One Stop Solutions 265 Radiator

Radiator for Hyundai Sonata 1989-1991

Restore cooling performance with this OSC Premium New Automotive Radiator for the 1989-1991 Hyundai Sonata. Built for OES form and function, Part Number 265 is engineered for a direct replacement fit with the durability and cooling consistency needed for daily driving.

• Hassle-free installation with drop-in fit, form, and function
• O.E. performance and consistent cooling quality
• Premium aluminum construction with cadmium-plated tubes inside and out
• Die-cut gasket design helps reduce leak risk
• Factory-spec fitted and torqued components
• Enhanced core design for improved cooling and longer service life
• Individually pressure tested during production
• All necessary fittings or hardware are included in each unit

Detailed Product Overview

OSC Part Number 265 is a premium replacement radiator designed for the Hyundai Sonata 1989-1991 lineup. It uses premium-grade tubes, fins, headers, tanks, and related components to support reliable heat transfer and long-term durability. The radiator is engineered with multi-fit considerations while maintaining the original look and fit, making it a practical choice for a Hyundai Sonata radiator replacement when the factory unit is leaking, restricted, or no longer cooling efficiently.

This part cross-references Spectra Premium CU1189 for the same application.

Common Cooling System Issues

• Engine temperature running higher than normal
• Coolant leaks from the radiator tank, core, or gasket area
• Reduced cooling efficiency in stop-and-go driving
• Transmission cooler performance concerns tied to radiator wear
• Age-related failure in high-mileage Hyundai Sonata cooling systems

Installation Notes

Compatible With 1989-1991 Hyundai Sonata, N/A. Verify the vehicle’s cooling system layout and match the original radiator configuration before installation. OSC designs this radiator for a direct replacement application, and the included fittings or hardware support a cleaner install. For best results, inspect hoses, clamps, and coolant condition during radiator replacement.

Quality Assurance

Each radiator is pressure tested during production, with cooler testing performed before tank installation and again after final assembly. The core is also tested before assembly, giving this OSC radiator multiple inspection points before it leaves production. Part Number 265 is built to meet original-equipment-style cooler design requirements where applicable.