HomeHVAC > A/C Flow RestrictorsFour Seasons 38908 A/C Expansion Valve - Rear
Part #: 38908

Four Seasons 38908 A/C Expansion Valve - Rear

Expansion Valve, Rear
24 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$27.13Free 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: Chevrolet and GMC, Astro and Safari
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Reliable A/C Expansion Valve for Chevrolet Astro and GMC Safari

The Four Seasons Expansion Valve 38908 is designed to regulate refrigerant flow in your vehicle's air conditioning system. Specifically engineered for Chevrolet Astro and GMC Safari models, this brass TXV valve ensures proper cooling performance with R134a refrigerant.

  • Durable brass construction for long-lasting use
  • Compatible with R134a refrigerant systems
  • TXV (Thermostatic Expansion Valve) type for precise refrigerant control
  • Designed for Chevrolet Astro and GMC Safari vehicles
  • Part number 38908 for accurate replacement

About the Four Seasons Expansion Valve Product Line

The Expansion Valve line by Four Seasons focuses on delivering precise refrigerant flow control components for automotive HVAC systems. This product line includes TXV valves like part number 38908, which are engineered to maintain optimal air conditioning performance by regulating refrigerant pressure and flow. The Expansion Valve series is tailored to meet the specific requirements of various vehicle makes and models, including Chevrolet and GMC applications.

Product Details and Specifications

The Four Seasons 38908 A/C Expansion Valve is constructed from brass, providing corrosion resistance and durability under typical automotive operating conditions. It is designed for use with R134a refrigerant, the standard refrigerant type for many modern vehicles. As a TXV type valve, it modulates refrigerant flow based on temperature and pressure, helping maintain consistent cabin cooling. This valve is compatible with Chevrolet Astro and GMC Safari models, ensuring a proper fit and function within these vehicles' HVAC systems.

Common Applications and Issues Addressed

  • Restores proper refrigerant flow in Chevrolet Astro and GMC Safari A/C systems
  • Resolves inconsistent or weak air conditioning cooling performance
  • Prevents compressor damage caused by improper refrigerant pressure
  • Eliminates issues related to overheating or freezing of the evaporator
  • Replaces faulty or worn expansion valves to maintain system efficiency

Installation Notes and Tips

When installing the Four Seasons Expansion Valve 38908, ensure the A/C system is properly evacuated and free of contaminants. Use appropriate tools to avoid damaging the brass valve body. Verify compatibility with Chevrolet Astro and GMC Safari models before installation. Follow manufacturer torque specifications and refrigerant handling procedures to maintain system integrity and safety.

Quality Assurance and Warranty

Four Seasons Expansion Valve 38908 is manufactured to meet industry standards for HVAC components. The brass construction and TXV design contribute to reliable performance in R134a refrigerant systems. While specific warranty details may vary, Four Seasons typically offers coverage against defects in materials and workmanship to support product reliability.

BrandFour Seasons
Part Number38908
PositionExpansion Valve, Rear
ColorBrass
Refrigerant TypeR134A
TypeTXV

This part fits 24 vehicles. Search below:

YearMakeModelPositionNotes
2005ChevroletAstroRearExpansion Valve
2005GMCSafariRearExpansion Valve
2004ChevroletAstroRearExpansion Valve
2004GMCSafariRearExpansion Valve
2003ChevroletAstroRearExpansion Valve
2003GMCSafariRearExpansion Valve
2002ChevroletAstroRearExpansion Valve
2002GMCSafariRearExpansion Valve
2001ChevroletAstroRearExpansion Valve
2001GMCSafariRearExpansion Valve
2000ChevroletAstroRearExpansion Valve
2000GMCSafariRearExpansion Valve
1999ChevroletAstroRearExpansion Valve
1999GMCSafariRearExpansion Valve
1998ChevroletAstroRearExpansion Valve
1998GMCSafariRearExpansion Valve
1997ChevroletAstroRearExpansion Valve
1997GMCSafariRearExpansion Valve
1996ChevroletAstroRearExpansion Valve
1996GMCSafariRearExpansion Valve
1995ChevroletAstroRearExpansion Valve
1995GMCSafariRearExpansion Valve
1994ChevroletAstroRearExpansion Valve
1994GMCSafariRearExpansion 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:

0146628011138908155475174162075733061463110988AM341130637589083890847520205246832475890880702695049A97573ACD155475CWK758908EX7420PEXV2042MT5008T38908

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