Sierra 63478P Sterling Voltmeter, 2 Inch Dial, 8-18 Vdc

The Sierra 63478P Sterling Voltmeter is a 2 inch dial gauge built to monitor system voltage from 8 to 18 Vdc aboard boats using 12-volt electrical systems. It is part of Sierra's Sterling line of instrumentation, designed to match other Sterling series gauges such as tachometers, speedometers, fuel gauges, water temperature gauges, oil pressure gauges, and hourmeters for a coordinated helm layout. The gauge face carries a scratch resistant finish to hold up to years of sun exposure and routine wipe-downs at the helm, and the housing is constructed of stainless steel for corrosion resistance in the marine environment.

As a voltmeter, the 63478P gives boaters a continuous readout of battery and charging system health, helping catch a failing alternator, a weak battery, or a wiring issue before it leaves you stranded. Its 2 inch size makes it a straightforward swap into existing 2 inch gauge panel cutouts, and it pairs with Sierra's outboard and sterndrive instrument kits, which are offered separately for tachometer, speedometer, fuel, water temperature, and oil pressure functions. This voltmeter ships as a single gauge, ready to wire into a standard 12-volt marine electrical system.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 63478P
• Product Type: Voltmeter
• Series: Sterling
• Dial Size: 2 inches
• Voltage Range: 8 to 18 Vdc
• Material: Stainless Steel
• Item Dimensions: 8 x 8 x 8 inches
• Weight: 0.3 pounds
• UPC: 731957419569
• Quantity: 1 gauge

Frequently Asked Questions

What voltage range does the Sierra 63478P voltmeter read? The Sierra 63478P Sterling Voltmeter reads from 8 to 18 Vdc, covering the full range of a standard 12-volt marine electrical system including low-battery and high-charging conditions.

What size gauge cutout does the 63478P require? This voltmeter has a 2 inch dial, so it fits standard 2 inch gauge panel cutouts commonly used at the helm.

What is the 63478P voltmeter made of? Sierra builds the 63478P housing from stainless steel, chosen for its resistance to corrosion in the marine environment, and finishes the face with a scratch resistant coating.

Does the 63478P match other Sierra Sterling gauges? Yes, the 63478P is part of Sierra's Sterling series, which includes matching tachometers, speedometers, fuel gauges, water temperature gauges, oil pressure gauges, and hourmeters for a coordinated instrument panel.

How much does the Sierra 63478P voltmeter weigh? The Sierra 63478P Sterling Voltmeter weighs 0.3 pounds.

What are the dimensions of the 63478P voltmeter? The Sierra 63478P measures 8 x 8 x 8 inches as packaged, with a 2 inch dial face.

What comes in the box with the 63478P? The package includes one Sierra 63478P Sterling 2 inch voltmeter; matching Sterling series gauges such as trim gauges and hourmeters are sold separately.

Is the Sierra 63478P suitable for diesel engine setups? The Sterling series gauge kits that the 63478P belongs to are noted as not for diesels, so this voltmeter is intended for gasoline-powered outboard and sterndrive electrical systems.

Can the 63478P be used on both outboard and sterndrive boats? Yes, the Sierra 63478P voltmeter is compatible with Sierra's Sterling outboard kits and sterndrive kits, both of which include a voltmeter as part of their gauge lineup.

Is the Sierra 63478P a genuine Sierra part or aftermarket? The 63478P is a genuine Sierra product carrying the Sierra brand and part number 63478P, backed by Sierra's own customer satisfaction warranty.