One Stop Solutions 13449 Radiator

Radiator for Toyota Highlander 2014-2019

This One Stop Solutions radiator, part number 13449, is built for direct replacement service on the Toyota Highlander. It combines a plastic tank design with a PA core and integrated transmission oil cooler to support dependable engine temperature control and transmission fluid cooling.

Key Features

• Fits 2014-2019 Toyota Highlander, N/A
• Fits 2014-2016 Toyota Highlander, N/A, w/TOW
• Core height: 20 11/16; core width: 29 7/16; core thickness: 5/8
• Downflow radiator design with 1-row core construction
• Plastic tank construction with PA core material
• Integrated plated transmission oil cooler included
• Inlet and outlet diameters: 1 3/8
• Part number 13449

Detailed Description

Part number 13449 is a replacement radiator engineered for the Toyota Highlander platform with direct-fit dimensions and OE-style layout. The radiator uses a downflow configuration, 1-row core, and integrated transmission oil cooler to support stable cooling performance in daily driving and towing applications. With a core height of 20 11/16 inches, core width of 29 7/16 inches, and 5/8-inch core thickness, this unit is sized for the listed Highlander applications and built for straightforward service replacement.

One Stop Solutions radiators are assembled with fitted and torqued components to factory specifications, and the design includes engineering updates aimed at improving cooling efficiency and service life. This part cross-references Spectra Premium CU13449 and Koyorad A13449 for the same application.

Common Problems This Radiator Can Address

• Coolant leaks from an aging radiator tank or core
• Overheating caused by restricted or weakened cooling passages
• Transmission fluid temperature concerns tied to a failing cooler circuit
• Reduced cooling performance in higher-mileage Toyota Highlander vehicles
• Fitment issues from a damaged or previously repaired radiator assembly

Installation Notes and Tips

Verify inlet and outlet hose sizes, cooler line routing, and mounting points before installation. This radiator is a direct replacement for the listed Toyota Highlander applications, including 2014-2016 models with tow package coverage. Cap is not included. Confirm the vehicle’s cooling system is clean and inspect hoses, clamps, and related components during replacement to help prevent repeat leaks or overheating.

Quality Assurance

OSC tests the transmission and engine oil coolers before tank installation, tests the radiator core before assembly, and tests the completed unit again after assembly. The design also incorporates added fins per inch, thicker core construction, and a larger transmission cooler to address heat load in higher-mileage vehicles.