CSF 3776 Radiator

CSF 3776 Radiator for Toyota Sequoia and Tundra

CSF 3776 is an OE-style radiator built with an aluminum core and plastic tanks for direct replacement service on select Toyota trucks and SUVs. It is engineered for cooling performance validation and is a practical choice for Toyota Sequoia and Toyota Tundra applications that need a radiator matched to factory-style dimensions.

Key Features

• Aluminum core with plastic tank construction
• Down-flow radiator design
• 1-row core layout
• Core thickness: 1 1/4 in.
• Core width: 27 15/16 in.
• Core length: 25 9/16 in.
• Inlet diameter: 1 1/2 in., left
• Outlet diameter: 1 1/2 in., right
• OE-style plastic tanks and aluminum core
• CSF part number 3776

Detailed Description

CSF 3776 is designed for 2008-2022 Toyota Sequoia and 2010-2020 Toyota Tundra, with additional 2007-2009 Toyota Tundra coverage noted for OE-style design and use with a Micro, 16 psi cap. The radiator follows factory-style packaging with a down-flow layout, single-row core, and plastic tank construction to match the original cooling system configuration. CSF manufactures radiators to high-performance standards and validates cooling performance in laboratory wind tunnel testing, supporting consistent heat transfer and fitment-focused replacement service. This part cross-references Spectra Premium CU2993 and CU2994 for the same application.

What This Radiator Helps Address

• Overheating caused by a leaking or restricted radiator
• Coolant loss from cracked plastic tanks or aged seams
• Reduced cooling efficiency from a damaged core
• Factory-style replacement needs on Toyota Sequoia and Toyota Tundra
• Cooling system service after corrosion or internal blockage

Installation Notes and Tips

Verify inlet and outlet orientation before installation: inlet is 1 1/2 in. left and outlet is 1 1/2 in. right. This radiator does not include a cap; use the specified cap number 4514 where required, and follow the vehicle’s OE-style 16 psi cap note for 2007-2009 Toyota Tundra applications. Confirm radiator dimensions and mounting layout against the original unit before installation on Toyota Sequoia or Toyota Tundra models.

Quality Assurance

CSF radiators are manufactured in ISO/TSO-certified facilities and built to validated cooling-performance standards. The brand has supplied radiators worldwide for more than 50 years and offers a broad catalog of applications across major vehicle platforms.