Global Parts 8221240 HVAC Heater Control Valve

HVAC Heater Control Valve Overview

Global Parts 8221240 is a manual HVAC heater control valve used in the vehicle’s heating and cooling system. It helps regulate coolant flow to the heater core, supporting consistent cabin heat in applications that use a manual valve setup. This part number 8221240 is a practical replacement for service work on select vehicle heating systems.

Key Features

• Manual operation type for direct coolant flow control
• Inlet diameter: 19.05 mm
• Inlet length: 22.225 mm
• Outlet length: 19.05 mm
• Used in HVAC heater control valve applications
• Cross-references Four Seasons 84707 and UAC HV1012C for the same application

Detailed Description

Global Parts 8221240 is built for HVAC temperature control systems that rely on a manual heater valve to manage coolant routing through the heater core. In vehicles such as Honda Civic and related make/model applications, this type of valve helps control how much heated coolant reaches the cabin heater circuit, which directly affects interior temperature output. The part number 8221240 is also referenced in service catalogs under multiple interchange numbers for broader lookup support.

Heater core and coolant-routing components work together with the radiator, engine block, thermostat housing, and water outlets to move coolant through the system. When the valve does not open or close correctly, cabin heat performance can become inconsistent. Global Parts 8221240 provides the specified inlet and outlet dimensions for a manual replacement in the correct HVAC heater control valve application.

Common Issues This Part Can Address

• Weak or inconsistent cabin heat
• Coolant flow not reaching the heater core correctly
• Manual heater valve sticking or failing to operate smoothly
• Temperature control problems in the HVAC system
• Leakage at the heater valve connection points

Installation Notes and Tips

Verify inlet and outlet dimensions before installation to confirm the correct hose and connection fitment. Match the manual operation style to the original valve design, and inspect surrounding coolant hoses and clamps during service. For vehicle-specific lookup, confirm the application against the exact make/model listing for Honda Civic and other supported vehicles before replacement.

Quality Assurance

Global Parts 8221240 is cataloged as an HVAC heater control valve with published dimensional specifications and interchange references to support accurate parts matching. Use the part number 8221240 and the vehicle application details together when verifying replacement selection for Honda Civic and related HVAC service needs.