Denso 221-3123 Radiator

Denso Radiator for Lexus SC400

Restore proper engine cooling with the Denso 221-3123 radiator, built for 1992-1997 Lexus SC400 applications. This radiator is engineered to match OE-style dimensions and cooling requirements, with an integrated transmission oil cooler and 1.5000-inch inlet and outlet connections for a direct-fit replacement.

For Lexus SC400 owners searching for a radiator replacement that aligns with factory specifications, Denso 221-3123 offers the fitment and cooling layout needed for dependable operation. It is a practical choice for a Lexus SC400 radiator replacement when the original unit is leaking, restricted, or no longer maintaining stable temperatures.

Key Features

• Direct-fit radiator for 1992-1997 Lexus SC400
• Part number 221-3123
• Core height: 16.7500 in.
• Core width: 29.0620 in.
• Core thickness: 1.0000 in.
• Transmission oil cooler included
• 1.5000 in. inlet and outlet diameters
• Built to OE-style configuration, tank, fin pitch, core dimension, and material standards

Detailed Description

Denso supplies radiators to OE vehicle manufacturers worldwide, and the 221-3123 radiator reflects that OE-focused engineering approach. The core dimensions, tank design, fin pitch, and materials are selected to meet rigid manufacturer standards, helping maintain consistent coolant flow and heat transfer in the Lexus SC400 cooling system. This radiator is intended for drivers who need a replacement that matches the original cooling layout and supports stable engine temperature control.

This part cross-references Spectra Premium CU1306 and CSF 2060 for the same application. If you are comparing Lexus SC400 radiator options, Denso 221-3123 is a strong OE-style reference point for 1992-1997 Lexus SC400 cooling system service.

What This Radiator Helps Address

• Coolant leaks from a damaged or corroded radiator
• Overheating caused by reduced heat dissipation
• Restricted coolant flow from internal buildup or age-related wear
• Transmission cooling concerns when the factory cooler circuit is part of the system
• Temperature instability in a high-mileage Lexus SC400

Installation Notes and Tips

Verify inlet and outlet hose sizes before installation and inspect the cooling system for worn hoses, clamps, and thermostat issues at the same time. Flush the system if contamination or old coolant is present, and confirm the transmission cooler lines are properly connected when applicable. This radiator is compatible with 1992-1997 Lexus SC400 models.

Quality Assurance

Denso radiators are built using OE supplier experience and are subjected to durability and function testing before release. The 221-3123 is manufactured to support reliable cooling performance and fitment consistency for Lexus SC400 service.