CSF 3764 Drive Motor Inverter Cooler

OE-Style Inverter Cooler for Hybrid Cooling

CSF 3764 is an OE-style drive motor inverter cooler built with an aluminum core and plastic tanks for hybrid cooling systems. It is engineered for direct replacement use on select Lexus and Toyota hybrid applications, including the Lexus ES300h, Toyota Avalon Hybrid, and Toyota Camry Hybrid.

Key Features

• Aluminum core with plastic tanks for OE-style construction
• Cross-flow design with a single-row core
• Core dimensions: 26 5/16 in. length, 3 1/2 in. width, 7/8 in. thickness
• Inlet: 11/16 in. right; outlet: 11/16 in. center
• Cap not included
• CSF part number 3764

Detailed Description

CSF 3764 is a drive motor inverter cooler designed around OE-style plastic tanks and an aluminum core to match the factory layout used in select hybrid vehicles. The cross-flow configuration and compact core dimensions support proper thermal management in inverter cooling circuits, helping maintain stable operating temperatures in hybrid systems. CSF manufactures radiators and cooling components to high-performance standards, with ISO/TSO-certified factories and wind-tunnel validation used in product development. This part cross-references Carlson 13300 for the same application.

What It Helps Address

• Inverter cooling system leaks from aging plastic tank and core assemblies
• Reduced cooling efficiency in hybrid drive motor inverter circuits
• Fitment issues caused by damaged or warped OE-style cooler housings
• Temperature control concerns in Lexus ES300h, Toyota Avalon Hybrid, and Toyota Camry Hybrid applications

Installation Notes and Tips

Verify inlet and outlet orientation before installation, especially on the right-side inlet and center outlet layout. Confirm the OE-style mounting and hose connections match the vehicle before removal of the original cooler. This part is listed for 2012-2017 Toyota Camry Hybrid, 2013-2018 Toyota Avalon Hybrid, and 2013-2018 Lexus ES300h applications.

Quality Assurance

CSF builds cooling components to controlled manufacturing standards and validates designs for cooling performance. The brand has supplied radiators and related cooling products worldwide for more than 50 years, with extensive application coverage across major vehicle platforms. CSF 3764 is built as an OE-style replacement for the listed hybrid applications.