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  1. JP Instruments JPI 159920

    Shunt, 50 mV / 100 amp

    $67.95
    $67.95
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  2. JP Instruments JPI 3060-17

    Fuel Pressure Sensor, Injected Engine, 5-32 psi, 1/8 NPT

    $182.50
    $182.50
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  3. JP Instruments JPI 3060-18

    Oil Pressure Sensor, 0-160 psi, 1/8 NPT

    $265.00
    $265.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  4. JP Instruments JPI 400505LC

    Oil temperature probe, 1/8 NPT, Lycoming and Continental

    $195.00
    $195.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  5. JP Instruments JPI 400510

    OAT Probe, Thermocouple Type K

    $169.00
    $169.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  6. JP Instruments JPI 420806

    Pressurized Magneto RPM Sensor, for Bendix 20 series

    $369.00
    $369.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  7. JP Instruments JPI 420807

    Pressurized Magneto RPM Sensor, for Bendix 1200 series

    $369.00
    $369.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  8. JP Instruments JPI 420809

    Pressurized Magneto RPM Sensor, for Slick 4000, 6000 series

    $369.00
    $369.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  9. JP Instruments JPI 420815-1

    Standard Magneto Vent Plug RPM Sensor, fits Slick

    $265.00
    $265.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  10. JP Instruments JPI 420815-2

    Standard Magneto Vent Plug RPM Sensor, fits Bendix (Except Dual Magnetos)

    $265.00
    $265.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  11. JP Instruments JPI 5050T

    CHT probe, threaded bayonet

    $106.50
    $106.50
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  12. JP Instruments JPI 604010

    Manifold pressure sensor, 0 to 60 inches Hg, 1/8 NPT

    $269.00
    $269.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  13. JP Instruments JPI 700900-2

    231 Fuel Flow Gravity Fed Transducer, 3-90 GPH

    $379.95
    $379.95
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  14. JP Instruments JPI 700900-1

    201 Fuel Flow Pressure Transducer, 0.6-60 GPH

    $325.00
    $325.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  15. JP Instruments JPI M111

    EGT probe, High Response

    $106.50
    $106.50
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  16. JP Instruments JPI M111CDT

    Compressor discharge probe, 1/8 pipe or clamp

    $165.00
    $165.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  17. JP Instruments JPI M111IAT

    Induction air probe, 1/8 pipe or clamp

    $169.00
    $169.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  18. JP Instruments JPI M111T

    TIT Probe Only, clamp on

    $169.00
    $169.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  19. JP Instruments JPI M113

    CHT probe, spark plug gasket

    $106.50
    $106.50
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  20. JP Instruments JPI M113-38

    CHT Probe with Ring Gasket 3/8"

    $106.50
    $106.50
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  21. JP Instruments JPI 400509

    OIL Temperature Probe, 5/8-18 thread for Primary Instruments

    $195.00
    $195.00
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  22. JP Instruments JPI 400128

    Carburetor Temperature Probe, 1/4-24 Thread

    $173.95
    $173.95
    Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
  23. 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
  24. 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
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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.