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CSF 3178 Radiator
| Brand | CSF 3178 |
|---|---|
| Core Thickness | 1 5/8 |
| Core Width | 23 9/16 |
| Core Material | Aluminum |
| Tank Material | Plastic |
| Core Length | 23 1/4 |
| Inlet Diameter | 1 9/16 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) | 5 14/16 |
| Box Length (in) | 29 7/16 |
| Box Weight (lbs) | 13 |
| Box Width (in) | 26 7/8 |
| Hazardous Material | No |
| Inlet Length (in) | 24 5/16 |
| Inlet Width (in) | 1 15/16 |
| Outlet Length (in) | 24 5/16 |
| Outlet Width (in) | 1 15/16 |
| Tech Note | O.e.m. style plastic tanks & aluminum core;with quick-connect inl |
| Product line | 1 Row Plastic Tank Aluminum Core |
| Fits | BMW · 12 vehicles |
OE-style design. Plastic tanks and an aluminum core match the original radiator layout.
Cross-flow construction. Promotes efficient coolant flow for consistent cooling performance.
Quick-connect pipes. Simplify hose attachment for a cleaner, faster install.
Cross-references Anchor 2625, AP Exhaust 2593 and Spectra Premium CU2593 for the same application. See all 7.
CSF 3178 Radiator for BMW X5
The CSF 3178 is an OE-style radiator built for 2000-2006 BMW X5 applications. It uses a 1-row aluminum core with plastic tanks and quick-connect inlet and outlet pipes to match the factory-style cooling layout.
CSF’s radiator line is engineered to high performance standards and validated through laboratory wind tunnel testing. With broad OE-style coverage and long-running manufacturing experience, CSF 3178 is built for direct replacement use on the BMW X5 platform.
Key Features
- 1-row cross-flow radiator design
- Aluminum core with plastic tanks
- Core thickness: 1 5/8 in.
- Core size: 23 9/16 in. wide x 23 1/4 in. long
- Inlet diameter: 1 9/16 in., left side
- Outlet diameter: 1 9/16 in., right side
- OE-style plastic tank and aluminum core construction
- Quick-connect inlet and outlet pipe design
- No radiator cap included
Product Details
CSF Part Number 3178 is a cross-flow radiator designed for the BMW X5 with factory-style fitment and cooling geometry. The aluminum core helps transfer heat efficiently, while the plastic tank construction follows the original equipment layout for the 2000-2006 BMW X5. This radiator is intended for drivers replacing a leaking, clogged, or damaged cooling unit and looking for an OE-style solution that matches the vehicle’s original inlet and outlet configuration. CSF 3178 is also referenced against Spectra Premium CU2593 and CU2594 for the same application.
Common Cooling Issues This Radiator Can Address
- Coolant leaks from cracked or aged radiator tanks
- Restricted coolant flow from internal buildup or corrosion
- Overheating caused by reduced heat dissipation
- Damaged inlet or outlet connections
- Cooling system failure after impact or road debris damage
Installation Notes and Tips
Verify the inlet and outlet orientation before installation, since this unit uses a left inlet and right outlet layout. Confirm radiator dimensions and hose connection style against the original BMW X5 radiator before removal. Because this design uses quick-connect inlet and outlet pipes, inspect the mating connections and seals during service to ensure proper sealing and coolant flow. CSF Part Number 3178 is listed for 2000-2006 BMW X5 models with N/A position fitment.
Quality Assurance
CSF manufactures radiators in ISO/TSO-certified facilities and has supplied cooling products worldwide for more than 50 years. The brand reports over 30 million radiators sold and uses laboratory wind tunnel testing to validate cooling performance across its product range.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2006 | BMW | X5 | 4.4L | V8 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
| 2006 | BMW | X5 | 4.8L | V8 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
| 2005 | BMW | X5 | 4.4L | V8 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
| 2005 | BMW | X5 | 4.8L | V8 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
| 2004 | BMW | X5 | 4.4L | V8 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
| 2004 | BMW | X5 | 4.8L | V8 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
| 2003 | BMW | X5 | 4.6L | V8 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
| 2003 | BMW | X5 | 4.4L | V8 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
| 2002 | BMW | X5 | 4.4L | V8 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
| 2002 | BMW | X5 | 4.6L | V8 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
| 2001 | BMW | X5 | 4.4L | V8 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
| 2000 | BMW | X5 | 4.4L | V8 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
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