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      Engine Gauges

      • Sierra 781-579-035P Amega Series GPS Speedometer
        $158.99
        $110.99

        Sierra 781-579-035P Amega Series GPS Speedometer Features: Dial Range: 0-35 MPH Sender Code: GPS Receiver Size: 3" Included LCD heading display to show course over ground Use our GPS antenna (sold sep) or connect to an existing NMEA 0183 GPS...

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      • Sierra 82301P Heavy Duty Nylon 3.5K Tachometer
        $129.99
        $90.99

        Sierra 82301P Heavy Duty Nylon 3.5K Tachometer Features: Dial Range: 0-3500 RPM Size: 3" Tachometers (Electric): Diesel Signaflex Sender Code: Signaflex Classic white graphics and pointer on deep black face Low-profile polished stainless steel...

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      • Sierra 69725P Eclipse Series OB Twin Engine Gauge Kit
        $123.99
        $86.99

        Sierra 69725P Eclipse Series OB Twin Engine Gauge Kit Features: Gauge Description: Twin Engine Add On OB Gauge Kit Gauges: 2 Gauge set Instruments available for most outboards, stern drives and gasoline-powered inboards Scratch-resistant domed...

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      • Sierra 69724P Arctic Series IB/IO Twin Engine Gauge Kit
        $241.99
        $169.49

        Sierra 69724P Arctic Series IB/IO Twin Engine Gauge Kit Features: Gauge Description: Twin Engine Add On IB/IO Gauge Kit Gauge set: 4 Scratch-resistant domed glass lenses Enhanced illumination: through-dial and perimeter lighting for excellent...

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      • Sierra 69716P Sahara Series Twin Engine OB Gauge Kit
        $125.99
        $88.49

        Sierra 69716P Sahara Series Twin Engine OB Gauge Kit Features: Gauge Description: Twin Engine Add On OB Gauge Kit Gauges: 2 Tan dial and retainer, black graduations and numerals, black pointer with fire-orange tip Scratch resistant curved glass...

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      • Sierra 67669P Lido Pro Series 4 Gauge Set
        $378.49
        $264.99

        Sierra 67669P Lido Pro Series 4 Gauge Set Features: Gauge Description: Instrument Set "OUTBOARD", Includes 4 gauges White dial, black numerals, black pointer with fire-orange tip Scratch resistant curved glass lenses, with polished stainless steel,...

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      • Sierra 65485P Sahara Series 6 Gauge Set
        $364.49
        $254.99

        Sierra 65485P Sahara Series 6 Gauge Set Feature: Gauge Description: Instrument Set "INBOARD/STERNDRIVE" Gauges: 6 Tan dial and retainer, black graduations and numerals, black pointer with fire-orange tip Scratch resistant curved glass lenses, with...

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      • Sierra 65481P Sahara Series 4 Gauge Set
        $283.99
        $198.99

        Sierra 65481P Sahara Series 4 Gauge Set Features: Gauge Description: Instrument Set "OUTBOARD" Gauges: 4 Tan dial and retainer, black graduations and numerals, black pointer with fire-orange tip Scratch resistant curved glass lenses, with black...

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      • Sierra 70003D Matrix Series Primary Fuel Gauge
        $119.49
        $83.49

        Sierra 70003D Matrix Series Primary Fuel Gauge Features: Smart Tachometer CANbus driven LCD on Tachometer and Speedo displays all available data and alarms All 2'' gauges receive data from tachometers IP67 waterproof/ submersible housings (with...

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      • Sierra 70000D Matrix Series Smartcraft Tachometer
        $380.99
        $266.49

        Sierra 70000D Matrix Series Smartcraft Tachometer Features: Smart Tachometer CANbus driven All 2'' gauges receive data from tachometers IP67 waterproof/ submersible housings (with Connector fitted) Dry Nitrogen filled to minimize fogging LED...

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      • Sierra 69994D Matrix Series 40PSI Water Pressure Gauge
        $99.49
        $69.49

        Sierra 69994D Matrix Series 40PSI Water Pressure Gauge Features: Smart Tachometer CANbus driven All 2'' gauges receive data from tachometers IP67 waterproof/ submersible housings (with Connector fitted) Dry Nitrogen filled to minimize fogging LED...

