One Stop Solutions 98761 HVAC Heater Core

OE-Style Heater Core Replacement

The One Stop Solutions 98761 HVAC heater core is built as a direct replacement for OE-style fit, form, and function. It is designed for 1995-2005 Chevrolet Cavalier and 1995-2005 Pontiac Sunfire applications, with premium aluminum construction for dependable heat transfer and long-term service.

Key Features

• Drop-in fit, form, and function for straightforward replacement
• Premium grade aluminum construction for added durability
• Cadmium-plated tubes inside and out to help resist premature failure
• Individually pressure tested before shipment
• Includes necessary foam and accessories for installation
• Built to address common original design failures in high-mileage vehicles
• Cycle, vibration, burst, and environmental testing used in development

Detailed Product Overview

Part number 98761 is an aluminum HVAC heater core engineered as a direct replacement for copper-style original units. It is designed to restore cabin heat performance in Chevrolet Cavalier and Pontiac Sunfire models while using materials and construction methods selected for durability in demanding daily driving conditions. This heater core cross-references Nissens 94761 for the same application.

Common Issues This Heater Core Can Address

• Weak or inconsistent cabin heat
• Coolant seepage from a failing heater core
• Restricted heat output caused by internal corrosion or blockage
• Premature failure in higher-mileage Chevrolet Cavalier and Pontiac Sunfire vehicles
• Leaks related to aging OE copper-style core construction

Installation Notes

Verify vehicle year and application before installation. This heater core is a direct replacement unit, and the included foam and accessories should be transferred or installed as required by the vehicle’s HVAC housing. Flush the cooling system and inspect hoses, clamps, and coolant condition before completing the repair. Part number 98761 is listed for 1995-2005 Chevrolet Cavalier and 1995-2005 Pontiac Sunfire models.

Quality Assurance

OSC Premium heater cores are individually pressure tested and built using premium aluminum materials. The design is validated through cycle, vibration, burst, and environmental testing to support consistent performance in service.