Universal Air
Block Expansion Valve

Universal Air EX529437C A/C Expansion Valve - Rear

Brand Universal Air EX529437C
Position Rear
Product line Block Expansion Valve
Fits Nissan · 4 vehicles

Block expansion valve. Regulates refrigerant flow in the A/C system.

A/C expansion valve. Controls refrigerant metering for efficient cooling.

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Block Expansion Valve for Rear A/C Service

Universal Air EX529437C is a block expansion valve for rear air conditioning service. It is a direct-fit HVAC flow restrictor application for select Nissan Quest models, with fitment listed for 1993-1995 and 1998 rear systems.

Key Features

  • Part type: A/C expansion valve
  • Brand line: Block Expansion Valve
  • Rear HVAC application
  • Fits select Nissan Quest rear A/C systems
  • Part number: EX529437C

Fitment Details

Compatible with 1993-1995 Nissan Quest, rear, Block Expansion Valve. Also fits 1998 Nissan Quest, rear, Block Expansion Valve. Search terms such as Nissan Quest rear A/C expansion valve and EX529437C rear HVAC valve apply to this listing.

What It Helps Address

  • Restricted refrigerant flow at the rear evaporator circuit
  • Incorrect A/C metering at the expansion valve
  • Rear cabin cooling performance loss
  • Pressure imbalance in the HVAC refrigerant circuit
  • Service replacement for a worn or failed rear block valve

Installation Notes

Verify the original valve style, rear location, and vehicle year before installation. Match the replacement to the existing rear HVAC layout on the Nissan Quest and confirm system cleanliness during service. EX529437C should be installed only on applications that match the listed fitment.

Quality Assurance

Universal Air EX529437C is cataloged for the specified rear Nissan Quest applications and follows the brand’s block expansion valve product line naming for HVAC service parts.

This part fits 4 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
1998NissanQuestRearBlock Expansion Valve
1995NissanQuestRearBlock Expansion Valve
1994NissanQuestRearBlock Expansion Valve
1993NissanQuestRearBlock Expansion Valve