One Stop Solutions 13611 Radiator

Radiator for Lexus GS300 and RC300

This One Stop Solutions radiator, part number 13611, is built for direct replacement in select Lexus applications. It is engineered for OE performance, stable cooling, and a clean drop-in fit for the 2016-2024 Lexus GS200t, GS300, RC200t, and RC300.

Key Features

• Hassle-free installation with a form, fit, and function profile matched to factory specifications
• OE-level performance with engineering updates for improved cooling and service life
• Premium tubes, fins, headers, tanks, and related components for added durability
• Core design uses PA material and a 26 mm core thickness
• No engine oil cooler, no transmission oil cooler, and no radiator cap included
• Factory-torqued components and fitted assemblies for consistent installation quality
• Complete radiator assembly is tested during production before final release

Detailed Description

One Stop Solutions 13611 is a replacement radiator designed for Lexus GS300 and Lexus RC300 cooling system service, along with related GS200t and RC200t applications. The radiator is built with engineering changes aimed at addressing common wear points in higher-mileage vehicles, including improved fin density and a thicker core for better heat rejection. This makes it a practical choice when replacing a leaking, restricted, or damaged main radiator on compatible Lexus models.

This part cross-references Spectra Premium CU13611 for the same application. The 13611 radiator is also associated with Lexus GS300 and Lexus RC300 fitment, making it a direct-reference option for owners searching by vehicle or part number.

What It Helps Address

• Coolant leaks from a cracked or corroded radiator tank or core
• Overheating caused by reduced heat transfer through an aging radiator
• Cooling performance loss from internal blockage or damaged fins
• Fitment issues when replacing an original radiator with a direct OE-style unit
• Service concerns on higher-mileage Lexus GS300 and RC300 cooling systems

Installation Notes and Tips

Fits 2018-2024 Lexus RC300, N/A, Main Radiator. Fits 2019 Lexus GS300, N/A, Main Radiator. Fits 2018 Lexus GS300, N/A. Fits 2016-2017 Lexus GS200t, N/A. Fits 2016-2017 Lexus RC200t, N/A.

Before installation, verify radiator hose routing, mounting points, and cooler connections against the original unit. Flush the cooling system if contamination or debris is present, and inspect hoses, clamps, and the thermostat while the system is open. Confirm that the replacement radiator matches the vehicle’s original configuration before final assembly.

Quality Assurance

OSC radiators are tested multiple times during production, including checks of the engine and transmission cooler circuits before tank installation, a core test before assembly, and a final test after assembly. Components are fitted and torqued to factory specifications to support consistent quality and dependable cooling performance.