Below you will find information on high amp output marine alternators. These units are made in the USA. They carry a limited one year, or with an optional limited lifetime warranty. All of the units are built on a Delco style case. Internally regulated units include a very heavy duty voltage regulator. It senses the battery voltage and supplies the correct amount of charge. It will put out the maximum charge when your batteries are at their lowest charge level. The unit will then drop to a more moderate charge as your battery starts to accept a charge. When the battery comes up to near full charge, the alternator will go to a float charge and remain there, without overcharging your battery. The units are rated at 100 AMPS, and they will deliver a fast charge at low speed. The units are designed to be an easy replacement, without any modifications. The wiring is a simple single wire hookup, and the stator is self-exciting. It is available with both 1 inch & 2 inch mounting foot, as well as a double foot model to replace most Japanese models. It comes with a 2 5/8 inch pulley to insure sufficient R.P.M. at the alternator, so you need not run your engine at high rpm to charge the battery. If your batteries are very low, these units will deliver 70 AMPS at 1200 engine R.P.M. The units have been tested to require only 2.5 hp to operate at full output, saving engine horsepower for the prop.
We are happy to provide technical assistance via phone or email. We recommend that you get assistance from a trained individual, if you are not fluent with electrical systems.
This page was last updated on: November 3, 2008
Part # Mount Type
BS-1 Double Foot
BS-2 Dbl. Foot offset ear
BS-3 Dbl. Foot offset ear
BS-4 Dbl. Foot
BS-5 Dbl. Foot offset ear
BS-6 Dbl. Foot offset ear
BS-7 Dbl. Foot
BS-8 Dbl. Foot
BS-9 Dbl. Foot
BS-202" Single Foot
BS-211" Single Foot
BS-222" Single Foot
BS-231" Single Foot
BS-242" Single Foot
BS-251" Single Foot
BS-261" Single Foot
BS-272" Single Foot offset ear
BS-282" Single Foot
BS-292" Single Foot
BS-302" Single Foot
*For External Regulator Type add Ext. to Part #
Internal Regulator Type are Self-exciting.
Quantity discounts available. Add $25.00 to extend limited warranty for as long as you own your boat.
Scroll down for pricing and application chart.
Each unit is given four coats of a marine grade insulating coating.
These units have stainless steel bearings and hardware where available.
All units are tested prior to shipment. A certificate of testing is included with each unit.
Simple one wire hook-ups on all internal regulator units.