HomeHVAC > Temperature Controls and Related ComponentsFour Seasons 74000 HVAC Heater Control Valve
Part #: 74000

Four Seasons 74000 HVAC Heater Control Valve

Heater Valve
⚙️ 3 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: Honda, Prelude
🔄Easy Returns — Return within 60 days for a full refund
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Overview of Four Seasons Heater Valve 74000 for Honda Prelude

The Four Seasons Heater Valve 74000 is a cable-operated, pull-to-close heater valve designed specifically for Honda Prelude models. This non-bypass heater valve ensures precise temperature control within your vehicle's HVAC system, maintaining optimal cabin comfort.

  • Cable operated pull-to-close mechanism for reliable control
  • Non-bypass style with two hose connectors
  • Plastic construction for durability and corrosion resistance
  • O.E. replacement part ensuring proper fit and function
  • Compatible with Honda Prelude models requiring 0.625 inch hose openings

Detailed Product Description

The Four Seasons Heater Valve 74000 belongs to the Heater Valve product line, which focuses on temperature control components within automotive HVAC systems. This particular valve is a non-bypass type, meaning it does not allow coolant to bypass the heater core when closed, providing effective temperature regulation. The valve operates via a cable mechanism that pulls to close, offering precise control over heater flow. Constructed from durable plastic, it resists corrosion and wear, extending the service life of your vehicle’s heating system. Designed as an O.E. replacement, this heater valve matches original equipment specifications, including hose connector openings of 0.625 inches, ensuring a seamless fit for Honda Prelude vehicles.

Common Applications and Issues Addressed

  • Restores proper heater core coolant flow control in Honda Prelude HVAC systems
  • Eliminates heater valve leaks caused by worn or damaged valves
  • Resolves inconsistent cabin heating due to faulty valve operation
  • Prevents coolant bypass issues that reduce heating efficiency
  • Replaces malfunctioning or stuck heater valves to maintain temperature regulation

Installation Notes and Tips

  • Ensure compatibility with Honda Prelude model year before installation
  • Inspect hose connections for wear and replace if necessary to prevent leaks
  • Use proper tools to connect the cable-operated mechanism securely
  • Verify hose openings match the 0.625 inch specification for a proper seal
  • Test heater valve operation after installation to confirm full functionality

Quality Assurance and Warranty

The Four Seasons Heater Valve 74000 is manufactured to meet original equipment standards, providing reliable performance and fitment for Honda Prelude vehicles. As an O.E. replacement part, it undergoes quality checks to ensure durability and proper operation within the HVAC system. Warranty coverage details should be confirmed with the product supplier or manufacturer.

BrandFour Seasons
Part Number74000
PositionHeater Valve
Bypass?No
DescriptionCable Operated Pull to Close Non-Bypass Heater Valve
Hose Connector Quantity2 Connectors
MaterialPlastic
O.E. Replacement?Yes
Opening B IN0.625
Opening IN0.625
Operation TypeCable
StyleNon-Bypass
TypeHeater Valves

This part fits 3 vehicles. Search below:

YearMakeModelPositionNotes
1987HondaPreludeN/AHeater Valve
1986HondaPreludeN/AHeater Valve
1985HondaPreludeN/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:

1117400020846839270SF000374000H74000H849

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