CSF 3209 Radiator

CSF 3209 Radiator Overview

The CSF 3209 is an OE-style radiator built with a 1-row aluminum core and plastic tanks for direct-fit cooling service. It is engineered for vehicles that use a down-flow layout with a top-tank sensor port, making it a practical replacement for import applications such as Nissan and Isuzu models that match this configuration.

CSF’s radiator line is built to high-performance standards and validated through laboratory wind-tunnel testing for cooling performance. With decades of manufacturing experience and a broad catalog of radiator designs, CSF focuses on consistent fit, thermal efficiency, and OE-style construction.

Key Features

• Part number: 3209
• 1-row radiator core design
• Aluminum core with plastic tanks
• Down-flow configuration
• Core thickness: 1 1/4 in.
• Core size: 23 1/8 in. wide x 24 7/16 in. long
• Inlet and outlet diameter: 1 1/2 in., left side
• Oil cooler: 14 3/8 in. high-efficiency plate type
• Sensor port on top tank
• OE-style tank and core construction

Detailed Description

CSF 3209 is a replacement radiator designed around OE-style dimensions and cooling layout. The aluminum core helps transfer heat efficiently, while the plastic tanks match the factory-style construction used on many Nissan and Isuzu radiator applications. The down-flow design, left-side inlet and outlet, and integrated sensor port on the top tank make this radiator a direct-match solution for vehicles that require these exact specifications. If you are searching for a radiator for Nissan or Isuzu cooling system service, CSF 3209 provides the dimensional and layout details needed for a proper replacement.

This part cross-references OE-style applications using part numbers 8-97333-140-0 and 8-97333-141-0 for the same application.

Common Problems This Radiator Can Address

• Coolant leaks from aging plastic tanks or core seams
• Restricted heat transfer from a worn or corroded radiator core
• Overheating caused by reduced cooling efficiency
• Fitment issues when replacing a radiator with the wrong down-flow layout
• Sensor-port mismatch on vehicles that require a top-tank sensor connection

Installation Notes and Tips

Verify core dimensions, inlet and outlet location, and down-flow configuration before installation. Confirm that the vehicle uses a top-tank sensor port and a left-side inlet/outlet arrangement. Inspect hoses, clamps, and the cooling fan system during replacement to help ensure proper operation after installation. For Nissan and Isuzu radiator replacement work, matching the OE-style layout is critical for correct fitment.

Quality Assurance

CSF manufactures radiators to ISO/TSO-certified standards and validates cooling performance through laboratory testing. The brand has supplied radiators worldwide for more than 50 years and produces a wide range of models for many vehicle platforms, including Nissan and Isuzu applications.