CSF 3646 Radiator

Overview of CSF Radiator 3646 for BMW X3 and X4

The CSF Radiator part number 3646 is designed specifically for BMW X3 and X4 models, providing reliable cooling performance. Engineered with an aluminum core and plastic tanks, this radiator supports efficient heat dissipation to maintain optimal engine temperature.

• Core Thickness: 1 1/4 inches
• Core Width: 15 5/16 inches
• Core Length: 23 5/8 inches
• Core Material: Aluminum
• Tank Material: Plastic with OEM style quick-connect inlets
• Inlet Diameter: 1 1/2 inches (left side)
• Outlet Diameter: 1 1/2 inches (right side)
• Cross flow design with a single radiator core row
• Cap not included

Detailed Product Description

The CSF 3646 radiator features a cross flow design that enhances coolant flow efficiency, suitable for BMW X3 and X4 vehicles. Its aluminum core ensures effective heat transfer while the plastic tanks are manufactured to OEM specifications, including quick-connect inlets for straightforward installation. The radiator core measures 1 1/4 inches thick, 15 5/16 inches wide, and 23 5/8 inches long, providing ample surface area for cooling. Both inlet and outlet diameters are 1 1/2 inches, positioned on the left and right sides respectively, matching factory configurations for direct replacement.

Applications and Common Issues Addressed

• Overheating due to radiator core damage or clogging
• Coolant leaks from cracked or worn plastic tanks
• Reduced cooling efficiency from corrosion or buildup
• Replacement of OEM radiator in BMW X3 and X4 models
• Maintaining proper engine temperature under heavy load or extreme conditions

Installation Notes and Tips

When installing the CSF radiator 3646, ensure compatibility with your BMW X3 or X4 model year and engine type. The radiator features OEM style plastic tanks with quick-connect inlets, which simplifies hose connections. It is recommended to inspect and replace any worn hoses or clamps during installation. Since the radiator cap is not included, reuse the existing cap or source a compatible replacement. Properly bleed the cooling system after installation to avoid air pockets.

Quality Assurance and Warranty

CSF radiators are manufactured to meet OEM standards, using high-quality aluminum cores and durable plastic tanks. This radiator is free from hazardous materials and weighs approximately 9 pounds, ensuring ease of handling. While specific warranty details are not provided, CSF products typically adhere to industry quality controls to ensure reliable performance and durability in BMW X3 and X4 vehicles.