CSF 3717 Radiator

Overview of CSF 1 Row Plastic Tank Aluminum Core Radiator

The CSF 1 Row Plastic Tank Aluminum Core Radiator (Part Number 3717) is engineered for select BMW models, including the 135i, 135is, 335i, 335is, 335i xDrive, 335xi, X1, and Z4. Designed to provide reliable cooling performance, this radiator features a durable aluminum core paired with plastic tanks for efficient heat dissipation and corrosion resistance.

• Core thickness: 1 1/4 inches
• Core width: 13 5/8 inches
• Core length: 23 5/8 inches
• Aluminum core material with plastic tanks
• Cross flow design for optimized coolant flow
• Inlet and outlet diameter: 1 1/2 inches (left inlet, right outlet)
• Single core row configuration
• Cap not included
• Box dimensions: 29 7/16" length, 17 1/16" width, 5 7/8" height
• Box weight: 8 lbs

Details on the 1 Row Plastic Tank Aluminum Core Product Line

The CSF 1 Row Plastic Tank Aluminum Core line combines an aluminum core with OEM-style plastic tanks, offering a balance of lightweight construction and durability. This product line is designed to meet original equipment specifications, featuring quick-connect inlet fittings for easier installation and maintenance. The single-row core design supports efficient heat exchange while maintaining a compact profile suitable for the specified BMW models.

Product Description and Specifications

This radiator utilizes a cross flow design, allowing coolant to pass horizontally through the aluminum core, which measures 1 1/4 inches thick, 13 5/8 inches wide, and 23 5/8 inches long. The plastic tanks on either side are engineered to withstand thermal cycling and resist corrosion. The inlet and outlet ports both measure 1 1/2 inches in diameter, positioned on the left and right sides respectively, facilitating compatibility with the vehicle's cooling system plumbing. The radiator does not include a cap, so the existing cap from the vehicle should be reused.

Applications and Common Issues Addressed

• Replacement for leaking or cracked radiators in BMW 135i, 335i, X1, and Z4 models
• Resolves overheating caused by clogged or damaged radiator cores
• Addresses coolant leaks from plastic tanks or core joints
• Improves cooling efficiency in vehicles with original equipment radiator failure
• Suitable for vehicles requiring a single-row radiator core configuration

Installation Notes and Tips

• Ensure compatibility with your specific BMW model and engine variant before installation
• Retain the original radiator cap as this product does not include one
• Inspect and replace any worn hoses or clamps during installation
• Bleed the cooling system properly after installation to prevent air pockets
• Use OEM-style quick-connect fittings for secure inlet and outlet connections

Quality Assurance and Warranty

The CSF 1 Row Plastic Tank Aluminum Core Radiator (Part Number 3717) is manufactured to meet OEM standards for fit, form, and function. It is constructed from corrosion-resistant aluminum and durable plastic materials to ensure longevity. While specific warranty details are not provided here, CSF products typically come with a limited warranty against manufacturing defects. Verify warranty terms with the supplier or manufacturer prior to purchase.