One Stop Solutions 13579 Radiator

Radiator for Toyota Yaris and Scion iA

This One Stop Solutions radiator, part number 13579, is built for direct replacement in select Toyota Yaris, Toyota Yaris iA, and Scion iA applications. It focuses on OE-style fitment, stable cooling performance, and a straightforward install for daily-driven vehicles.

Key Features

• Hassle-free installation with drop-in fit, form, and function
• OE performance and consistent cooling quality
• Engineering updates for improved heat control and longer service life
• Factory-spec fitted and torqued components
• Premium tubes, fins, headers, tanks, and related radiator components for added durability
• Core thickness: 16 mm (5/8 in.)
• Core material: PA
• No engine oil cooler, no transmission oil cooler, and no cap included

Detailed Description

Part number 13579 is a replacement radiator engineered for 2018-2020 Toyota Yaris, 2017-2018 Toyota Yaris iA, and 2016 Scion iA models. It is built around a 16 mm core with PA core material and is configured without integrated engine oil or transmission oil cooling. The design emphasizes factory-style fitment and cooling consistency for vehicles that need a direct radiator replacement.

One Stop Solutions uses upgraded internal construction details to address common wear points found in higher-mileage cooling systems. The radiator is assembled with components fitted to factory specifications, and the design includes added fin density and thicker core construction to support heat rejection and service life. This part cross-references Spectra Premium CU13579 for the same application.

What This Radiator Helps Address

• Overheating caused by a worn or restricted radiator core
• Coolant leaks from aging tanks, seams, or core damage
• Reduced cooling efficiency from clogged or deteriorated internal passages
• Temperature instability in high-mileage Toyota Yaris and Scion iA cooling systems
• Fitment issues from a damaged or incorrect replacement radiator

Installation Notes and Tips

Fits 2018-2020 Toyota Yaris, N/A. Fits 2017-2018 Toyota Yaris iA, N/A. Fits 2016 Scion iA, N/A. Verify the vehicle’s cooling system configuration before installation, and transfer any required fittings or hardware from the original setup if applicable to the vehicle. Flush the cooling system, inspect hoses and clamps, and confirm proper coolant fill and bleed procedure after installation.

Quality Assurance

Complete radiators are tested up to three times during production. OSC checks the transmission and engine oil coolers before tank installation, tests the radiator core before assembly, and performs a final test on the completed unit. Part number 13579 is built to support consistent OE-style performance and durability in the listed applications.