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  1. UMA UMA N04112U030P

    Fuel Pressure Electric, 1 1/4" 0-30 PSI

    $214.95
    $214.95
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  2. UMA UMA N04113U100P

    Oil Pressure Electric, 1 1/4" 0-100 PSI

    $219.95
    $219.95
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  3. UMA UMA N0711MUA50H

    Manifold Pressure Electric, 1 1/4" 5-50 InHg

    $229.95
    $229.95
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  4. UMA UMA N0921000301

    Flap Position Electric, 2 1/4" 0-30°

    $229.95
    $229.95
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  5. UMA UMA N0921000401

    Flap Position Electric, 2 1/4" 0-40°

    $209.95
    $209.95
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  6. UMA UMA N12113U300F

    Oil Temperature Electric, 1 1/4" 100-300°F

    $214.95
    $214.95
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  7. UMA UMA N12115U150C

    Water Temperature Electric, 1 1/4" 40-150°C

    $209.95
    $209.95
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  8. UMA UMA N12119U040C

    OAT Electric, 1 1/4" (-25)-40° C

    $279.95
    $279.95
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  9. UMA UMA N141100917V

    Voltmeter Electric, 1 1/4" 9-17V

    $219.95
    $219.95
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  10. UMA UMA N15110003CA

    Ammeter Electric, 1 1/4" 30/0/30

    $259.95
    $259.95
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  11. UMA UMA N1826251C1

    Fuel Quantity Electric, 2 1/4" 0-5 Volts

    $239.95
    $239.95
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  12. UMA UMA N18262F1F1

    Fuel Quantity Electric, 2 1/4" 240-30 ohm

    $239.95
    $239.95
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  13. UMA UMA N20212E020

    Fuel Flow Indicator Electric, 2 1/4" 0-20 GPH

    $217.00
    $217.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  14. UMA UMA N20212F060

    Fuel Flow Indicator Electric, 2 1/4" 0-60 GPH

    $217.00
    $217.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  15. UMA UMA T19-801-102

    Tachometer Mechanical Drive Port Electric, 3 1/8" 0-3500 RPM, TSO'd

    $565.00
    $565.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  16. UMA UMA T19-801-10C

    Electric Analog Tachometer, 3 1/8" 0-3500 RPM TSO'd

    $575.00
    $575.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  17. UMA UMA T19-801-112

    Tachometer Mechanical Drive Port Electric, 3 1/8" 0-3500rpm, TSO'd

    $599.00
    $599.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  18. UMA UMA N1EU07G

    UMA Gauge Pressure Sender, 0-7 psi, 29 psi Max

    $169.95
    $169.95
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  19. UMA UMA N1EUMA035G-B

    UMA Ceramic Gauge Pressure Sender, 0-35 psi, 145 psi Max

    $171.95
    $171.95
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  20. UMA UMA 1B1

    Probe Temperature, 1/8" NPT

    $87.95
    $87.95
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  21. UMA UMA 1B3

    Probe Temperature, 5/8-18 Thread

    $87.95
    $87.95
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  22. UMA UMA 1CU1

    Shunt, -30 to +30 Amps

    $53.95
    $53.95
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  23. UMA UMA 1CU2

    Shunt, -60 to +60 Amps

    $53.95
    $53.95
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  24. UMA UMA 1CU4

    Shunt, -100 to +100 Amps

    $53.95
    $53.95
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  25. UMA UMA 1EM2K

    Pressure Sensor, 0-2500 psi

    $224.95
    $224.95
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
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Engine Instruments

Aircraft engine instruments are crucial for any pilot to access essential engine information, such as fuel quantity, fuel flow and oil pressure. Chief Aircraft Inc. offers an extensive collection of engine instruments so you can ensure your aircraft is operating as it should. Browse our selection today.

Purpose of Aircraft Engine Instruments

In any aircraft, it's important to accurately measure operating parameters such as fuel flow and levels, electrical loads and pressure. When it comes to the engine specifically, pilots need to know exactly how the aircraft is operating at all times with accurate, real-time information. This allows them to adjust as necessary to ensure the engine runs as it should during flight. Typical information that engine instruments display includes:

  • Oil pressure: This gauge indicates whether the oil pressure is within operating limits so the engine gets the lubrication it needs.
  • Exhaust gas temperature: The exhaust stream temperature is monitored to help prevent temperature-related damage to engine components.
  • Oil temperature: Oil may lose its lubrication properties when its temperature is too high.
  • Engine pressure ratio (EPR): This is the total pressure across a jet engine.
  • Torque: A torque meter measures the amount of torque being produced by the engine.
Aircraft engine instruments are one of the three basic sets of aircraft instruments — the other two being flight instruments and navigation instruments — that pilots rely on for a safe and successful flight.

Our Extensive Supply of Engine Instruments

At Chief Aircraft Inc., we supply a wide range of engine instruments from reputable manufacturers, including Electronics International, JP Instruments and Superior Labs, Inc. We make your shopping experience much easier by letting you find the instruments you need using helpful categories. You can save by shopping our Electronics International Engine Monitors or the JPI EDM Series including the 4 Cylinder Engine Data Monitor 730 System. You can also browse by manufacturer and instrument type, such as tachometers from Mitchell, Superior Labs or UMA. We also stock probes and senders from Insight Instruments, Mitchell and UMA. Find manifold pressure gauges from UMA, oil temperature gauges from Mitchell and other essential engine instruments.

Shop Our Inventory of Aircraft Engine Gauges for Your Instrumentation Needs

Not sure which aircraft engine management systems will fulfill your requirements? With more than 40 years of experience in supplying quality engine instruments and other aviation equipment, our staff can answer whatever question you bring to us. Browse our selection of aircraft engine instruments today for your aircraft. You can also contact our team if you have questions and to find out more information on the instruments of your choice.