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  1. JP Instruments JPI AMP

    AMP Option, for JPI EDM-350

    $150.00
    $150.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  2. JP Instruments JPI RAL

    Remote Alarm Light, for JPI EDM-350

    $92.00
    $92.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  3. JP Instruments JPI 420808

    Non-Pressurized Magneto RPM Sensor, for Bendix Dual Magnetos

    $395.00
    $395.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  4. UMA UMA N1EU100G

    UMA Gauge Pressure Sender, 0-100 psi

    $164.95
    $164.95
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  5. Mitchell MIT PE-000-0360

    36" Tachometer Cable, Not FAA-PMA Approved

    $72.50
    $72.50
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  6. Electronics International EI P-300-M

    Primary Float Type Replacement Fuel Probe

    Price: $950.00
    $30 Mail-In Rebate Through 7/31 - Rebate Form Here
    Price: $950.00
    $30 Mail-In Rebate Through 7/31 - Rebate Form Here
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  7. Electronics International EI CO OPTION

    CO Guardian CO Detector

    $595.00
    $595.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  8. JP Instruments JPI RPM-ELEC IGN

    RPM Option for Electronic Ignition Systems, JPI Option for EDM-350

    $175.00
    $175.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  9. In Stock
    Electronics International EI FT60

    FT-60 Fuel Flow Transducer, for fuel pump-fed up to 350 HP

    $275.00
    $275.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  10. Electronics International EI FT90

    FT-90 Fuel Flow Transducer, for Gravity-fed up to 350-550 HP

    $275.00
    $275.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  11. Special Order
    MGL Avionics MGL CHT10

    Type-K CHT Thermocouple, 10mm, Experimental

    $39.00
    $39.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  12. Special Order
    MGL Avionics MGL CHT12

    Type-K CHT Thermocouple, 12mm, Experimental

    $39.00
    $39.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  13. Special Order
    MGL Avionics MGL CHT14

    Type-K CHT Thermocouple, 14mm, Experimental

    $39.00
    $39.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  14. Special Order
    MGL Avionics MGL CHT18

    Type-K CHT Thermocouple, 18mm, Experimental

    $39.00
    $39.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  15. Special Order
    MGL Avionics MGL CHTBAYO

    Type-K CHT Bayonet, 3/8"-24, Experimental

    $55.00
    $55.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  16. Special Order
    MGL Avionics MGL EGT

    Type-K EGT Thermocouple, M8 x1 Thread, Experimental

    $55.00
    $55.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  17. Special Order
    MGL Avionics MGL EGT CLAMP

    Type-K EGT Thermocouple, Clamp Type, 1.5" & Up, Experimental

    $55.00
    $55.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  18. Special Order
    MGL Avionics MGL FP 7 PSI UM

    UMA Fuel Pressure Sender, 0-7 psi (ROTAX), Experimental

    $155.00
    $155.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  19. Special Order
    MGL Avionics MGL OP VDO

    Oil Pressure Sensor, 150 PSI, VDO 360-004, Experimental

    $74.00
    $74.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  20. Special Order
    MGL Avionics MGL WATER TEMP

    Water Temperature Sender, Experimental

    $29.00
    $29.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  21. Special Order
    MGL Avionics MGL FP100PSIUMA

    UMA Fuel Pressure Sender, 100 psi (Fuel Injected), Experimental

    $155.00
    $155.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  22. Special Order
    MGL Avionics MGL FP35PSI-UMA

    UMA Fuel Pressure Sender, 35 psi (Carbureted), Experimental

    $155.00
    $155.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  23. Special Order
    MGL Avionics MGL EGT CLMP-SM

    Type-K EGT Thermocouple, Clamp Type, Up to 1.5", Experimental

    $55.00
    $55.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  24. In Stock
    Electronics International EI A102

    Instrument Reducer Plate, 3 1/8" to 2 1/4"

    $28.00
    $28.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  25. In Stock
    Electronics International EI A103

    Instrument Reducer Plate, 3 1/8" to 2 1/4" UBG Only

    $21.50
    $21.50
    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.