One Stop Solutions 2831 Radiator

OE-Style Radiator for Hyundai and Kia

One Stop Solutions Part Number 2831 is a premium replacement radiator built for OE form and function. It is engineered for direct-fit service on select Hyundai Azera and Sonata models, plus Kia Magentis and Optima applications, with a crossflow design and integrated transmission oil cooler.

• Fits 2006-2011 Hyundai Azera
• Fits 2006-2010 Hyundai Sonata
• Fits 2007-2010 Kia Magentis
• Fits 2008 Kia Optima, OLD BODY STYLE
• Fits 2007 Kia Optima
• Fits 2006 Kia Optima, NEW BODY STYLE

Key Features

• Premium aluminum core construction with plastic tanks
• Crossflow radiator design with one-row core
• Integrated concentric transmission oil cooler
• Core dimensions: 25 in. height, 18 13/16 in. width, 7/8 in. thickness
• Inlet and outlet diameters: 1 3/8 in.
• Die-cut gasket design for leak resistance
• Individually pressure tested during production
• Factory-style fitment with matched header dimensions and mounting geometry

Detailed Description

OSC Premium New Automotive Radiator Part Number 2831 is built to match original equipment form and function for Hyundai Azera, Hyundai Sonata, Kia Magentis, and Kia Optima applications. The radiator uses premium-grade aluminum construction with plastic tanks and cadmium-plated tubes to help resist premature failure. It also includes a concentric transmission oil cooler where originally equipped, supporting proper fluid temperature control in daily driving and stop-and-go conditions.

This radiator is engineered with a drop-in fit and factory-spec component placement, including fitted and torqued assemblies for consistent installation. OSC also uses a die-cut gasket to help maintain a secure seal, and each unit is pressure tested multiple times during production. Part Number 2831 is a practical OE-style replacement for drivers servicing a Hyundai Sonata radiator, Hyundai Azera radiator, or Kia Optima radiator application.

This part cross-references Spectra Premium CU2831 and Four Seasons 56581 for the same application.

Common Problems This Radiator Can Address

• Coolant leaks from a cracked or aging radiator tank
• Overheating caused by restricted or inefficient heat transfer
• Transmission fluid temperature concerns in radiator-equipped cooling systems
• Fitment issues from a damaged or previously repaired radiator
• Reduced cooling performance in higher-mileage Hyundai and Kia vehicles

Installation Notes and Tips

Verify core dimensions, inlet and outlet size, and transmission cooler connection spacing before installation. This radiator is designed for direct replacement in the listed Hyundai and Kia applications, but the vehicle should be checked for body style notes, especially on 2006-2008 Kia Optima models. Flush the cooling system, inspect hoses and clamps, and confirm all connections are clean before filling and bleeding the system.

Quality Assurance

OSC states that each radiator is tested during production, including cooler testing before tank installation, core testing before assembly, and a final test after assembly. The design also incorporates engineering updates aimed at improving durability and cooling performance in higher-mileage vehicles.