GM GENUINE PARTS A/C Thermal Expansion Valve Kit 15-51325 (22989959) with Seals & Mounting Hardware, Vehicle-Specific

GM Genuine Parts 15-51325 (22989959) is a complete A/C thermal expansion valve kit that replaces the original metering device and includes valve seals, stud, and mounting bolts for a correct, vehicle-specific installation.

This kit supplies the exact replacement expansion valve and installation hardware used or validated by General Motors, engineered to meet the factory specifications of compatible GM vehicles. The expansion valve meters refrigerant flow into the evaporator; when worn or leaking, it can reduce cooling efficiency or allow moisture and contaminants into the system. The 15-51325 kit includes the valve and the associated seals and fasteners to help restore a sealed, factory-like refrigerant circuit without sourcing separate parts.

How does this expansion valve kit affect my vehicle's A/C performance?

A correctly sized OEM expansion valve meters refrigerant volume into the evaporator coil to maintain efficient heat exchange and steady cabin cooling. Installing this GM Genuine Parts kit helps ensure the valve characteristics match the original calibration, which supports consistent refrigerant pressure and temperature behavior.

• Restores factory refrigerant metering for balanced cooling
• Replaces worn valve components that cause inconsistent temperatures
• Includes seals to prevent refrigerant leaks and air ingress
• Helps avoid system contamination that can damage the compressor

What comes in the 15-51325 (22989959) kit and why does each piece matter?

The kit contains the thermal expansion valve plus valve seals, a stud, and mounting bolts so technicians can complete the replacement in one repair session. Each hardware piece secures the valve and maintains a pressure-tight connection between refrigerant lines and the evaporator housing.

• Expansion valve — the metering device controlling refrigerant flow
• Valve seals — ensure leak-free joints and protect system charge
• Stud and bolts — provide correct alignment and mechanical fastening
• Vehicle-specific fit — sized and configured for the intended GM application

How do I know this part fits my vehicle and is the right choice?

This GM Genuine Parts item is vehicle-specific and listed with the OEM equivalent number 22989959, so fitment depends on model year and A/C system configuration. Cross-check the provided Orem/GM number with your vehicle’s parts catalog or VIN to confirm compatibility before ordering.

• Check the Orem equivalent part number 22989959 against your vehicle
• Compare system layout and connection style with the old valve
• Use VIN-based parts lookup or consult a GM dealer for verification
• Vehicle-specific packaging dimensions: 6.35 x 12.446 x 9.398 cm

Who is this kit for? Technicians and DIYers replacing an aging or leaking A/C expansion valve on compatible GM vehicles will benefit from the 15-51325 (22989959) kit. It’s intended for anyone seeking an OE-quality, direct-fit replacement with the necessary seals and fasteners included, reducing the need to source multiple components separately. If your system shows signs of inconsistent cooling, visible refrigerant leaks at the valve, or you’re rebuilding the evaporator section, choosing a GM Genuine Parts expansion valve kit helps maintain factory performance and simplifies installation.