HomeHVAC > A/C Flow RestrictorsFour Seasons 38730 A/C Expansion Valve
Part #: 38730

Four Seasons 38730 A/C Expansion Valve

Expansion Valve
43 vehicles fit this part
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Expansion Valve
Fitment: Honda, Civic, Prelude, Wagovan, and Accord
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Reliable A/C Expansion Valve for Honda Accord, Civic, and Prelude

The Four Seasons Expansion Valve 38730 is designed to regulate refrigerant flow in your vehicle's air conditioning system. Engineered specifically for Honda Accord, Civic, and Prelude models, this brass TXV valve ensures proper cooling performance with R134a refrigerant.

  • Constructed from durable brass for long-lasting use
  • Compatible with R134a refrigerant systems
  • TXV (Thermostatic Expansion Valve) type for precise refrigerant control
  • Designed for Honda Accord, Civic, and Prelude models
  • OEM-quality fit and function with part number 38730

Product Details and Attributes

This Four Seasons Expansion Valve 38730 is a thermostatic expansion valve (TXV) made from brass, which provides corrosion resistance and durability under typical automotive HVAC conditions. It is engineered to work with R134a refrigerant, the standard refrigerant type for many Honda vehicles including the Accord, Civic, and Prelude. The TXV design allows for accurate metering of refrigerant flow, which is critical for maintaining optimal air conditioning system performance and efficiency.

About the Four Seasons Expansion Valve Product Line

The Expansion Valve product line from Four Seasons focuses on delivering precise refrigerant flow control components for automotive HVAC systems. This line includes TXV valves like part number 38730, which are designed to meet or exceed OEM specifications for fit and function. Using a valve from this product line helps ensure consistent cooling performance and system reliability in compatible vehicles.

Common Applications and Issues Addressed

  • Restores proper refrigerant flow in Honda Accord, Civic, and Prelude A/C systems
  • Resolves inconsistent cabin cooling or fluctuating air temperatures
  • Addresses A/C system cycling or compressor short-cycling problems
  • Prevents refrigerant flooding or starvation in the evaporator
  • Helps maintain system pressure balance for efficient operation

Installation Notes and Tips

  • Ensure compatibility with your specific Honda model and year before installation
  • Properly evacuate and recharge the A/C system with R134a refrigerant after replacement
  • Inspect related components such as the receiver/drier and compressor for wear
  • Follow manufacturer torque specifications when installing the valve
  • Use appropriate safety equipment and procedures when handling refrigerant

Quality Assurance and Warranty

Four Seasons Expansion Valve 38730 is manufactured to meet industry standards for durability and performance. The brass construction and TXV design contribute to reliable operation within the specified refrigerant system. While specific warranty details may vary, Four Seasons typically offers coverage against defects in materials and workmanship to ensure customer confidence in their HVAC components.

BrandFour Seasons
Part Number38730
PositionExpansion Valve
ColorBrass
Refrigerant TypeR134A
TypeTXV

This part fits 43 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersPositionNotes
1987HondaCivicBaseN/AExpansion Valve
1987HondaCivicDXN/AExpansion Valve
1987HondaCivic1500 SN/AExpansion Valve
1987HondaCivicSiN/AExpansion Valve
1987HondaCivicCRXN/AExpansion Valve
1987HondaCivicCRXN/AKeihin; Expansion Valve
1987HondaCivicCRX HFN/AExpansion Valve
1987HondaCivicCRX HFN/AKeihin; Expansion Valve
1987HondaCivicCRX SiN/AExpansion Valve
1987HondaCivicCRX SiN/AKeihin; Expansion Valve
1987HondaPrelude1.8LL4N/AExpansion Valve
1987HondaPrelude2.0LL4N/AKeihin; Expansion Valve
1986HondaCivicBaseN/AExpansion Valve
1986HondaCivicDXN/AExpansion Valve
1986HondaCivicSiN/AExpansion Valve
1986HondaCivicCRXN/AExpansion Valve
1986HondaCivicCRXN/AKeihin, Sanden Compressor; Expansion Valve
1986HondaCivicCRX HFN/AExpansion Valve
1986HondaCivicCRX HFN/AKeihin, Sanden Compressor; Expansion Valve
1986HondaCivicCRX SiN/AExpansion Valve
1986HondaCivicCRX SiN/AKeihin, Sanden Compressor; Expansion Valve
1986HondaPrelude1.8LL4N/AExpansion Valve
1986HondaPrelude2.0LL4N/AKeihin; Expansion Valve
1985HondaAccordN/AKeihin, Sanden Compressor; Expansion Valve
1985HondaCivicBaseN/AExpansion Valve
1985HondaCivicDXN/AExpansion Valve
1985HondaCivic1500 SN/AExpansion Valve
1985HondaCivicCRXN/AExpansion Valve
1985HondaCivicCRXN/AKeihin, Sanden Compressor; Expansion Valve
1985HondaCivicCRX HFN/AExpansion Valve
1985HondaCivicCRX HFN/AKeihin, Sanden Compressor; Expansion Valve
1985HondaCivicCRX SiN/AExpansion Valve
1985HondaCivicCRX SiN/AKeihin, Sanden Compressor; Expansion Valve
1985HondaPrelude1.8LL4N/AExpansion Valve
1985HondaPrelude2.0LL4N/AKeihin; Expansion Valve
1984HondaAccordN/AKeihin; Expansion Valve
1984HondaCivic1.5LL4N/AKeihin, Sanden Compressor; Expansion Valve
1983HondaAccordN/AKeihin; w/ Pace Product; Expansion Valve
1982HondaAccordN/AKeihin; w/ Pace Product; Expansion Valve
1979HondaAccordN/ANippondenso; Expansion Valve
1978HondaAccordN/ANippondenso; Expansion Valve
1977HondaAccordN/ANippondenso; Expansion Valve
1976HondaAccordN/ANippondenso; Expansion 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:

1113873015578617506182202191897962073842082022083633061373402034112643758730386506806913865068096138650SA566138650SA700338650SA700438650SB26613873046475738467B40B6A75873080702988919543938730A9909AC3141CAC3862AC3862CCWK758730EX7008EX7008CFE202FE363FJSE1017FJSE1066FJSE2066SE1017SE1066T38730

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