ProParts 9171503 HVAC Heater Core

The ProParts 9171503 is an aftermarket heater core designed as a direct replacement for Volvo applications. This critical HVAC component functions as a small radiator-like heat exchanger located within the vehicle's dashboard, transferring heat from the engine's cooling system to warm the cabin air.

How It Works:

The heater core consists of fin-covered metal coils connected to inlet and outlet hoses that allow hot engine coolant to flow through the core. As the blower motor pushes air through the heater core fins, the air is heated by the hot coolant circulating through the coils, then directed through the climate control vents to provide comfortable cabin heating.

Key Features:

• Aftermarket replacement heater core manufactured to OEM specifications
• Cross-references to Volvo OEM part number 87431503
• Manufactured in Denmark by Professional Parts Sweden (ProParts)
• Direct fit replacement requiring no modifications
• Includes necessary inlet and outlet connections

Installation Notes:

Installation typically requires (2) O-rings (part number 8693268) and (2) clips (part number 30767252), sold separately. Due to the heater core's location behind the dashboard, replacement can be labor-intensive and may require removal of the dashboard or access through panels under the dash or on the firewall. Professional installation is recommended.

Signs of Heater Core Failure:

• Coolant leaking into the passenger compartment
• Sweet smell inside the cabin
• Foggy windows or film on the inside of windshield
• Little to no heat from climate control vents when engine is warm
• Engine overheating due to coolant loss

ProParts is known for merging quality with excellent value, offering cost-effective aftermarket solutions for European vehicle owners. Some ProParts components are even contracted by manufacturers for use within their dealer networks.