ACDelco 85056548 OE GM Heater Inlet Hose

The ACDelco 85056548 is an OE-replacement heater inlet hose designed to meet original equipment specifications for select GM vehicles. This coolant hose routes engine coolant from the engine into the heater core, playing a critical role in the cabin heating system and overall engine cooling circuit.

As a genuine ACDelco component, this hose is manufactured to the same standards as the factory-installed part, ensuring a proper fit and reliable sealing without modification. It is constructed from heat- and pressure-resistant rubber compounds designed to withstand the thermal cycling and chemical exposure inherent in automotive cooling systems.

Key Features:

• OE-quality replacement heater inlet hose
• Designed to meet original GM fit, form, and function specifications
• Resistant to coolant, heat, and engine bay pressure fluctuations
• Direct drop-in replacement — no cutting or modification required
• Manufactured under ACDelco's quality control standards

This hose is an ideal choice for restoring proper heater performance and cooling system integrity on applicable GM vehicles. Always inspect hose clamps and the heater core inlet fitting at the time of replacement.