Denso 221-9555 Radiator

Denso Radiator for Lexus LS460 and LS600h

The Denso 221-9555 radiator is built for direct-fit cooling performance on select Lexus luxury sedans. It combines OE-based design with precise core sizing, inlet and outlet dimensions, and durable materials to support stable engine temperature control.

Key Features

• Core height: 16.6929 in. for proper heat exchange capacity
• Core width: 27.7559 in. to match the OE cooling layout
• Core thickness: 0.6299 in. for balanced airflow and cooling efficiency
• Inlet diameter: 1.4961 in. and outlet diameter: 1.5276 in. for correct hose connection sizing
• OE-focused radiator configuration for fitment accuracy on Lexus LS460 and Lexus LS600h applications
• Part number 221-9555 for easy identification and ordering

Detailed Description

Denso 221-9555 is a replacement radiator engineered around OE manufacturer standards for configuration, tank design, fin pitch, core dimensions, and material selection. Denso supplies radiators to original equipment vehicle makers worldwide, and that OE experience is reflected in the fitment and thermal performance of this unit. For drivers searching for a radiator for 2011-2017 Lexus LS460 or a radiator for 2011-2016 Lexus LS600h, this part provides the dimensional accuracy needed for proper cooling system operation. The Denso 221-9555 radiator is a practical choice when replacing a worn, leaking, or restricted radiator in these Lexus models.

This part cross-references Spectra Premium CU13018 for the same application.

What This Radiator Helps Address

• Coolant leaks from a damaged or corroded radiator core or tank
• Overheating caused by reduced heat transfer efficiency
• Restricted coolant flow from internal buildup or age-related wear
• Fitment issues from an incorrect replacement radiator
• Cooling system service needs on Lexus LS460 and Lexus LS600h vehicles

Installation Notes and Tips

Verify hose connection sizes, core dimensions, and mounting points before installation. Inspect related cooling system components such as hoses, clamps, thermostat, and coolant condition so the new radiator can perform as intended. Proper bleeding of the cooling system after installation helps reduce trapped air and supports stable operating temperatures.

Quality Assurance

Denso states that its radiators undergo durability and function testing before release. The brand’s OE supply background and validation process support consistent fitment and dependable cooling performance for Lexus LS460 and Lexus LS600h applications.