CSF 3777 Radiator

Overview of CSF Radiator Part Number 3777

The CSF radiator 3777 is designed specifically for select Audi and Volkswagen models, including the A3 Quattro, CC, Eos, Golf, Jetta, Passat, Passat CC, and TT Quattro. Engineered with an aluminum core and plastic tanks, this radiator offers reliable cooling performance tailored to these vehicles.

• Core thickness: 1 1/4 inches
• Core width: 17 inches
• Core length: 25 9/16 inches
• Aluminum core material with plastic tanks
• Cross flow design for efficient heat dissipation
• Inlet and outlet diameter: 1 1/4 inches (left side)
• Single-row radiator core
• Quick-connect inlet for ease of installation
• Box dimensions: 31 5/8" length, 21" width, 4 7/8" height
• Box weight: 11 lbs

Detailed Product Description

The CSF radiator 3777 features an aluminum core measuring 1 1/4 inches thick, 17 inches wide, and 25 9/16 inches long, providing a durable and efficient cooling surface. The plastic tanks are designed in an OEM style, ensuring compatibility and fitment with the specified Audi and Volkswagen models. This radiator uses a cross flow design, which promotes effective coolant flow and heat exchange. Both the inlet and outlet have a diameter of 1 1/4 inches located on the left side, facilitating straightforward hose connections. The single-row core construction balances cooling capacity with compact size, suitable for the engine bays of the compatible vehicles.

Compatible Vehicles and Applications

• Audi A3 Quattro
• Volkswagen CC
• Volkswagen Eos
• Volkswagen Golf
• Volkswagen Jetta
• Volkswagen Passat
• Volkswagen Passat CC
• Volkswagen TT Quattro

This radiator is intended to replace factory units that have experienced leaks, overheating, or reduced cooling efficiency.

Common Issues Addressed by CSF Radiator 3777

• Engine overheating due to radiator core damage or clogging
• Coolant leaks from cracked or worn plastic tanks
• Reduced cooling performance from corrosion or buildup
• Failure of OEM radiator causing engine temperature fluctuations
• Damaged inlet/outlet connections affecting coolant flow

Installation Notes and Tips

Installation of the CSF radiator 3777 should be performed by a qualified technician familiar with Audi and Volkswagen cooling systems. The radiator includes quick-connect inlets to simplify hose attachment. Ensure all coolant is properly drained before removal of the old radiator. Verify that inlet and outlet hose diameters match the vehicle’s specifications. After installation, refill the cooling system with the recommended coolant and bleed air pockets to prevent overheating.

Quality Assurance and Warranty

CSF radiators are manufactured to meet OEM specifications, using high-quality aluminum cores and durable plastic tanks. While this radiator does not include a cap, it is designed for direct replacement of factory units. CSF provides a limited warranty covering defects in materials and workmanship, ensuring reliable performance for the intended vehicle applications.