Universal Air
Block Expansion Valve

Universal Air EX10351C A/C Expansion Valve - Rear

Brand Universal Air EX10351C
Position Rear
Product line Block Expansion Valve
Fits Toyota · 22 vehicles

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

A/C expansion valve. A key flow restrictor that helps meter refrigerant through the system.

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Rear A/C Expansion Valve for Toyota Applications

Universal Air EX10351C is a rear block expansion valve for select Toyota HVAC systems. It is listed for 2011-2020 Toyota Sienna rear and 2008-2019 Toyota Highlander rear applications, making it a direct-fit service part for rear air conditioning repair work.

Key Features

  • Block-style A/C expansion valve for rear HVAC circuits
  • Fits 2011-2020 Toyota Sienna, rear
  • Fits 2008-2019 Toyota Highlander, rear
  • Universal Air brand line: Block Expansion Valve
  • Part number EX10351C for ordering and cross-checking

Detailed Description

The Universal Air EX10351C is an A/C expansion valve used to regulate refrigerant flow into the rear evaporator circuit. In Toyota Sienna and Toyota Highlander rear HVAC systems, this valve helps meter refrigerant so the evaporator can absorb heat efficiently and maintain stable rear cabin cooling. If you are servicing a rear air conditioning concern on a 2011-2020 Toyota Sienna or a 2008-2019 Toyota Highlander, EX10351C is the correct part number to verify against the vehicle’s rear block expansion valve application.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

  • Weak or inconsistent rear A/C cooling
  • Refrigerant flow restriction at the rear evaporator
  • Temperature swings from a sticking expansion valve
  • Rear HVAC performance loss in Toyota Sienna and Highlander models
  • Service replacement for a failed rear block expansion valve

Installation Notes and Tips

Verify the rear HVAC configuration before ordering and match the part number EX10351C to the vehicle’s rear block expansion valve setup. Recover refrigerant properly, inspect the surrounding A/C components for contamination or wear, and replace seals and related service parts as required by the repair procedure. After installation, evacuate and recharge the system to the specified refrigerant charge.

Quality Assurance

Universal Air supplies HVAC service parts for automotive air conditioning repairs. Confirm fitment by year, make, model, and rear position before installation.

This part fits 22 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2020ToyotaSiennaRearBlock Expansion Valve
2019ToyotaHighlanderRearBlock Expansion Valve
2019ToyotaSiennaRearBlock Expansion Valve
2018ToyotaHighlanderRearBlock Expansion Valve
2018ToyotaSiennaRearBlock Expansion Valve
2017ToyotaHighlanderRearBlock Expansion Valve
2017ToyotaSiennaRearBlock Expansion Valve
2016ToyotaHighlanderRearBlock Expansion Valve
2016ToyotaSiennaRearBlock Expansion Valve
2015ToyotaHighlanderRearBlock Expansion Valve
2015ToyotaSiennaRearBlock Expansion Valve
2014ToyotaHighlanderRearBlock Expansion Valve
2014ToyotaSiennaRearBlock Expansion Valve
2013ToyotaHighlanderRearBlock Expansion Valve
2013ToyotaSiennaRearBlock Expansion Valve
2012ToyotaHighlanderRearBlock Expansion Valve
2012ToyotaSiennaRearBlock Expansion Valve
2011ToyotaHighlanderRearBlock Expansion Valve
2011ToyotaSiennaRearBlock Expansion Valve
2010ToyotaHighlanderRearBlock Expansion Valve
2009ToyotaHighlanderRearBlock Expansion Valve
2008ToyotaHighlanderRearBlock Expansion Valve