CSF 3648 Radiator

Overview of CSF Radiator Part 3648 for BMW X5 and X6

The CSF radiator part number 3648 is designed specifically for BMW X5 and X6 models, providing reliable cooling performance. This radiator features an all-aluminum construction with OE style tanks and core, engineered to meet factory specifications.

• Core thickness: 1 5/8 inches
• Core width: 17 5/8 inches
• Core length: 23 1/4 inches
• Aluminum core and tank material for durability and heat dissipation
• Cross flow design with 2 core rows
• Inlet and outlet diameters: 1 1/2 inches (left inlet, right outlet)
• Quick-connect inlet and outlet with precise dimensions
• Box dimensions: 29 1/4" length, 20" width, 4 11/16" height
• Box weight: 11 lbs

About the OE Style All Aluminum Tanks & Core Product Line

The OE Style All Aluminum Tanks & Core line by CSF focuses on delivering radiators with original equipment manufacturer (OEM) style aluminum tanks and cores. This ensures compatibility and performance consistent with factory-installed radiators. The all-aluminum construction enhances heat transfer efficiency and corrosion resistance, making it suitable for demanding cooling requirements in BMW X5 and X6 vehicles.

Detailed Product Description

This CSF radiator (part number 3648) is engineered with a 2-row cross flow core design, measuring 1 5/8 inches thick, 17 5/8 inches wide, and 23 1/4 inches long. Both the core and tanks are made from aluminum, which provides effective heat dissipation and long-term durability. The radiator features a 1 1/2 inch diameter inlet on the left side and a 1 1/2 inch outlet on the right side, both designed with quick-connect fittings for straightforward installation. The precise dimensions and materials align with BMW's specifications for the X5 and X6 models, ensuring proper fitment and reliable cooling system performance.

Common Applications and Issues Addressed

• Replacement for leaking or damaged radiators in BMW X5 and X6
• Improves engine cooling efficiency to prevent overheating
• Restores proper coolant flow with OEM-style inlet and outlet connections
• Addresses corrosion or wear in original radiator components
• Supports vehicle performance under high thermal loads

Installation Notes and Tips

When installing the CSF radiator part 3648, ensure compatibility with your BMW X5 or X6 model year and engine configuration. The radiator does not include a cap, so reuse the existing cap or purchase separately. Use proper tools to connect the quick-connect inlet and outlet fittings securely. Verify coolant levels and system pressure after installation to confirm leak-free operation. It is recommended to inspect hoses and clamps during replacement to maintain system integrity.

Quality Assurance and Warranty

CSF radiators are manufactured to meet OEM standards with high-quality aluminum materials and precise construction. This radiator is free of hazardous materials and designed for durability and consistent performance. Warranty details should be confirmed with the distributor or manufacturer, as they may vary by region.