Service Gauge Port Valves

Tools Required:

• High Side Adapter Set D81L-19703-A
• Tee Adapter Tool D87P-19703-A

The refrigerant system has a high-pressure (discharge) and a low-pressure (suction) gauge port valve. These are Schrader-type valves which provide access to both sides (high-pressure and low-pressure) of the system for service hoses and a manifold gauge set so system pressures can be observed. Rotunda High Side Adapter Set D81L-19703-A or Motorcraft®Tool YT-354 or 355 or equivalent is required to connect a manifold gauge set or charging station to the high-pressure gauge port valve.

High-Pressure Gauge Port Valve Adapters

Tee Adapter Tool D87P-19703-A or equivalent is available for use when diagnosing the low-pressure side of the refrigerant system.

Always replace the protector caps on the gauge port valves after servicing the refrigerant system.

Tee Adapter Tool Installation

A service gauge port valve assembly is shown in the following illustration with the valve in the closed position. The next illustration shows a gauge port valve in the open position with a manifold gauge set hose attached.

Service Gauge Port Valve






Manifold Gauge Set Hose Connected to Gauge Port Valve