ACDelco HVAC Heater Water Bypass Inlet Hose

The ACDelco HVAC Heater Water Bypass Inlet Hose line gives you replacement heater hoses (also called heater inlet hoses or coolant bypass hoses). These hoses carry engine coolant to and from the heater core and bypass circuit. That flow lets your HVAC system deliver cabin heat and helps keep coolant circulating properly.

Key Features:

• Carries hot coolant through the heater circuit to support cabin heating
• Built from heat-resistant, durable hose materials for long service life
• Made to meet expectations for fit, form, and function as a direct replacement
• Backed by ACDelco, a brand with a long history of supplying GM-affiliated parts

A worn heater hose can crack, leak, or collapse. This can cause coolant loss, weak cabin heat, and engine temperature problems. Replacing it with an ACDelco hose helps restore reliable coolant flow and dependable HVAC performance.