Feature Products

The VX range is lighter, stronger & more efficient than any competitor on the market. Offers a maximum pull of 675kg, for boats up to 40'. Kit ...

The Mercury MerCruiser Quicksilver 862031T1 is a 70 amp marine alternator for select GM-based V6 and V8 MerCruiser sterndrive and inboard engines. ...

Black graphics on a brushed aluminum dial background. Pointers are black. Perimeter lighting is provided for night visibility. Domed glass convex l...

Black graphics on a brushed aluminum dial background. Pointers are black. Perimeter lighting is provided for night visibility. Domed glass convex l...

White dial, black graduations/numerals (metrics in blue), red pointer Scratch resistant curved glass lenses, with polished stainless steel, near-f...

Features include: Black graphics on a white face with chrome ring and a black pointer with fire-orange tip.Scratch resistant curved glass lense wit...

Black graphics on a tan dial background light red at night. Very low profile bezels follow the curve of the lens to eliminate water "trapping". Poi...

The Balmar APM provides best-in-class surge protection using the latest technology developed for the automotive industry. It can protect alternator...

12 volt - 55 ampReplaces: Prestolite/Motorola Internal regulatorNegative groundSingle groove pulley2" mounting foot

Fits: MercrusierInternal fan50-mm multi-groove serpentine pulley includedNew

12 volt - 70 amp Self exciting Ignition protection screens internal regulator, negative ground and single groove pulley

Fits: Late model Volvo Penta, 12 Volt, 75 Amp, 50-mm multi-groove. Serpentine pulley included. Replaces: VOLVO 3862665, 3884950, SIERRA 18-5882, 18...

12 volt - 70 amp Self exciting Ignition protection screens internal regulator, negative ground and single groove pulley

Fits: Late model Volvo Penta, 12 Volt, 65 Amp, Multi-groove serpentine pulley included.Replaces: VOLVO 3860082, SIERRA 18-5979

3856600 & 3860171 12 volt - 65 amp Internal Regulator 2-inch mounting foot Single groove pulley included

12 volt, 65 amp Mercruiser 805447T Internal regulator 2-inch mounting foot Single groove pulley included

Mercruiser 807653T 12 volt - 65 amp Internal regulator 2-inch mounting foot Multi-groove serpentine pulley included

12 volt - 55 amp Mercruiser 807652T Internal regulator 2-inch mounting foot Multi-groove serpentine pulley included

Replaces: Mercruiser 817119A1 12 volt - 55 amp Internal regulator Single groove pulley 2" mounting foot

See Sierra's catalog for current application information.

Medium Duty. For use with two or more batteries and single or dual engine systems. Permits selection between batteries for starting and charging or...

350 Ampere continuous rating for inboard gasoline and diesel engines. One-piece tin-plated copper stud design never loosens over time. Terminal stu...

350 Ampere continuous rating for inboard gasoline and diesel engines. One-piece tin-plated copper stud design never loosens over time. Terminal stu...