CSF 3555 Radiator

OE-Style Cooling for Scion iQ

The CSF 3555 radiator is an OE-style replacement built with a 1-row aluminum core and plastic tanks for the 2012-2015 Scion iQ. It is engineered for direct-fit cooling performance with left-side inlet and right-side outlet connections.

CSF’s 1 Row Plastic Tank Aluminum Core line focuses on factory-style radiator construction for straightforward replacement in everyday cooling system service. The CSF 3555 follows that approach with a down-flow layout and dimensions matched to the application.

Key Features

• Part number: 3555
• Fits 2012-2015 Scion iQ
• 1-row radiator core
• Aluminum core with plastic tanks
• Down-flow design
• Inlet diameter: 1 1/4 left
• Outlet diameter: 1 1/4 right
• Core thickness: 5/8 in.
• OE-style plastic tank and aluminum core construction

Detailed Description

The CSF 3555 radiator is designed for drivers needing a direct replacement radiator for the Scion iQ. With a 15 5/8 in. core width, 14 3/4 in. core length, and 5/8 in. core thickness, this radiator is built around factory-style dimensions and a down-flow configuration. The aluminum core helps transfer heat efficiently, while the plastic tanks match the original equipment style used in the vehicle’s cooling system.

CSF manufactures a wide range of radiators for major vehicle applications and validates cooling performance through laboratory wind tunnel testing. This part cross-references TYC 13263 for the same application.

What This Radiator Helps Address

• Overheating caused by a leaking or restricted radiator
• Coolant loss from cracked or aged plastic tanks
• Reduced cooling efficiency from a damaged core
• Temperature instability during stop-and-go driving
• Replacement needs after corrosion or physical impact

Installation Notes and Tips

Verify inlet and outlet orientation before installation: this unit uses a left inlet and right outlet. Confirm all hose connections, mounting points, and cooling system dimensions against the original radiator before service. Inspect the radiator cap separately, as a cap is not included.

Quality Assurance

CSF states that its factories are ISO/TSO certified and that its radiators are engineered to high-performance standards. The brand also notes long-term global production experience and performance validation testing during development.