Four Seasons 38910 A/C Expansion Valve

Four Seasons 38910 A/C Expansion Valve

The Four Seasons 38910 expansion solenoid valve is built for R134A air conditioning systems that need precise refrigerant flow control. With an aluminum body, 12-volt operation, and 5/8"-18 connector fittings, it is a direct-fit service part for restoring A/C performance in select vehicle applications.

Four Seasons Solenoid Valve line components are engineered for HVAC service work where accurate refrigerant metering and stable system response matter. This part number 38910 is a practical replacement choice when servicing an A/C expansion valve on vehicles such as Honda Civic and Toyota Camry applications that use the listed connection and refrigerant specifications.

Key Features

• Expansion solenoid valve for automotive HVAC systems
• Aluminum construction for A/C service durability
• Designed for R134A refrigerant systems
• 12-volt electrical operation
• 5/8"-18 connector and connector B fitting
• Liquid inlet size: 0.375 in.
• Uses green O-ring seal specification [24606]
• Switch not included

Detailed Description

Four Seasons 38910 is an A/C expansion valve designed to regulate refrigerant flow through the HVAC system, helping maintain proper evaporator performance and system balance. The aluminum valve body and solenoid-style design support service replacement in R134A-equipped systems that require 12-volt control and 5/8"-18 fittings. If you are replacing a worn or restricted expansion valve on a Honda Civic or Toyota Camry, this part number 38910 provides the core specifications needed for a proper match.

This part cross-references Dorman - HELP 38910 for the same application.

What It Helps Address

• Weak or inconsistent cabin cooling
• Refrigerant flow restriction at the expansion valve
• Erratic evaporator performance
• A/C system pressure imbalance related to valve wear
• Service replacement for a failed solenoid-style expansion valve

Installation Notes and Tips

Verify refrigerant type, connector size, and electrical voltage before installation. Confirm the vehicle uses R134A and 12-volt control, and match the 5/8"-18 fittings and 0.375 in. liquid inlet size to the original component. Replace sealing surfaces as needed and inspect the HVAC system for contamination or debris before reassembly. For fitment-specific service, confirm the application against the vehicle’s A/C layout before installing on Honda Civic or Toyota Camry models.

Quality Assurance

Four Seasons is a recognized HVAC parts brand with broad coverage in automotive air conditioning service. Part number 38910 is built to the listed specifications for expansion valve replacement in the appropriate vehicle applications.