Denso 221-3711 Radiator

Denso Radiator for Hyundai Tucson and Kia Sportage

The Denso 221-3711 radiator is an OE-style cooling replacement built for 2005-2008 Kia Sportage and 2005-2006 Hyundai Tucson applications. It uses OE-based dimensions and materials to support proper engine temperature control, with an integrated transmission oil cooler for vehicles equipped with automatic transmission cooling needs.

Key Features

• Core height: 25.1870 in.
• Core width: 17.8750 in.
• Core thickness: 0.6250 in.
• Inlet diameter: 1.3750 in.
• Outlet diameter: 1.3750 in.
• Transmission oil cooler included
• Built to Denso OE configuration standards

Detailed Description

Denso part number 221-3711 is engineered as a direct-fit radiator for select Hyundai Tucson and Kia Sportage models. Denso supplies radiators to OE vehicle manufacturers worldwide, and this radiator follows the same focus on fitment, tank design, fin pitch, core dimensions, and material selection used in OE production. The result is a radiator designed to maintain stable coolant flow and heat transfer under everyday driving and demanding operating conditions. This part cross-references APDI 8012786 and Spectra Premium CU2786 for the same application.

For buyers searching for a 2005-2008 Kia Sportage radiator or a 2005-2006 Hyundai Tucson radiator, Denso 221-3711 provides the correct cooling-system layout for the listed vehicles. It is also a strong match for shoppers comparing OE replacement radiator options by part number 221-3711.

What This Radiator Helps Address

• Engine overheating caused by a failing or restricted radiator
• Coolant leaks from cracked tanks or worn core assemblies
• Reduced cooling efficiency from damaged fins or internal blockage
• Transmission fluid temperature control issues on equipped vehicles
• Fitment problems from using the wrong core size or hose connection diameter

Installation Notes and Tips

Verify radiator dimensions, inlet and outlet size, and transmission cooler connection requirements before installation. Confirm vehicle fitment by year and model: Fits 2005-2008 Kia Sportage, N/A; Fits 2005-2006 Hyundai Tucson, N/A, Exc. Halla Radiator. Inspect hoses, clamps, and coolant condition during replacement, and flush the cooling system if contamination or debris is present. Use the correct coolant specification for the vehicle and bleed air from the system after installation.

Quality Assurance

Denso radiators are built from OE-level design data and undergo durability and function testing before release. That manufacturing approach supports consistent cooling performance, reliable fitment, and dependable operation in the Hyundai Tucson and Kia Sportage applications listed for Denso 221-3711.