Denso 221-3705 Radiator

Denso 221-3705 Radiator for Hyundai Santa Fe

The Denso 221-3705 radiator is built for 2007-2009 Hyundai Santa Fe applications and follows OE-style dimensions for proper cooling system fitment. With an integrated transmission oil cooler and matched inlet and outlet sizing, it supports dependable heat transfer for daily driving and demanding conditions.

Key Features

• Fits 2007-2009 Hyundai Santa Fe
• Core dimensions: 17.1250 in. height, 29.6250 in. width, 0.6250 in. thickness
• Transmission oil cooler included
• 1.3750 in. inlet diameter and 1.3750 in. outlet diameter
• OE-focused radiator configuration for proper fitment and cooling performance
• Denso part number 221-3705

Detailed Description

Denso 221-3705 is a replacement radiator engineered for the 2007, 2008, and 2009 Hyundai Santa Fe. Denso supplies radiators to original equipment manufacturers worldwide, and this unit reflects that OE experience through its core size, tank configuration, fin pitch, and materials selected to meet strict manufacturer standards. The result is a radiator built for consistent engine temperature control and reliable operation in the Hyundai Santa Fe cooling system.

This radiator includes a transmission oil cooler, making it a direct-fit choice for vehicles that route automatic transmission fluid through the radiator assembly. If you are searching for a Hyundai Santa Fe radiator replacement, Denso 221-3705 provides the fitment and dimensions needed for a straightforward service repair.

This part cross-references Spectra Premium CU2997 for the same application.

What It Helps Solve

• Engine overheating caused by a leaking or restricted radiator
• Coolant loss from cracked tanks or damaged core passages
• Poor heat rejection from an aging Hyundai Santa Fe radiator
• Transmission fluid cooling concerns when the integrated cooler is failing
• Fitment issues from using a radiator with incorrect core dimensions

Installation Notes and Tips

Verify inlet and outlet hose sizes, mounting points, and transmission cooler line connections before installation. Flush the cooling system, inspect hoses and clamps, and confirm the fan assembly and thermostat are functioning correctly so the new radiator can operate as intended. For best results, compare the removed unit to Denso 221-3705 before final assembly.

Quality Assurance

Denso radiators are built using OE-level engineering and undergo durability and function testing before release. That manufacturing approach supports consistent fitment and dependable cooling performance for 2007-2009 Hyundai Santa Fe applications.