant flow
- Inlet diameter: 1 1/2 inch (left side)
- Outlet diameter: 1 1/2 inch (center)
- Single row radiator core
- OEM style quick-connect inlet
Detailed Product Description
This CSF radiator (part number 3647) is engineered to meet the cooling requirements of BMW X3 vehicles. The aluminum core ensures effective heat transfer, while the plastic tanks reduce weight without compromising durability. The cross flow design enhances coolant circulation, promoting consistent engine temperature control. With precise inlet and outlet diameters and lengths, this radiator integrates seamlessly with the vehicle's cooling system. The single core row configuration balances cooling efficiency and compact size, suitable for the BMW X3's engine bay.
Common Applications and Problem Solving
- Replaces leaking or cracked radiators in BMW X3 models
- Addresses overheating issues caused by inefficient cooling
- Resolves coolant flow restrictions due to damaged cores
- Restores proper engine temperature regulation
- Improves cooling system reliability after plastic tank failure
Installation Notes and Tips
When installing the CSF radiator 3647 on a BMW X3, ensure all hose connections match the specified inlet and outlet diameters (1 1/2 inch). Use OEM-style quick-connect fittings for secure attachment. Verify the radiator core dimensions fit within the engine bay clearance. It is recommended to inspect and replace coolant hoses and clamps during installation to prevent leaks. Properly bleed the cooling system after installation to avoid air pockets.
Quality Assurance and Warranty
CSF radiators are manufactured to OEM specifications, using high-quality aluminum cores and durable plastic tanks. Part number 3647 undergoes rigorous testing to ensure performance and reliability in BMW X3 vehicles. This radiator does not include a cap and is designed as a direct replacement part. Warranty coverage details should be confirmed with the distributor or manufacturer.
| Brand | CSF |
|---|---|
| Part Number | 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. |
This part fits 2 vehicles. Search below:
| 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 |
* 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.