Nissens 646866 Radiator

Nissens 646866 Radiator for Lexus RX330

The Nissens 646866 radiator is an aluminum cooling system replacement built for thermal efficiency and dependable engine temperature control. It is a direct-fit radiator for select Lexus RX330 applications, including Japan-built vehicles, with fitment for 2005 and 2006 models.

Key Features

• Aluminum construction for efficient heat transfer
• Direct-fit radiator for select Lexus RX330 applications
• Fits 2006 Lexus RX330, Japan Built Vehicle
• Fits 2005 Lexus RX330, Japan Built Vehicle (From 05/2005)
• Core dimensions: 18.8976 in. height, 25.5906 in. width, 0.8661 in. length
• Nissens part number 646866 for accurate ordering and catalog lookup

Detailed Description

Built by Nissens, a manufacturer focused on thermal and engine efficiency components, this radiator is developed to meet the demands of modern cooling systems. The aluminum core supports heat dissipation while maintaining the fitment profile needed for select Lexus RX330 vehicles. If you are replacing a worn or leaking radiator on a 2005 or 2006 Lexus RX330, part number 646866 provides a straightforward OE-style replacement path.

This part cross-references Bosch 13256 for the same application.

What It Helps Address

• Coolant leaks from a damaged or corroded radiator
• Engine overheating caused by restricted heat exchange
• Temperature instability from an aging cooling core
• Reduced cooling performance in a Lexus RX330 radiator replacement
• Fitment issues when replacing the original radiator on Japan-built RX330 models

Installation Notes and Tips

Verify the vehicle build origin before ordering, since fitment is listed for Japan-built Lexus RX330 models only. Confirm core dimensions and connection points against the original unit before installation. Inspect hoses, clamps, and coolant condition during radiator replacement to help complete the repair correctly.

Quality Assurance

Nissens develops and manufactures thermal management components with a focus on consistent aftermarket quality. Part number 646866 is backed by Nissens’ Genuine Nissens Quality standard across its product range.