Nissens 646836 Radiator

Nissens Radiator 646836 Overview

The Nissens 646836 radiator is an aluminum replacement radiator built for thermal efficiency and dependable engine cooling. It is engineered for select Toyota Sienna and Lexus RX350 applications, including vehicles with specific towing-package exclusions noted in the fitment data.

Key Features

• Aluminum construction for efficient heat transfer
• Core dimensions: 30.1969 in. height, 17.7165 in. width, 0.6299 in. length
• Direct-fit radiator for select Toyota Sienna and Lexus RX350 models
• Developed by Nissens, a manufacturer focused on thermal and engine efficiency components
• Part number 646836 for accurate ordering and cross-reference matching

Detailed Description

Nissens 646836 is a radiator designed for vehicles that need a precise cooling-system replacement with aluminum core construction. The listed dimensions help confirm fitment during comparison with the original unit, while the application data covers 2010-2016 Toyota Sienna and 2010-2015 Lexus RX350 configurations, including Japan-built and towing-package-specific notes where stated. If you are replacing a radiator on a Toyota Sienna or Lexus RX350, this part number 646836 provides a focused match for the specified applications.

This part cross-references Spectra Premium CU13116 for the same application.

What This Radiator Helps Address

• Engine overheating caused by a worn or restricted radiator
• Coolant temperature instability during daily driving
• Reduced cooling performance from corrosion or internal blockage
• Leak-related coolant loss at the radiator core or tanks
• Cooling-system replacement needs on Toyota Sienna and Lexus RX350 models

Installation Notes and Tips

Verify radiator dimensions, hose connections, and vehicle build details before installation. Confirm whether the vehicle is Japan built and review towing-package exclusions for the exact year and model listed. Always inspect hoses, clamps, and coolant condition during radiator replacement, and refill the system with the correct coolant specification after installation.

Quality Assurance

Nissens develops and manufactures thermal management components to high quality standards, with product development aligned to changing aftermarket vehicle technology. The 646836 radiator reflects that focus on consistent fit and cooling-system performance for the listed applications.