Gauges

  1. 9% off

    Blue Sea Systems AC Digital Voltmeter - 8237

    $291.76
    $262.65
  2. 9% off

    Blue Sea Systems DC Digital Voltmeter - 8235

    $244.84
    $220.42
    0
  3. 9% off

    Blue Sea Systems M2 DC Voltmeter - 1833

    $375.97
    $338.43
  4. 14% off

    Maretron Pressure Transducer

    $235.18 - $269.68
    $211.72 - $256.23
    0
  5. 6% off

    Aqualarm Standard Boat Bell Alarm - 20100

    $68.20
    $63.47
    0
  6. 9% off

    Sea-Dog Rainbow Voltmeter with USB 3.0 & USB-C Power Socket - 426519-1

    $40.60
    $36.60
    0
  7. 9% off

    Blue Sea Systems DC Analog Voltmeter Panel - 8015

    $149.62
    $134.72
    3
  8. 6% off

    Aqualarm Piezo Alarm Buzzer - 20106

    $26.72
    $24.89
    0
  9. 14% off

    Veratron ViewLine -500/+500 RPM Synchronizer - 85 mm (3 3/8")

    $104.10 - $117.90
    $88.57 - $112.38
    0
  10. 9% off

    Blue Sea Systems Micro Analog AC Voltmeter

    $57.16
    $51.51
  11. 19% off

    Raritan Ruddermaster Panoramic Rudder Angle Indicator Kit

    $952.81 - $1,019.06
    $762.37 - $1,019.06
  12. 7% off

    Veratron ViewLine Boost Pressure Gauge - 52 mm (2 1/16")

    $70.98 - $103.20
    $65.32 - $103.20
    0
  13. 9% off

    Blue Sea Systems Digital Voltmeter Panel - 8051

    $338.68
    $304.87
    1
  14. 21% off

    Maretron Pressure Transducer - PT-0-5000PSI-01

    $352.48
    $277.55
    0
  15. 9% off

    Faria Euro White Oil Pressure Gauge - 12902

    $40.62
    $36.61
  16. 9% off

    Faria Professional Red Fuel Level Gauge - 14601

    $68.22
    $61.45
  17. 9% off

    Blue Sea Systems M2 AC Voltmeter - 1837

    $417.37
    $375.69
  18. 9% off

    Blue Sea Systems DC Digital Voltmeter with Alarm - 8251

    $282.10
    $253.95
  19. 19% off

    Faria 6-Gauge Inboard Boxed Set

    $432.57 - $465.69
    $372.68 - $432.57
    0
  20. 6% off

    Aqualarm Low Oil Pressure Detector - 20111

    $27.58
    $25.69
    0
  21. 9% off

    Blue Sea Systems High Temperature Sensor - 1821

    $21.92
    $19.79
    1
  22. 20% off

    Faria Chesapeake SS White 6-Gauge Inboard Boxed Set - KTF063

    $581.60
    $462.94
    0
  23. 6% off

    Aqualarm Fire Panel - 20227

    $40.60
    $37.80
    0
  24. 9% off

    Maretron Pressure Snubber - PT-SNUB-01

    $105.46
    $94.98
    0
  25. 19% off

    VDO Allentare Pitot Speedometer Gauge - Illuminated

    $42.00 - $62.71
    $33.72 - $50.29
    0
  26. 19% off

    VDO Allentare Trim Gauge - Illuminated

    $21.30
    $17.16
    0
  27. 19% off

    VDO Marine Viewline Ivory Oil Pressure Gauge - A2C53413311-S

    $77.88
    $62.42
    0
  28. 19% off

    VDO Marine Viewline Ivory Pyrometer - A2C53210905-S

    $113.94
    $91.28
    0
  29. 19% off

    VDO Marine Viewline Ivory Trim Gauge - A2C53417261-S

    $42.00
    $33.72
    0
  30. 44% off

    Sea-Dog Instrument Hole Adapter - 4"

    $13.00
    $7.28
    0
  31. 19% off

    SeaStar Solutions Amega Series 60A Ammeter - 68356P

    $50.26
    $40.33
    0
  32. 21% off

    SeaStar Solutions Arctic Series 4000 RPM Tachometer - 68373P

    $115.12
    $89.88
    1
  33. 19% off

    SeaStar Solutions Arctic Series Oil Pressure Gauge - 68367P

    $47.50
    $38.12
    1
  34. 19% off

    SeaStar Solutions Arctic Series Water Temperature Gauge - 68376P

    $58.54
    $46.95
    0
  35. 9% off

    Fireboy Waterproof Horn & Strobe Light Kit - WPS-24V

    $450.48
    $405.49
    0
  36. 9% off

    Fireboy External Fire Bell

    $371.82 - $450.48
    $334.70 - $405.50
    0
  37. 14% off

    Veratron ViewLine Transmission Oil Pressure Gauge - 52 mm (2 1/16")

    $72.15 - $106.18
    $61.41 - $106.18
    0
  38. 14% off

    Veratron ViewLine Voltmeter - 52 mm (2 1/16")

    $72.15
    $61.41 - $68.57
    0
  39. 14% off

    Veratron ViewLine Port/Starboard Rudder Angle Gauge - 52 mm (2 1/16")

    $72.15
    $61.41
    0
  40. 19% off

    Faria Chesapeake SS 6-Gauge Inboard Boxed Set

    $462.93 - $464.31
    $371.57 - $462.93
    0

About Gauges

Replace your gauges... .We have what you need!

Boat gauges will fail at some point, and when you are ready for replacement gauges Defender has got you covered! From diesel engine gauges to outboard motor gauges, all you need to do is measure the one you have and order a new one on line!

Custom gauge sets to single gauges for every application at Defender.

Defender offers several boxed sets of marine gauges as well as fuel, speed, tachometers, hour meters and temperature gauges. Digital multi gauges are available as well as single products in black, white or chrome, most with custom bezels. Defender Marine even offers a media player gauge with Bluetooth! Whatever you need you?ll find it here!

Play it safe when replacing your gauges.

Finding the right replacement for your marine gauge at Defender is easy. Our extensive selection includes just about any gauge your boat could ever need. We recommend more research before you order - most gauges are shipped complete, but check your wiring and connections for corrosion and then make a parts list. You'll be happy to have all the parts you need, all available at Defender, before you start installing new marine gauges!