OSC 99021 Automotive HVAC Heater Core

The OSC 99021 Heater Core is a premium replacement unit engineered to restore proper heating performance and cabin comfort in your vehicle. This technically advanced heater core is constructed from premium-grade aluminum for superior durability and heat transfer efficiency.

Key Features:

• Premium-grade aluminum construction for optimal thermal conductivity
• Cadmium-plated tubes inside and out to prevent premature failure
• Individually pressure tested to ensure leak-free operation
• Direct-fit design matching original equipment specifications
• Includes all necessary foam and installation accessories
• Engineered for reliable heat transfer and efficient coolant flow

This heater core is designed to meet or exceed OE manufacturer specifications while providing the durability needed for high-mileage vehicles and extreme conditions. The aluminum construction serves as a direct replacement for copper-designed heater cores, offering improved longevity and performance. Ideal for restoring factory heating efficiency, defrosting capability, and overall HVAC system function.