Denso 221-4409 Radiator

Denso Radiator for Nissan Quest

The Denso 221-4409 radiator is an OE-style cooling replacement built for 2004-2006 Nissan Quest models. It is specified with a 17.7500-inch core height, 28.9370-inch core width, and 1.0000-inch core thickness, plus 1.4370-inch inlet and outlet diameters for direct hose connection.

Key Features

• Fits 2004-2006 Nissan Quest, N/A
• Transmission oil cooler included
• Core dimensions: 17.7500 in. height x 28.9370 in. width x 1.0000 in. thickness
• 1.4370 in. inlet and outlet diameters
• Denso part number 221-4409
• OE-focused radiator configuration for factory-style fitment

Detailed Description

Denso part number 221-4409 is a radiator engineered for the 2004-2006 Nissan Quest, with dimensions and materials selected to match OE requirements. Denso supplies radiators to vehicle manufacturers worldwide, and this unit reflects that OE development background through its core sizing, tank design, fin pitch, and durability testing. The integrated transmission oil cooler adds a factory-style cooling path for vehicles equipped with automatic transmission cooling through the radiator.

This radiator cross-references Spectra Premium CU2692 for the same application. If you are replacing a leaking, clogged, or damaged radiator on a Nissan Quest, this Denso radiator provides the correct fitment profile for the listed model years.

What It Helps Solve

• Engine overheating from restricted coolant flow
• Coolant leaks from a cracked or corroded radiator
• Transmission temperature issues related to radiator-based oil cooling
• Reduced cooling efficiency from worn core fins or internal blockage
• Fitment problems caused by using the wrong core size or hose connection diameter

Installation Notes and Tips

Verify the existing radiator dimensions and hose connection sizes before installation. Confirm that the vehicle is a 2004-2006 Nissan Quest and compare the transmission cooler routing to the original unit. Inspect upper and lower hoses, clamps, and coolant condition during replacement to help prevent repeat cooling-system issues.

Quality Assurance

Denso builds radiators to OE standards and subjects them to durability and function testing before release. That OE engineering focus supports consistent cooling performance, proper fitment, and dependable operation under demanding driving conditions.