Manifold Pressure / Fuel Flow Indicator – Dual Engine Performance Gauge | Reliable, Serviceable Instrument

Manifold Pressure Fuel Indicator. Ensure accurate engine monitoring and dependable cockpit performance

with this dual-function Manifold Pressure / Fuel Flow Indicator, a critical engine instrument designed to provide pilots with

real-time power and fuel management data. Removed in good working, serviceable condition, this unit is clean, intact, and ready

to support continued operation in a compatible general aviation aircraft. For operators, mechanics, and avionics

technicians seeking a reliable replacement or spare instrument, this gauge offers both practical value and operational confidence.

This instrument combines two essential engine parameters into a single panel-mounted unit: manifold pressure and fuel flow.

Together, these readings play a central role in engine management, power setting accuracy, fuel efficiency, and overall flight safety.

Whether used in a piston single, light twin, or experimental platform, having stable and precise indications allows pilots to maintain optimal performance across all phases of flight — from takeoff and climb to cruise and descent.

The manifold pressure function provides a direct indication of engine intake pressure, allowing pilots to set and monitor power output accurately. This is especially important for constant-speed propeller aircraft, where manifold pressure is a primary control for engine power. Reliable manifold pressure readings help prevent over-boosting, support proper mixture management, and assist in maintaining engine longevity.

The fuel flow indicator portion of this unit offers equally important information. By showing real-time fuel consumption, pilots can fine-tune mixture settings, maximize fuel efficiency, and maintain precise range planning. Accurate fuel flow data is critical for cross-country flights, training operations, and aircraft where fuel management directly affects endurance and safety margins.

Manifold Pressure Fuel Indicator

Key Details

Part Number: C662038-0104RX
Alternate P/N: 6314 / H.101
Condition: Used – Good Working Condition
Function: Dual indication for manifold pressure and fuel flow
Application: Suitable for compatible general aviation aircraft (buyer to verify fitment)

This unit has been removed from service in operational condition and remains structurally sound, with no visible damage affecting performance. The gauge face is clear and readable, and the internal mechanisms function as intended, making it a strong candidate for direct replacement of a worn, erratic, or inoperative instrument.

Manifold Pressure Fuel Indicator

Why This Instrument Is a Smart Choice

Pilots and maintenance professionals understand that engine instruments are not cosmetic items — they are vital to safe and efficient flight. This dual-function indicator provides a space-efficient solution by combining two engine parameters into one panel instrument, making it especially valuable for panels with limited real estate.

It is also a cost-effective alternative to purchasing new instrumentation while still maintaining reliable engine monitoring capability. For maintenance shops, this unit serves as an excellent inventory item for aircraft undergoing inspection, restoration, or instrument replacement.

Manifold Pressure Fuel Indicator

Ideal Uses

• Replacement for aging or malfunctioning engine gauges
• Restoration of legacy aircraft panels
• Spare inventory for maintenance facilities
• Experimental and light aircraft builds
• Training aircraft requiring dependable engine data

With clean condition, proven functionality, and dual critical-engine monitoring capability, this Manifold Pressure / Fuel Flow Indicator delivers dependable performance and excellent value. Ready for installation pending compatibility verification, it’s a practical solution for maintaining accurate engine management and safe flight operations.