The open ocean is no place for charging failure.

That’s why Whitbread racers, world cruisers, top boat builders and the U.S. Coast Guard all look to Balmar premium marine alternators for high-output performance and solid reliability. Balmar marine alternators are built to provide optimum charging capacity at lower rpm’s, so you’ll enjoy increased economy, shorter charging cycles and increased battery life. Small and large-case Balmar alternators are constructed expressly for rugged marine use -- incorporating extra tough materials for maximum resistance to salt and corrosion. White powder coating ensures that your alternator will remain in "ship shape" long after it's installed in your engine room.

No matter what your charging application, there's a Balmar alternator that's just the right size and amperage to get the job done right. Small-case alternators for direct OEM replacement -- to extra-large auxiliary alternators -- provide amperage outputs ranging from 50 amps, to a whopping 310 amps of charging power.

 Our small case alternators are ideal for direct OEM replacement on most small to medium horsepower marine diesel and/or gasoline engines. To see what small case model is best for your engine, see table below:

 Small Case Alternators

80-Series Alternators
Available in 50, 65, or 100-amp outputs, 80-Series alternators are constructed to meet the specific demands of sport fishers, sport cruisers and trailer boats. All 80-Series alternators feature isolated grounds, sealed brushes and comply with USCG, SAE J1171, and ISO 8846 ignition protection standards for gasoline or diesel engines. Available in 1'' (81-Series) or 2'' (812-Series) single-foot mounts.

90, 91 & 912-Series 12-Volt Small Case Alternators
True marine construction and an impressive output at lower engine RPMs consistent with diesel engines have made our small-case alternators favorites among recreational and commercial boaters. Available in 75, 100, and 150-amp single and dual outputs, these alternators feature heavy-duty internal components and durable powder-coat finishes for years of reliable offshore service. Three mounting styles: 1'' (91-Series), 2'' single-foot (912-Series), and 3.15'' (90-Series) dual-foot models are compatible with a wide range of marine engine types.

90, 91 & 912-Series 24-Volt Small Case Alternators
Small case, 24-volt alternators provide an excellent high-output replacement or upgrade for 24-volt charging systems. Available in 65- and 80-amp single and dual outputs, these alternators feature heavy-duty internal components and durable powder-coat finishes for years of reliable offshore service. Three mounting styles: 1'' (91-24 Series), 2'' single-foot (912-24 Series), and 3.15'' (90-24 Series) dual-foot models are compatible with a wide range of marine engine types. Dimensions are identical to their 12-volt counterparts (see dimensions of 90, 91, and 912-Series alternators for measurements). All models are available in case ground or isolated ground configurations. See 24-volt power curves below.

 

LARGE CASE ALTERNATORS

94 to 98-Series Large & XL Case Alternators
Designed specifically for high-amperage house loads, these large-capacity alternators are ideal for long-range cruising and commercial applications -- where battery and inverter demands require maximum charging capacity. Available in 12V, 24V and 32V configurations, with a wide variety of amperage ratings, these large case and extra-large case alternators feature 2'' single-foot, or 4'' I.D. dual-foot mounts. Many models feature isolated grounds. Some models include Dual Delta Stators for greater charging efficiency. Single and dual-output models available. Many models feature heavy-duty brush less construction.

94-Series Large Case Alternators
Ideal for large case installations where a 2" single-foot configuration is required -- Balmar 94-Series alternators are available in varying amperages and voltages to meet most charging requirements. Some 94-Series models include dual delta stators, isolated grounds, or special pulleys to complement specific engine and application types. All models include heavy, marine-duty components and a durable white powder coat finish for superior rust and corrosion resistance. Models featuring "100A+ @ idle" under the Product Notes heading are engineered to provide optimal charging at lower engine R.P.M., making them ideal for trolling or charging while anchored. The following chart describes the qualities and features of the 94-Series models