CSF 3718 Radiator

Overview of CSF 1 Row Plastic Tank Aluminum Core Radiator

The CSF 1 Row Plastic Tank Aluminum Core Radiator (Part Number 3718) is engineered for select BMW models, including the 128i, 323i, 325Ci, 325i, 325xi, 328i, 328i xDrive, 328xi, 330Ci, 330i, 330xi, and Z4. Designed with a cross flow configuration, this radiator offers reliable cooling performance with a durable aluminum core and plastic tanks.

• Core thickness: 1 1/4 inches
• Core width: 17 5/8 inches
• Core length: 23 5/8 inches
• Aluminum core material for efficient heat dissipation
• Plastic tank construction for corrosion resistance
• Cross flow design for optimized coolant flow
• Inlet and outlet diameters: 1 1/2 inches (left inlet, right outlet)
• One core row configuration
• Cap not included

Details on the 1 Row Plastic Tank Aluminum Core Product Line

The CSF 1 Row Plastic Tank Aluminum Core product line combines an aluminum core with OE-style plastic tanks, providing a balance of lightweight construction and durability. This design supports efficient heat transfer while maintaining compatibility with original equipment specifications. The quick-connect inlet design simplifies installation and ensures a secure fit for the specified BMW models.

Product Description and Specifications

This radiator features a single-row aluminum core measuring 1 1/4 inches thick, 17 5/8 inches wide, and 23 5/8 inches long, optimized for effective cooling in BMW vehicles. The plastic tanks are designed to resist corrosion and reduce weight, while the cross flow configuration enhances coolant circulation. The inlet and outlet both measure 1 1/2 inches in diameter, positioned on the left and right sides respectively, facilitating straightforward hose connections. The radiator does not include a cap, so the existing cap from the vehicle should be reused.

Common Applications and Problem Resolution

• Replacement for leaking or damaged radiators in BMW 3 Series and Z4 models
• Addresses overheating issues caused by clogged or inefficient radiators
• Restores proper coolant flow with cross flow design
• Resolves corrosion-related failures in older plastic tank radiators
• Improves cooling system reliability after impact or wear

Installation Notes and Tips

• Compatible with BMW 128i, 323i, 325Ci, 325i, 325xi, 328i, 328i xDrive, 328xi, 330Ci, 330i, 330xi, and Z4 models
• Ensure the existing radiator cap is retained as it is not included
• Check hose diameters to match 1 1/2 inch inlet and outlet connections
• Verify cross flow orientation during installation for optimal performance
• Use OEM-style quick-connect fittings for secure hose attachment

Quality Assurance and Warranty

The CSF 1 Row Plastic Tank Aluminum Core Radiator (Part Number 3718) is manufactured to meet OEM standards for fit and function. The aluminum core and plastic tank construction provide durability and corrosion resistance. While specific warranty details are not provided, CSF products typically adhere to industry quality controls to ensure reliable operation in compatible BMW vehicles.