HomeHVAC > Temperature Controls and Related ComponentsFour Seasons 74944 HVAC Heater Control Valve
Part #: 74944

Four Seasons 74944 HVAC Heater Control Valve

Heater Valve
⚙️ 6 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: Fiat, 500
🔄Easy Returns — Return within 60 days for a full refund
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Reliable Heater Valve for Fiat 500 HVAC Systems

The Four Seasons Heater Valve 74944 is a single solenoid electronic heater valve designed specifically for the Fiat 500. Engineered to regulate coolant flow efficiently, this electric valve ensures precise temperature control within your vehicle's HVAC system.

  • Single solenoid electronic heater valve for accurate operation
  • Constructed from durable plastic material
  • Features 3 connectors for secure installation
  • Bypass style valve with 0.625 inch inlet and outlet openings
  • Electric operation type for responsive temperature control

About the Four Seasons Heater Valve Product Line

The Heater Valve line from Four Seasons focuses on temperature control components designed to maintain optimal HVAC performance. This product line includes electric valves that regulate coolant flow to the heater core, providing consistent cabin heating. The 74944 heater valve is part of this line, offering reliable electronic control tailored for specific vehicle applications like the Fiat 500.

Detailed Product Description

The Four Seasons Heater Valve 74944 is crafted from plastic to provide a lightweight yet durable solution for your Fiat 500's heating system. Its electric valve operation allows for precise modulation of coolant flow, improving the efficiency of your vehicle’s HVAC temperature control. The valve features three connectors, ensuring a secure and stable connection within the system. Both the inlet and outlet openings measure 0.625 inches, matching OEM specifications for seamless integration. The bypass style design helps regulate coolant circulation effectively, contributing to consistent cabin temperature management.

Common Applications and Issues Addressed

  • Restores proper heater core coolant flow in Fiat 500 models
  • Resolves inconsistent cabin heating or temperature fluctuations
  • Replaces faulty or leaking heater control valves
  • Improves HVAC system responsiveness and efficiency
  • Eliminates electrical valve operation failures in heating systems

Installation Notes and Tips

When installing the Four Seasons Heater Valve 74944, ensure the vehicle is cool and the cooling system is depressurized to avoid injury. Verify that the 0.625 inch inlet and outlet ports align correctly with existing hoses. Check all three connectors for secure attachment to prevent leaks or electrical issues. Follow vehicle-specific service manual instructions for removal and installation to maintain system integrity.

Quality Assurance and Warranty

Four Seasons manufactures the Heater Valve 74944 to meet or exceed OEM standards for fit, form, and function. The plastic construction and electric solenoid design undergo rigorous testing to ensure durability and reliable operation in Fiat 500 HVAC systems. Warranty details are provided by Four Seasons and typically cover defects in material and workmanship under normal use.

BrandFour Seasons
Part Number74944
PositionHeater Valve
DescriptionSingle solenoid electronic heater valve
MaterialPlastic
Number of Connectors3 connectors
Opening B IN0.625
Opening IN0.625
Operation TypeElectric valve
StyleBypass
TypeHeater valves

This part fits 6 vehicles. Search below:

YearMakeModelSubmodelPositionNotes
2019Fiat500EN/AHeater Valve
2018Fiat500EN/AHeater Valve
2017Fiat500EN/AHeater Valve
2016Fiat500EN/AHeater Valve
2015Fiat500EN/AHeater Valve
2014Fiat500EN/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:

52014553AD52014555AC52014555AD74944H78033

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