United Instruments 6411 Manifold Pressure Indicator

This is a standard mechanical cockpit instrument designed to measure and display engine manifold pressure in inches of mercury (In. Hg). It serves as a primary engine instrument commonly installed on high-performance piston aircraft equipped with constant-speed propellers.
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Description

This unit has been bench tested by an FAA certified repair station and it comes with an 8130 single release dated 6/3/2026.

Key Technical Capabilities
  • Pneumatic Pressure Sensing: Utilizes an internal aneroid diaphragm mechanism that connects directly to the engine’s intake manifold via a static line, sensing absolute pressure changes without relying on electrical systems.
  • Power Output Optimization: Provides real-time data to help the flight crew accurately set engine power and monitor engine load, which is critical when adjusting variable-pitch or constant-speed propellers.
  • Standard Panel Profile: Designed to fit standard small-diameter panel holes, making it an easy drop-in replacement for secondary or primary engine gauge clusters.
  • Durable Construction: Housed in a lightweight, rugged case built to withstand the continuous vibrations of an aircraft engine environment.

Additional information

Part Number

6411

Serial Number

2876

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