GYRO PRESSURE GAGUE (P/N 1g4-4) - As Removed

The 1g4-4 is a panel-mounted gyro pressure gauge that monitors vacuum system suction for air-driven gyroscopic instruments. This mechanical indicator reads in inches of mercury, displaying real-time system pressure to ensure adequate vacuum for reliable gyro operation. Installed in the aircraft cockpit instrument panel, it provides pilots with critical feedback on engine-driven vacuum pump performance.

Essential for preflight checks and in-flight system monitoring on general aviation aircraft equipped with vacuum-powered attitude indicators, heading indicators, and turn coordinators. Install per aircraft maintenance manual specifications.

What is the GYRO PRESSURE GAGUE (P/N 1g4-4)?

The 1g4-4 is a panel-mounted gyro pressure gauge that monitors vacuum system suction for air-driven gyroscopic instruments. This mechanical indicator reads in inches of mercury, displaying real-time system pressure to ensure adequate vacuum for reliable gyro operation.

Is the 1g4-4 calibrated and ready to install?

Calibration status depends on the condition. Overhauled instruments come fully calibrated with an 8130-3 tag. The GYRO PRESSURE GAGUE is available in: As Removed. Contact us to confirm calibration status for your selected condition.

Can the 1g4-4 be used as a direct replacement in my aircraft?

The GYRO PRESSURE GAGUE is designed as a form-fit-function replacement. Verify the part number against your aircraft's Illustrated Parts Catalog (IPC) and instrument panel layout to confirm compatibility before ordering.

Do you offer instrument exchange programs for the 1g4-4?

Yes, we offer core exchange programs on select instruments. Send your unserviceable unit and receive a discount on the replacement. Call (904) 998-9101 or submit an RFQ to check exchange availability for the 1g4-4.