Universal Air
Block Expansion Valve

Universal Air EX529439C A/C Expansion Valve - Rear

Brand Universal Air EX529439C
Position Rear
Product line Block Expansion Valve
Fits Dodge · 28 vehicles

Expansion valve. Regulates refrigerant flow for efficient A/C performance.

Block-style design. Compact form factor for a clean, integrated fit.

$22.74Free 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 $22.74
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Block Expansion Valve for Rear A/C Service

Universal Air EX529439C is a block-style A/C expansion valve for rear HVAC systems. It meters refrigerant flow into the evaporator to support proper cooling performance in the rear air conditioning circuit.

Key Features

  • Block expansion valve for rear HVAC applications
  • Controls refrigerant flow at the evaporator inlet
  • Direct fitment for select Dodge van rear A/C systems
  • Built for service replacement in HVAC flow restrictor applications
  • Part number EX529439C for ordering and catalog lookup

Fitment Details

  • Fits 1999-2003 Dodge Ram 1500 Van, rear. Block Expansion Valve.
  • Fits 1999-2003 Dodge Ram 2500 Van, rear. Block Expansion Valve.
  • Fits 1999-2003 Dodge Ram 3500 Van, rear. Block Expansion Valve.
  • Fits 1998 Dodge B2500, rear. Block Expansion Valve.
  • Fits 1998 Dodge B3500, rear. Block Expansion Valve.

What It Helps Address

  • Weak rear A/C cooling output
  • Improper refrigerant metering at the evaporator
  • Restricted or inconsistent rear HVAC performance
  • Service replacement for a worn expansion valve

Installation Notes

Verify the rear HVAC configuration and match the valve style to the original unit before installation. Inspect the A/C system for contamination, leaks, and related wear before returning the vehicle to service. Confirm the part number EX529439C against the vehicle’s rear air conditioning setup.

Quality Assurance

Universal Air EX529439C is cataloged as a Block Expansion Valve for HVAC service applications. This part cross-references no additional part numbers in the provided data.

This part fits 28 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelPositionNotes
2003DodgeRam 1500 Van—RearBlock Expansion Valve
2003DodgeRam 2500 Van—RearBlock Expansion Valve
2003DodgeRam 3500 Van—RearBlock Expansion Valve
2002DodgeRam 1500 Van—RearBlock Expansion Valve
2002DodgeRam 2500 VanBaseRearBlock Expansion Valve
2002DodgeRam 2500 VanSERearBlock Expansion Valve
2002DodgeRam 3500 VanBaseRearBlock Expansion Valve
2002DodgeRam 3500 VanSERearBlock Expansion Valve
2002DodgeRam 3500 VanSLTRearBlock Expansion Valve
2001DodgeRam 1500 Van—RearBlock Expansion Valve
2001DodgeRam 2500 VanBaseRearBlock Expansion Valve
2001DodgeRam 2500 VanSERearBlock Expansion Valve
2001DodgeRam 3500 VanBaseRearBlock Expansion Valve
2001DodgeRam 3500 VanSERearBlock Expansion Valve
2001DodgeRam 3500 VanSLTRearBlock Expansion Valve
2000DodgeRam 1500 Van—RearBlock Expansion Valve
2000DodgeRam 2500 VanBaseRearBlock Expansion Valve
2000DodgeRam 2500 VanSERearBlock Expansion Valve
2000DodgeRam 3500 VanSLTRearBlock Expansion Valve
2000DodgeRam 3500 VanBaseRearBlock Expansion Valve
2000DodgeRam 3500 VanSERearBlock Expansion Valve
1999DodgeRam 1500 Van—RearBlock Expansion Valve
1999DodgeRam 2500 Van—RearBlock Expansion Valve
1999DodgeRam 3500 Van—RearBlock Expansion Valve
1998DodgeB2500BaseRearBlock Expansion Valve
1998DodgeB2500SLTRearBlock Expansion Valve
1998DodgeB3500BaseRearBlock Expansion Valve
1998DodgeB3500SLTRearBlock Expansion Valve