One Stop Solutions 98774 HVAC Heater Core

Overview

OSC Premium Heater Core 98774 is a direct replacement HVAC heater core built to match original equipment form and function. It uses premium-grade aluminum construction and cadmium-plated tubes to help resist premature failure in demanding heating system service.

Compatible With Ford Thunderbird, Mercury Cougar, and Lincoln Mark VIII applications, this heater core is individually pressure tested and includes the foam and accessories needed for the unit. Part number 98774 is a practical choice for restoring cabin heat performance in vehicles with aging HVAC components.

Key Features

• Drop-in fit, form, and function for OE-style replacement.
• Premium aluminum construction for heater core service.
• Cadmium-plated tubes inside and out for added corrosion resistance.
• Individually pressure tested before release.
• Includes foam and accessories with the unit.

Detailed Description

OSC 98774 is engineered as a direct replacement for a copper-designed heater core, making it suitable for repair work where the original unit has leaked, restricted flow, or lost heating efficiency. The aluminum core construction and plated tubes are intended to address common failure points associated with older HVAC systems, while the pressure-tested design adds another layer of quality control. For buyers searching for a Ford Thunderbird heater core, Mercury Cougar heater core, or Lincoln Mark VIII heater core, 98774 provides an OE-style solution that follows the original form and function.

This part cross-references Remy 94774 for the same application.

Common Issues This Part Can Address

• Loss of cabin heat from a leaking heater core.
• Coolant odor or moisture inside the passenger compartment.
• Restricted heater performance from internal corrosion or blockage.
• Failure of an aging original copper-style core.
• HVAC service needs on high-mileage vehicles.

Installation Notes

Verify vehicle application by year, make, and model before installation. Inspect the HVAC case, coolant hoses, and related seals during replacement to reduce repeat labor. The included foam and accessories support a complete heater core service, and part number 98774 is built for direct replacement use in the listed applications.

Quality Assurance

OSC states that each heater core is individually pressure tested and manufactured from premium-grade aluminum. The tubes are cadmium plated inside and out to help prevent premature failure, and the design follows original equipment form and function.