Universal Air EX9729C A/C Expansion Valve - Rear
OE Quality 60-Day Returns
Universal Air
 Thermal Expansion Valve

Universal Air EX9729C A/C Expansion Valve - Rear

Brand Universal Air EX9729C
Position Rear
Product line Thermal Expansion Valve
Fits Chevrolet and GMC · 20 vehicles

Thermal expansion valve. Regulates refrigerant flow for consistent A/C performance.

A/C flow restrictor. Helps meter refrigerant through the system efficiently.

$28.14Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.

Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $28.14
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all A/C Expansion Valve options

Thermal Expansion Valve for Rear A/C

Universal Air EX9729C is a thermal expansion valve for rear air conditioning systems. It is listed for select Chevrolet P30 and GMC P3500 applications, including rear A/C configurations, where precise refrigerant metering is required for stable evaporator performance.

Key Features

  • Thermal expansion valve for HVAC A/C flow control
  • Fits rear A/C applications on select Chevrolet P30 and GMC P3500 vehicles
  • Supports refrigerant flow regulation at the evaporator
  • Part number EX9729C for application matching
  • Universal Air Thermal Expansion Valve product line

Application Details

Fits 2000-2005 Chevrolet P30, rear. Fits 1993-1999 Chevrolet P30, N/A, compatible with rear A/C. Fits 1997-1999 GMC P3500, rear, compatible with rear A/C. Fits 1996 GMC P3500, N/A, compatible with rear A/C. This part cross-references common thermal expansion valve applications under the EX9729C reference for the same HVAC service need.

What It Helps Address

  • Inconsistent evaporator refrigerant control
  • Rear A/C cooling that is weak or uneven
  • Expansion valve restriction from wear or contamination
  • HVAC performance issues tied to incorrect refrigerant metering

Installation Notes and Tips

Verify the vehicle year, make, model, and rear A/C configuration before ordering. Match the existing valve location and refrigerant circuit layout to the listed fitment for Chevrolet P30 and GMC P3500 applications. Inspect the system for contamination, leaks, and related HVAC wear before replacing the valve.

Related reading

This part fits 20 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersFuel TypePositionNotes
2005ChevroletP30———RearThermal Expansion Valve
2004ChevroletP30———RearThermal Expansion Valve
2003ChevroletP30———RearThermal Expansion Valve
2002ChevroletP30———RearThermal Expansion Valve
2001ChevroletP30———RearThermal Expansion Valve
2000ChevroletP30———RearThermal Expansion Valve
1999ChevroletP30———N/ACompatible with rear A/C.; Thermal Expansion Valve
1999GMCP3500———RearCompatible with rear A/C.; Thermal Expansion Valve
1998ChevroletP30———N/ACompatible with rear A/C.; Thermal Expansion Valve
1998GMCP3500———RearCompatible with rear A/C.; Thermal Expansion Valve
1997ChevroletP30———N/ACompatible with rear A/C.; Thermal Expansion Valve
1997GMCP3500———RearCompatible with rear A/C.; Thermal Expansion Valve
1996ChevroletP30———N/ACompatible with rear A/C.; Thermal Expansion Valve
1996GMCP35005.7LV8GASN/ACompatible with rear A/C.; Thermal Expansion Valve
1996GMCP35004.3LV6GASN/ACompatible with rear A/C.; Thermal Expansion Valve
1996GMCP35007.4LV8GASN/ACompatible with rear A/C.; Thermal Expansion Valve
1996GMCP35006.5LV8DIESELN/ACompatible with rear A/C.; Thermal Expansion Valve
1995ChevroletP30———N/ACompatible with rear A/C.; Thermal Expansion Valve
1994ChevroletP30———N/ACompatible with rear A/C.; Thermal Expansion Valve
1993ChevroletP30———N/ACompatible with rear A/C.; Thermal Expansion Valve