One Stop Solutions 2985 Radiator

Radiator for Mazda CX-9 Cooling Service

Restore cooling performance on the 2007-2015 Mazda CX-9 with this OSC Premium New Automotive Radiator, part number 2985. Built to OES form and function, it uses premium-grade aluminum construction with plastic tanks and a downflow layout for a direct replacement in the factory location.

Fits 2007-2015 Mazda CX-9, N/A, with 16" core and without tow package. Part number 2985 is engineered for a drop-in fit and is built to match the original cooler design where equipped.

Key Features

• Premium-grade aluminum radiator construction with plastic tanks
• Downflow design with 1-row core layout
• Transmission oil cooler included with concentric cooler design
• Core dimensions: 19 11/16" height, 29 3/8" width, 5/8" thickness
• Inlet and outlet diameters: 1 3/8"
• Engine oil cooler not included
• Factory-style fitment for Mazda CX-9 applications
• Part number 2985 is built for direct replacement service

Detailed Description

This OSC radiator is designed for Mazda CX-9 cooling system replacement where a 16" core and no tow package are specified. The unit uses premium aluminum tubes and a die-cut gasket to help maintain sealing integrity, while the concentric transmission oil cooler follows the original cooler style used in the application. OSC also pressure tests each radiator during production and uses engineering updates aimed at improving durability in higher-mileage vehicles. This part cross-references Koyorad A2985 and Spectra Premium CU2986 for the same application.

What It Helps Address

• Overheating caused by a worn or leaking radiator
• Transmission fluid temperature control concerns tied to the integrated cooler
• Coolant loss from tank, header, or gasket wear
• Reduced cooling efficiency from aged core fins and tubes
• Fitment issues from damaged or non-OE-style replacement radiators

Installation Notes and Tips

Verify the vehicle is a 2007-2015 Mazda CX-9 with a 16" core and without tow package before installation. Confirm inlet and outlet hose sizes, cooler line routing, and mounting points against the original radiator. Transfer any required vehicle-specific components from the original unit as needed, and inspect the cooling system for contamination, hose wear, and thermostat condition before refilling.

Quality Assurance

OSC tests the transmission and engine oil coolers before tank installation, tests the core before assembly, and tests the completed radiator again after assembly. The design also incorporates updates intended to address original failure points and improve service life.