Universal Air EX9770C A/C Expansion Valve - Rear

Universal Air EX9770C Block Expansion Valve

The Universal Air EX9770C is a rear A/C expansion valve for select Porsche Cayenne applications. It regulates refrigerant flow through the HVAC system to support proper evaporator performance and rear cabin cooling.

Key Features

• Block expansion valve for rear HVAC service
• Fits 2003-2006 Porsche Cayenne, rear
• Fits 2008-2010 Porsche Cayenne, rear
• Fits 2011-2015 Porsche Cayenne, rear; must use with part number 95557231910; 1st design
• Universal Air Block Expansion Valve line for A/C flow control applications
• Part number EX9770C for service matching and ordering

Detailed Description

Universal Air EX9770C is an A/C expansion valve built for rear climate control service on Porsche Cayenne models. As a block expansion valve, it meters refrigerant entering the evaporator so the HVAC system can maintain correct pressure drop and cooling performance. This part number EX9770C is listed for 2003-2006 Porsche Cayenne rear, 2008-2010 Porsche Cayenne rear, and 2011-2015 Porsche Cayenne rear applications, with the 2011-2015 fitment requiring use with part number 95557231910 and the 1st design configuration.

What It Helps Address

• Rear A/C vent air that is warm or inconsistent
• Refrigerant flow control issues at the evaporator
• HVAC performance loss caused by a worn expansion valve
• Improper cooling balance in Porsche Cayenne rear climate circuits

Installation Notes and Tips

Verify the vehicle year, rear HVAC configuration, and expansion valve design before ordering. For 2011-2015 Porsche Cayenne rear applications, confirm the system uses part number 95557231910 and the 1st design block expansion valve layout. Match the original valve style and refrigerant circuit routing during replacement to avoid fitment errors.

Quality Assurance

Universal Air supplies HVAC service parts for refrigerant flow control applications. This part cross-references OE-style service references for the same application, including 95557231910.