Designed for Recreational Applications

  • 165A or 200A in a Small Case Package
  • Up to 125A at Idle Speeds
  • 25% More Efficient
  • Dual Fan Cooling
  • High Airflow Frame
  • Maximum RPM: 10,000
  • Ideal for Large Battery Banks

AT (“Advanced Technology”) Series Alternators from Balmar bring together the latest innovations in alternator design to deliver incredible charging power in a compact, Marine-friendly package.

Advanced Hairpin StatorAT-Series Alternators feature a unique hairpin-wound stator design which uses densely wound square copper wire to generate exceptional output in the smallest possible area. Hairpin-wound stators feature 96 slots – compared to 36 slots in a traditional S-wound stator – allowing the hairpin-wound stator to develop superior electromagnetic energy and efficiency superior to other traditional stator designs. 

AT-Series Alternators also feature a dozen 50A capacity, externally mounted avalanche diodes, dual internal fans, and massive heat sinking designed to ensure essential cooling under high load demands. Scaled to fit in most original position installations, AT-Series Alternators are available in all four common mounting styles. View a chart of complete alternator dimensions here.

AT-Series Alternators should only be used in Dual Vee or Multi-Groove Serpentine belt configurations. Balmar’s growing range of AltMount® Serpentine Pulley Conversion Kits support all AT-Series Alternators


Take Off



 Individual Alternator 
Part Number(2)


Alternator Kit with
 Max Charge Regulator(1) 


Pulley Kit

 165 A  5.2 HP 1-2″ Single Foot 
    AT-SF-165-DV     AT-SF-165-DV-KIT    


  If a Dual Vee or 
Serpentine Pulley
is Not Already

See the

 AT-SF-165-K6 AT-SF-165-K6-KIT
AT-SF-165-J10 AT-SF-165-J10-KIT
 3.15″ Dual Foot 
AT-DF-165-DV  AT-DF-165-DV-KIT
AT-DF-165-K6  AT-DF-165-K6-KIT
AT-DF-165-J10  AT-DF-165-J10-KIT
 200A 6.0 HP
 1-2″ Single Foot 
    AT-SF-200-DV     AT-SF-200-DV-KIT    
AT-SF-200-K6  AT-SF-200-K6-KIT
 AT-SF-200-J10 AT-SF-200-J10-KIT
3.15″ Dual Foot 
AT-DF-200-DV  AT-DF-200-DV-KIT  
AT-DF-200-K6   AT-DF-200-K6-KIT 
 AT-DF-200-J10 AT-DF-200-J10-KIT 
4″ Dual Foot 
AT-DF4-200-DV   AT-DF4-200-DV-KIT  
AT-DF4-200-K6    AT-DF4-200-J10-KIT 

(1) Kit includes AT-Series Alternator, Max Charge Regulator (MC-614-H) and Temperature Sensors (MC-TS-A, MC-TS-B).
(2) The AT-Series Alternator may require a Tachometer Signal Stabilizer (15-TSS) if your current tachometer is not adjustable.