Denso 221-3402 Radiator

Denso Radiator for Nissan Altima

The Denso 221-3402 radiator is built for 1993-1997 Nissan Altima applications and follows OE-style dimensions for proper cooling system fitment. With a 14.9380-inch core height, 27.1870-inch core width, and 1.0000-inch core thickness, it is sized to match the original radiator layout for the Altima platform.

This radiator includes a transmission oil cooler and uses 1.3750-inch inlet and outlet diameters. Denso’s OE supply experience is reflected in the radiator’s core design, tank configuration, fin pitch, and material selection, all built to meet strict durability and function standards.

Key Features

• Fits 1993-1997 Nissan Altima
• Part number: 221-3402
• Core height: 14.9380 in.
• Core width: 27.1870 in.
• Core thickness: 1.0000 in.
• Transmission oil cooler included
• Inlet diameter: 1.3750 in.
• Outlet diameter: 1.3750 in.

Detailed Description

Denso 221-3402 is a replacement radiator for Nissan Altima cooling system service where OE-style fitment and thermal performance matter. It is engineered around the original radiator dimensions and connection sizes to support proper coolant flow and heat exchange in 1993-1997 Nissan Altima models. This part cross-references Spectra Premium CU1573 for the same application.

As a radiator for the Nissan Altima, this unit is built to support engine temperature control and transmission fluid cooling through the integrated cooler. The Denso 221-3402 is a practical choice when replacing a leaking, clogged, or damaged radiator on the Altima platform.

Common Problems This Part Can Address

• Coolant leaks from a cracked or corroded radiator
• Overheating caused by restricted coolant flow
• Transmission fluid temperature issues related to radiator cooler failure
• Poor heat dissipation from damaged fins or internal blockage
• Fitment issues when replacing a worn original Nissan Altima radiator

Installation Notes and Tips

Verify inlet and outlet hose sizes before installation and inspect the cooling system for debris, hose wear, and old coolant residue. Flush the system if contamination is present, and confirm that the transmission cooler lines are clean and properly connected on Altima models equipped for this configuration. Always compare the old radiator to the new unit before final installation.

Quality Assurance

Denso supplies radiators to OE vehicle manufacturers worldwide, and this radiator is built using OE-based engineering standards for fit, function, and durability. Each unit is subjected to durability and function testing to support reliable performance in demanding driving conditions. Part number 221-3402 is engineered for 1993-1997 Nissan Altima cooling system service.