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      • Sierra 69993D Matrix Series Trim Tab Gauge
        $99.49
        $69.49

        Sierra 69993D Matrix Series Trim Tab Gauge Features: Smart Tachometer CANbus driven All 2'' gauges receive data from tachometers IP67 waterproof/ submersible housings (with Connector fitted) Dry Nitrogen filled to minimize fogging LED dimmable,...

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      • Sierra 781-683-035P Arctic Series Speedometer
        $155.99
        $108.99

        Sierra 781-683-035P Arctic Series Speedometer Features: Dial Range: 0-35 MPH Size: 3" Included LCD heading display to show course over ground Use our GPS antenna (sold sep) or connect to an existing NMEA 0183 GPS device - connectors...

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      • Sierra 781-627-035P Black Premier Pro Series Speedometer
        $215.99
        $150.99

        Sierra 781-627-035P Black Premier Pro Series Speedometer Features: Dial Range: 0-35 MPH Size: 3" Included LCD heading display to show course over ground Use our GPS antenna (sold sep) or connect to an existing NMEA 0183 GPS device - connectors...

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      • Sierra 781-579-080P Amega Series Speedometer GPS Gauge
        $141.99
        $98.99

        Sierra 781-579-080P Amega Series Speedometer GPS Gauge Features: Dial Range: 0-80 MPH Sender Code: GPS Receiver Size: 3" Included LCD heading display to show course over ground Use our GPS antenna (sold sep) or connect to an existing NMEA 0183...

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      • Sierra 781-294-060P Argent Pro Series Speedometer
        $170.99
        $119.99

        Sierra 781-294-060P Argent Pro Series Speedometer Contains: Size: 3" Dial Range: 0-60MPH Red Thru-lit and halo illumination for clear night viewing Sender Code: GPS Receiver Easy to read black graphics on a silver dial background Domed scratch...

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      • Sierra 69722P Amega Series Gauge Kit
        $184.99
        $129.49

        Sierra 69722P Amega Series Gauge Kit Contains: Gauge Description: Twin Engine Add On IB/IO Gauge Kit Gauges: 4 Black dial, red graduations, white numerals, vivid white pointer staff Scratch resistant curved glass lenses, with black, near-flush...

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      • Sierra 69713 Eclipse Gauge Kit
        $343.49
        $240.49

        Sierra 69713 Eclipse Gauge Kit Feature: Gauge Description: Instrument Set IB/IO w/Tach/Hr Gauges: 6 Gauge set Instruments available for most outboards, stern drives and gasoline-powered inboards Scratch-resistant domed glass lenses Perimeter...

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      Boat Gauges

      Marine gauges are usually console-mounted to allow boaters an overview of the operations at a glance. Each boat gauges indicates an important boating function such as travelling speed, engine temperature, the number of operating hours, the water depth, fuel level, wind speed, water temperature, oil pressure and the amount of electricity being generated. Trouble is, moisture is the enemy of electronics and can cause them to malfunction or just stop working altogether. When your boat gauges are no longer functioning accurately, replacement is recommended over repair. Here is an overview of how boat owners may troubleshoot their gauges to determine if they are functioning properly.

      To Troubleshoot Temperature, Oil and Fuel Gauges:

        1. Locate engine sending wire and disconnect.  If the needle drops to low-scale, replace the entire unit.
        2. If non-responsive, locate and disconnect the wire from the back of the "S" terminal. Again, if the gauge moves to low-scale, the wiring is grounded, and repair, not, replacement is advised

      To Troubleshoot an Oil Pressure Alarm Switch:

      Use a Volt Meter on this electrical component.

        1. Locate the wire on the switch terminal and disconnect.
        2. Engine must be turned off for this next step: Connect one lead of the multimeter to the sender terminal and connect the other to a ground on the engine.If the switch remains close at low pressure, meter should show continuity (low resistance).
        3. Turn on the engine and check resistance. The pressure switch should open when oil pressure exceeds appx. 5psi. Now the reading should indicate infinite resistance or max scale. If not, replace the unit.

      When you need to upgrade or replace your boat gauges, call Wholesale Marine. We carry the best brands, offer a competitive pricing guarantee and most items flat rate ship the same day. Returns are stress free and we look forward to answering any questions you may have. Make us your one-stop boating shop!  We’re here for you Monday through Friday from 9:00 AM until 6:00 PM EST at (877) 388-2628. Be sure to ask about our Captain’s Club Rewards program for additional discounts the next time you shop at Wholesale Marine!