HomeHVAC > A/C Flow RestrictorsUniversal Air EX9779C A/C Expansion Valve
Part #: EX9779C

Universal Air EX9779C A/C Expansion Valve

Block Expansion Valve
17 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$24.38Free 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
Block Expansion Valve
Fitment: Nissan, LEAF, Sentra, and Tsuru
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Universal Air Block Expansion Valve EX9779C

The Universal Air Block Expansion Valve EX9779C is designed specifically for Nissan vehicles, including the LEAF and Sentra models. This A/C expansion valve helps regulate refrigerant flow within the air conditioning system to maintain optimal cooling performance.

  • Compatible with Nissan LEAF and Sentra models
  • Part number EX9779C for precise identification
  • Part of the Universal Air Block Expansion Valve product line
  • Controls refrigerant flow to improve A/C efficiency
  • Direct replacement for OEM expansion valves

About the Block Expansion Valve Product Line

The Block Expansion Valve line from Universal Air focuses on reliable A/C flow restrictors designed to meet specific vehicle requirements. This product line ensures proper refrigerant metering and pressure regulation, which is critical for maintaining the performance and longevity of automotive air conditioning systems. The EX9779C is engineered to fit Nissan models, providing a dependable solution within this product range.

Detailed Product Description

The EX9779C A/C expansion valve is an essential component in the HVAC system of Nissan LEAF and Sentra vehicles. It functions by controlling the amount of refrigerant entering the evaporator, which directly affects the cooling capacity and efficiency of the air conditioning system. This valve helps maintain the correct pressure and temperature balance, preventing issues such as compressor overload or insufficient cooling. Designed as a direct fit replacement, the EX9779C ensures compatibility and ease of installation without requiring modifications.

Common Applications and Issues Addressed

  • Restores proper refrigerant flow in Nissan LEAF and Sentra A/C systems
  • Resolves inconsistent cabin cooling or warm air blowing from vents
  • Prevents compressor cycling problems caused by faulty expansion valves
  • Eliminates refrigerant leaks associated with worn or damaged valves
  • Helps maintain system pressure for optimal HVAC performance

Installation Notes and Tips

  • Ensure the vehicle is compatible: Nissan LEAF or Sentra models
  • Follow manufacturer guidelines for refrigerant handling and safety
  • Replace the expansion valve during A/C system service or when diagnosing cooling issues
  • Check for leaks and proper refrigerant charge after installation
  • Professional installation is recommended to maintain system integrity

Quality Assurance and Warranty

The Universal Air Block Expansion Valve EX9779C is manufactured to meet industry standards for durability and performance. While specific warranty details are not provided, Universal Air products typically undergo quality control testing to ensure reliable operation within the specified vehicle applications. Using this part helps maintain the integrity of the Nissan LEAF and Sentra air conditioning systems.

This part fits 17 vehicles. Search below:

YearMakeModelPositionNotes
2020NissanLEAFN/ABlock Expansion Valve
2019NissanLEAFN/ABlock Expansion Valve
2019NissanSentraN/ABlock Expansion Valve
2018NissanLEAFN/ABlock Expansion Valve
2018NissanSentraN/ABlock Expansion Valve
2017NissanLEAFN/ABlock Expansion Valve
2017NissanSentraN/ABlock Expansion Valve
2016NissanLEAFN/ABlock Expansion Valve
2016NissanSentraN/ABlock Expansion Valve
2015NissanLEAFN/ABlock Expansion Valve
2015NissanSentraN/ABlock Expansion Valve
2014NissanLEAFN/ABlock Expansion Valve
2014NissanSentraN/ABlock Expansion Valve
2013NissanLEAFN/ABlock Expansion Valve
2013NissanSentraN/ABlock Expansion Valve
2012NissanLEAFN/ABlock Expansion Valve
2011NissanLEAFN/ABlock 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:

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