HomeHVAC > Temperature Controls and Related ComponentsFour Seasons 74623 HVAC Heater Control Valve
Part #: 74623

Four Seasons 74623 HVAC Heater Control Valve

Heater Valve
⚙️ 36 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Heater Valve
🚗Fitment: Acura and Honda, Integra, Civic, and Wagovan
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Overview of Four Seasons Heater Valve 74623

The Four Seasons Heater Valve 74623 is a cable-operated, non-bypass heater valve designed for precise temperature control in Acura and Honda vehicles. Specifically compatible with Honda Civic and Acura Integra models, this valve ensures reliable operation within the vehicle's HVAC system.

  • Cable operated open non-bypass heater valve
  • Constructed from durable plastic material
  • Two hose connectors with 0.625 inch (15.875 mm) openings
  • OEM replacement part for direct fit and function
  • Compatible with Acura and Honda Civic and Integra models

Four Seasons Heater Valve Product Line Details

The Four Seasons Heater Valve product line focuses on providing precise temperature control components for automotive HVAC systems. The Heater Valve 74623 is part of this line, offering a cable-operated, non-bypass design that replaces original equipment valves. This ensures consistent heater control performance and compatibility with factory specifications.

Product Features and Specifications

This HVAC heater control valve features two hose connectors, each with an opening diameter of 0.625 inches (15.875 mm), allowing for secure and leak-free connections. The valve operates via a cable mechanism, providing smooth and reliable control over coolant flow to the heater core. Made from plastic, the valve is designed to withstand typical engine compartment conditions without corrosion. It is a non-bypass style valve, meaning it directs all coolant flow through the heater core when open, which is essential for effective cabin heating.

Applications and Common Issues Addressed

  • Restores proper heater core coolant flow in Honda Civic and Acura Integra models
  • Resolves heater valve leaks or failures causing inconsistent cabin heating
  • Eliminates issues with heater control cable operation or valve sticking
  • Replaces worn or damaged OEM heater valves to maintain HVAC system integrity
  • Prevents overheating or insufficient heating due to faulty valve operation

Installation Notes and Tips

Installation of the Four Seasons Heater Valve 74623 requires disconnecting the heater control cable and removing the old valve from the heater hoses. Ensure hose connections match the 0.625 inch (15.875 mm) openings for a proper fit. Verify cable operation is smooth and correctly adjusted to allow full valve opening and closing. Use appropriate clamps to secure hoses and check for leaks after installation. Refer to vehicle-specific service manuals for detailed procedures.

Quality Assurance and Warranty

The Four Seasons Heater Valve 74623 is an OEM replacement part manufactured to meet original equipment specifications. It undergoes quality control testing to ensure durability and reliable operation within the HVAC system. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty covering defects in material and workmanship.

BrandFour Seasons
Part Number74623
PositionHeater Valve
Bypass?No
DescriptionCable Operated Open Non-Bypass Heater Valve
Hose Connector Quantity2 Connectors
MaterialPlastic
O.E. Replacement?Yes
Opening B IN0.625
Opening B MM15.875
Opening IN0.625
Opening MM15.875
Operation TypeCable
StyleNon-Bypass
TypeHeater Valves

This part fits 36 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersPositionNotes
1989AcuraIntegraN/AHeater Valve
1988AcuraIntegraN/AHeater Valve
1987AcuraIntegraN/AHeater Valve
1987HondaCivicBase1.5LL4N/AHeater Valve
1987HondaCivicBase1.3LL4N/AHeater Valve
1987HondaCivicDX1.5LL4N/AHeater Valve
1987HondaCivicDX1.3LL4N/AHeater Valve
1987HondaCivic1500 SN/AHeater Valve
1987HondaCivicSi1.5LL4N/AHeater Valve
1987HondaCivicCRX1.5LL4N/AHeater Valve
1987HondaCivicCRX HF1.5LL4N/AHeater Valve
1987HondaCivicCRX Si1.5LL4N/AHeater Valve
1986AcuraIntegraN/AHeater Valve
1986HondaCivicBase1.3LL4N/AHeater Valve
1986HondaCivicBaseN/AHeater Valve
1986HondaCivicDX1.5LL4N/AHeater Valve
1986HondaCivicDX1.3LL4N/AHeater Valve
1986HondaCivicSi1.5LL4N/AHeater Valve
1986HondaCivicCRX1.5LL4N/AHeater Valve
1986HondaCivicCRX HF1.5LL4N/AHeater Valve
1986HondaCivicCRX Si1.5LL4N/AHeater Valve
1985HondaCivicBase1.5LL4N/AHeater Valve
1985HondaCivicBase1.3LL4N/AHeater Valve
1985HondaCivicDX1.5LL4N/AHeater Valve
1985HondaCivicDX1.3LL4N/AHeater Valve
1985HondaCivic1500 S1.5LL4N/AHeater Valve
1985HondaCivicCRX1.5LL4N/AHeater Valve
1985HondaCivicCRX HF1.5LL4N/AHeater Valve
1985HondaCivicCRX Si1.5LL4N/AHeater Valve
1984HondaCivicBase1.5LL4N/AHeater Valve
1984HondaCivicBase1.3LL4N/AHeater Valve
1984HondaCivicDX1.5LL4N/AHeater Valve
1984HondaCivicDX1.3LL4N/AHeater Valve
1984HondaCivic1500 S1.5LL4N/AHeater Valve
1984HondaCivicCRX1.3LL4N/AHeater Valve
1984HondaCivicCRX 1.51.5LL4N/AHeater Valve

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

1117462315512251918779039270SB200339270SD200339270SD2A01660136174623800502CWK800502H77815HV1214C

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.