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  1. Alcor ALC 42535

    Alcor CHT Type J Extension Lead, 90″

    $58.95
    $58.95
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  2. Alcor ALC 46150

    Alcor EGT Type K Indicator, 2-1/4″

    $305.00
    $305.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  3. In Stock
    Alcor ALC 86240

    Alcor EGT/TIT Type K Thermocouple Probe, 7/16″-20 Screw-In

    $121.95
    $121.95
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  4. In Stock
    Alcor ALC 86245

    Alcor EGT/TIT Type K Thermocouple Probe, 7/16″-20 Screw-In Reverse Stagger

    $119.95
    $119.95
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  5. Alcor ALC 86251

    Alcor CHT Type J Thermocouple Probe, Bayonet

    $109.95
    $109.95
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  6. In Stock
    Alcor ALC 86255

    Alcor EGT/TIT Type K Thermocouple Probe, Clamp 3-3/8″ Max

    $121.95
    $121.95
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  7. Electronics International EI S300

    External Shunt S-300, 100 amps or More, Electronics International

    $55.00
    $55.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  8. Through 8/30 / Shown with Discount
    JP Instruments JPI FF-201-760-790

    Fuel Flow option for EDM-760/790, With (2) 201 transducers, Harness included

    Price: $1050.00 - After $200 Instant Rebate
    Price: $1050.00 - After $200 Instant Rebate
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  9. Through 8/30 / Shown with Discount
    JP Instruments JPI FF-231-760-790

    Fuel Flow option for EDM-760/790, With (2) 231 transducers, Harness included

    Price: $1050.00 - After $200 Instant Rebate
    Price: $1050.00 - After $200 Instant Rebate
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  10. JP Instruments JPI FF-760-790

    Fuel Flow option for EDM-760/790, Without transducers, Harness included

    $875.00
    $875.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  11. In Stock
    Electronics International EI OLC-2

    EI OLC-2 Overlap Connector

    $2.50
    $2.50
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  12. Electronics International EI VA-1A-XX

    EI VA-1A - Volt-Ammeter, for External Shunt (No Shunt)

    Price: $395.00
    See Related Products for External Shunts
    Price: $395.00
    See Related Products for External Shunts
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  13. JP Instruments JPI OT-TWIN

    Oil Temperature Probe with Harness, JPI Option for EDM 790/760

    $379.00
    $379.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  14. In Stock
    Alcor ALC 42528

    Alcor EGT Type K Extension Lead, 216″

    $84.95
    $84.95
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  15. Mitchell MIT PS-211-8160

    OAT Temperature Sender, 1/8" NPT Thread

    $39.50
    $39.50
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  16. In Stock
    Hobbs EDM 76577-4

    5000 Series Pressure Switch, with Standard Terminal

    $93.95
    $93.95
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  17. JP Instruments JPI 159938

    Fuel Pressure Differential, 0-100 PSIG, TSO

    $865.00
    $865.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  18. Westach WES 237-30

    Shunt, 30 Amps

    $56.95
    $56.95
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  19. In Stock
    Electronics International EI P110 F

    Probe EGT/TIT Hose Clamp Type, Fast Response for .130" Hole

    $120.00
    $120.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  20. JP Instruments JPI FP-STD

    Non-Turbo Fuel Pressure Kit, JPI Option for EDM-350

    $320.00
    $320.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  21. JP Instruments JPI FP-TURBO

    Fuel Pressure Kit, for Turbo Charged Engines, JPI Option for EDM-350

    $450.00
    $450.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  22. JP Instruments JPI FF-350

    Fuel Flow option for EDM-350, With transducer, Harness included

    $475.00
    $475.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  23. JP Instruments JPI FF-350PC

    Pressure Carb Fuel Flow Option, for JPI EDM-350

    $595.00
    $595.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  24. JP Instruments JPI FL

    Fuel Level 2-Tank Option (L/R Main), Resistive or Voltage, for JPI EDM-350

    $250.00
    $250.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  25. JP Instruments JPI FL-F

    Frequency Fuel Level 2-Tank Option (L/R Main), Frequency Sender, for JPI EDM-350

    $350.00
    $350.00
    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.