HomeHVAC > A/C Flow RestrictorsFour Seasons 39344 A/C Expansion Valve - Rear
Part #: 39344

Four Seasons 39344 A/C Expansion Valve - Rear

Expansion Valve, Rear
4 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$31.63Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Expansion Valve, Rear
Fitment: Toyota, Sienna
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Four Seasons Expansion Valve 39344 for Toyota Sienna

The Four Seasons Expansion Valve 39344 is designed specifically for Toyota Sienna models requiring precise air conditioning flow control. This A/C expansion valve ensures efficient refrigerant regulation for optimal HVAC system performance.

  • Compatible with Toyota Sienna vehicles
  • Part number 39344 for accurate identification
  • Constructed from durable brass material
  • Designed for R134a refrigerant systems
  • Thermostatic expansion valve (Txv) type for precise flow control

Product Features and Specifications

This Four Seasons Expansion Valve 39344 is crafted from brass, providing corrosion resistance and long-lasting durability in automotive HVAC systems. It is engineered to work with R134a refrigerant, the standard for many modern vehicles, including the Toyota Sienna. The thermostatic expansion valve (Txv) design allows for accurate metering of refrigerant flow, which helps maintain consistent cabin temperatures and improves overall air conditioning efficiency.

About the Four Seasons Expansion Valve Product Line

The Expansion Valve product line from Four Seasons focuses on delivering reliable A/C flow restrictors that regulate refrigerant flow within automotive HVAC systems. This line includes thermostatic expansion valves like part number 39344, which are designed to meet specific vehicle requirements such as those of the Toyota Sienna. These valves help maintain system balance and contribute to effective climate control.

Common Applications and Problem Solving

  • Restores proper refrigerant flow in Toyota Sienna A/C systems
  • Addresses inconsistent cabin cooling or temperature fluctuations
  • Replaces faulty or leaking expansion valves causing system inefficiency
  • Helps resolve issues related to improper refrigerant metering
  • Supports maintenance of R134a refrigerant-based air conditioning systems

Installation Notes and Tips

When installing the Four Seasons Expansion Valve 39344, ensure compatibility with your Toyota Sienna model year and HVAC system specifications. Proper evacuation and recharging of the A/C system with R134a refrigerant are essential after installation. It is recommended to follow manufacturer guidelines and use appropriate tools to avoid damage to the valve or surrounding components.

Quality Assurance and Warranty

Four Seasons provides quality-tested HVAC components, including the Expansion Valve 39344, to meet OEM standards. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.

BrandFour Seasons
Part Number39344
PositionExpansion Valve, Rear
ColorBrass
Refrigerant TypeR134A
TypeTXV

This part fits 4 vehicles. Search below:

YearMakeModelPositionNotes
2010ToyotaSiennaRearExpansion Valve
2009ToyotaSiennaRearExpansion Valve
2008ToyotaSiennaRearExpansion Valve
2007ToyotaSiennaRearFrom 1/07; 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:

2173443411819393447596588073078851508110A17344CWK759658EX10450CT39344

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