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  1. Mitchell MIT PS-211-9101

    Shunt Ammeter, 75 amp PMA

    $63.50
    $63.50
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  2. Tach Cables TACH ADAPTER-E

    90 Degree Engine End Tach Adapter

    $179.00
    $179.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  3. Tach Cables TACH ADAPTER-T

    90 Degree Tachometer End Tach Adapter

    $143.95
    $143.95
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  4. Special Order
    Tach Cables TACH CABLE

    Tachometer Cable, Not FAA-PMA Approved

    $68.95
    $68.95
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  5. UMA UMA 1B1

    Probe Temperature, 1/8" NPT

    $87.95
    $87.95
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  6. 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
  7. UMA UMA 1CU1

    Shunt, -30 to +30 Amps

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

    Shunt, -60 to +60 Amps

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

    Shunt, -100 to +100 Amps

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

    Pressure Sensor, 0-2500 psi

    $224.95
    $224.95
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  11. UMA UMA 2B18

    CHT Probe, J 18mm Spark Plug Type

    $87.95
    $87.95
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  12. UMA UMA 2B20

    EGT Probe, K 1 5/8" - 2 1/2" Hoseclamp

    $99.95
    $99.95
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  13. In Stock
    Universal Corp UN 111

    K-Type EGT Probe

    $64.50
    $64.50
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  14. In Stock
    Universal Corp UN 510

    K-Type CHT Probe

    $64.50
    $64.50
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  15. Westach WES 237-60

    Shunt, 60 Amps

    $56.95
    $56.95
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  16. Westach WES 399OT

    Sender OAT

    $61.50
    $61.50
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  17. Westach WES 399W

    Sender Carburetor Temperature

    $61.50
    $61.50
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  18. Westach WES 712-2DWK

    Probe EGT, Clamp Type, NON-TSO

    $59.95
    $59.95
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  19. Westach WES 712-32DWK

    Probe EGT, Clamp Type

    $59.95
    $59.95
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  20. Westach WES 712-4D2K

    Probe EGT, 1/8" NPT

    $69.95
    $69.95
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  21. Westach WES 712-4WK

    Probe CHT, Gasket 14mm

    $39.95
    $39.95
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  22. Westach WES 712-5WK

    Probe CHT, Gasket 18mm (Non-TSO)

    $39.95
    $39.95
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  23. Westach WES 712-7DK

    Probe CHT, 3/8-24 thread

    $79.95
    $79.95
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  24. JP Instruments JPI EDM OPTION

    Optional Upgrades for EDM Series

    Starting at $85.00

    Starting at

    $86.00

  25. Mitchell MIT BACKPLANE

    Modular Gauge Backplane

    Starting at

    $87.50

    Starting at

    $87.50

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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.