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Gauge Components & Senders

47 Listed

  1. Moeller Reed Switch Tank Sending Unit

    $114.79 - $220.54
    3

  2. Racor Vacuum Gauge with Stainless Steel T-Handle - RK19671

    $182.47
    6

  3. Racor Vacuum Gauge - RK19669

    $260.02
    1

  4. Moeller Electric Fuel Gauge Swingarm Sending Unit Kit - 035726-10

    $103.53
    1

  5. Blue Sea Systems VSM 422 Vessel Systems Monitor Tank Sender

    $151.45 - $185.29

  6. Moeller Electric Fuel Level Sending Unit - 035722-10

    $51.34
    5

  7. Faria Water Temperature Sender

    $37.24 - $59.80
    1

  8. Maretron Fuel Flow Sensor

    $732.39 - $1,695.44
    0

  9. Moeller Electric Sending Unit with Return - 035724-10

    $78.13
    1

  10. Seachoice Fuel Sender Reed Switch

    $71.08 - $238.87

  11. SeaStar Teleflex Oil Pressure Sender - 18-5899

    $48.52
    0

  12. Faria Dual Station Temperature Sender - 1/8" - 90406

    $40.06

  13. Sierra Volvo/Penta Temperature Sender - 18-7647

    $89.41

  14. VDO Marine Oil Pressure Sender - 360-410

    $79.54
    1

  15. Racor Replacement Water in Fuel Detection Kit - RK30880E

    $230.41
    0

  16. SeaStar Teleflex/Sierra Water Temperature Sending Unit - TS26621

    $27.39
    0

  17. Faria Cylinder Head Temperature Sender - 90405

    $42.88

  18. SeaStar Teleflex/Sierra Sportsmen Series Universal Pitot Tube - 56973P

    $17.63
    0

  19. Arco OEM Repalcement Trim Sender - TS001

    $148.63
    0

  20. Faria American Single Standard Temperature Sender - 1/8" - TS1029

    $40.06

  21. Faria Blank Gauge Fill

    $21.79 - $38.67

  22. Seachoice Pitot PVC Tubing - 15381

    $54.16

  23. SeaStar Teleflex/Sierra Universal Fuel Sender - 90424P

    $66.85
    0

  24. Moeller 5-Hole Fuel Sender Gasket with Mounting Screws - 035728-10

    $21.25

  25. Faria European Single Standard Temperature Sender - 1/8" - 90412

    $31.60

  26. Faria Blue Gauge Replacement Bulb (2-Pack) - 2" - KTF052

    $26.74

  27. Racor Pressure and Vacuum Gauge - RK19667

    $298.09
    0

  28. Seachoice Marine Speedometer Pitot Kit - 15391

    $26.44

  29. Seachoice Pitot Tube - 15401

    $17.18

  30. Marinco BEP Ultrasonic Tank Sender - TS1

    $195.16
    0

  31. Seachoice Fuel Tank Sender

    $55.57 - $62.62

  32. Arco OEM Repalcement Outboard Motor Ignition Sender - IG001

    $73.92
    0

  33. Faria Single Station Rudder Angle Sender - 90530

    $619.57

  34. Faria Depth Gauge Air Temperature Sender - TS0101

    $54.16

  35. Faria Oil Pressure Gauge Adapter - 12-24V - 90315

    $14.71

  36. Faria Universal Pitot Kit - 91106

    $59.80
    0

  37. Sierra Temperature Senders for Mercury/Mariner Outboard Motors - 18-5896

    $49.07
    0

  38. Sierra Temperature Sender - 18-5897

    $54.71
    0

  39. Sierra Temperature Sender - 18-5898

    $43.43
    0

  40. Sierra Oil Pressure Senders - 18-5899

    $49.93
    0

  41. Sierra Pitot Tubing - 100' - 56353P

    $113.40

  42. Sierra Fuel Sender Kit - 56948P

    $159.91

  43. Sierra Pack O' Pitots (12-Pack) - 59677P

    $107.76

  44. Sierra Volvo/Penta Temperature Sensor - 18-7513

    $37.24

  45. Racor 500MA/MAM Turbine Series Bowl Ring Kit - RK 15035-01

    $102.10

  46. Racor 900/1000FH Turbine Series Gasket Seal Kit - RK 11-1952

    $76.72
  47. 9% off

    Osculati Mechanical Fuel Level Indicator - 52.037.00

    $35.83
    $32.31

About Gauge Components & Senders

Marine Senders

Boat sending units are designed to measure the amount of fluid in a tank, boat speed, temperature, and a variety of pressure-sensitive gauges. Senders can be replaced with parts from Defender Marine or full sender kits are also available for a variety of applications.

What is a Marine Sender?

Marine senders, or boat sending units, are designed as a simple measuring device that then relays (or sends) this measurement to a marine gauge.

How do you test a marine fuel sender?

Fuel senders can easily be tested with an ohms tester. A variety of fuel senders are available including level arm, swing arm and solid float, and conventional style float switch type senders; all can be tested by reading the ohms output.

Floatless marine senders measure for many different gauges.

Pitot kits measure a boat's speed while more technological speed sending units rely on GPS to garner a constant speed reading. Temperature sending units from Defender Marine measure up to 300 degrees and relay this back to temperature gauges in many applications. Pressure sensors measure essential pressures such as oil pressure in the engine. Newly designed floatless senders measure tank pressure versus fluid capacity.

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