Global Parts 8211345 HVAC Heater Control Valve
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Global Parts

Global Parts 8211345 HVAC Heater Control Valve

Brand Global Parts 8211345
Fits Acura · 6 vehicles

Heater control valve. Regulates coolant flow for consistent cabin heat.

HVAC component. Fits temperature control and related systems.

Cross-references Four Seasons 74005, 79700SD4A01  and 79700SD4A02  for the same application. See all 10.

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HVAC Heater Control Valve for Acura Legend

Global Parts 8211345 is an HVAC heater control valve for vacuum-operated heating systems. It is listed for 1986-1990 Acura Legend applications and supports coolant flow control for the heater circuit.

Key Features

  • Fits 1986-1990 Acura Legend, vacuum operated
  • Direct-fit HVAC heater control valve application
  • Supports coolant routing for heater core operation
  • Cross-references Four Seasons 74005 for the same application
  • Part number 8211345 for ordering and identification

Product Details

Global Parts 8211345 is used in the heating and cooling system to regulate coolant flow through the heater circuit. On Acura Legend models, the vacuum-operated design helps control heat delivery to the cabin by opening or closing coolant passage as commanded by the vehicle’s HVAC system. This part is relevant when servicing Acura Legend heater performance concerns and is listed for 1986, 1987, 1988, 1989, and 1990 model years. The part number 8211345 may also be used when searching for replacement HVAC heater control valve listings for Acura Legend vehicles.

Common Issues This Part May Address

  • No heat from the vents
  • Heat stuck on or stuck off
  • Coolant flow not reaching the heater core correctly
  • Vacuum-operated heater control malfunction
  • Temperature control response problems in the cabin

Installation Notes and Tips

Verify vacuum line routing and coolant hose connections before installation. Confirm the replacement valve matches the vehicle’s vacuum-operated configuration and compare the original part number 8211345 against the removed component. After installation, refill and bleed the cooling system as required by the vehicle service procedure to remove trapped air and restore proper heater operation.

Quality Assurance

Global Parts replacement components are cataloged for specific vehicle applications and cross-reference OE-style part numbers for identification. This part cross-references Four Seasons 74005 for the same application.

Related reading

This part fits 6 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
1990AcuraLegend2.7LV6N/AVacuum Operated
1989AcuraLegend2.7LV6N/AVacuum Operated
1988AcuraLegend2.7LV6N/AVacuum Operated
1987AcuraLegend2.5LV6N/AVacuum Operated
1987AcuraLegend2.7LV6N/AVacuum Operated
1986AcuraLegend2.5LV6N/AVacuum Operated
Directly replaces or cross-references 10 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Four Seasons — 7400579700SD4A01 79700SD4A02 79700SD4003 79700SD4013 80105613005221AHVH861HV1205OTH-1716