Denso 221-3108 Radiator

Denso Radiator 221-3108 Overview

The Denso 221-3108 radiator is built for direct replacement cooling performance in select Toyota Corolla and Geo Prizm applications. It combines OE-style fitment with a transmission oil cooler and core dimensions that match the vehicle’s cooling system requirements.

• Core height: 13.6870
• Core width: 27.1870
• Core thickness: 1.0000
• Inlet diameter: 1.2500
• Outlet diameter: 1.2500
• Transmission oil cooler included: yes

OE-Style Cooling Construction

Denso radiators are engineered from the company’s OE supply experience, with radiator configurations, tanks, fin pitch, core dimensions, and materials built to meet original manufacturer standards. Part number 221-3108 is designed to support stable engine temperature control and consistent heat rejection in daily driving and demanding conditions. This radiator cross-references Spectra Premium CU1409 for the same application.

Vehicle Fitment

• Fits 1993-1997 Geo Prizm, N/A
• Fits 1993-1997 Toyota Corolla, N/A

Common Cooling Problems It Can Address

• Leaking radiator tanks or core seams
• Restricted coolant flow from an aging radiator
• Overheating caused by reduced heat transfer
• Transmission fluid temperature concerns in radiator-cooled systems
• Fitment issues from a damaged or incorrect replacement radiator

Installation Notes

Verify inlet and outlet hose sizes, core dimensions, and transmission cooler line connections before installation. Flush the cooling system, inspect hoses and clamps, and confirm proper coolant fill and air bleeding after replacement. For Toyota Corolla and Geo Prizm radiator replacement, match the vehicle year and cooling configuration to the listed fitment before installation.

Quality Assurance

Denso radiators pass durability and function testing to help ensure reliable operation and proper fitment. The 221-3108 is built to OE-level dimensional standards for consistent cooling performance in the listed Toyota Corolla and Geo Prizm applications.