Balmar AT-Series Alternators - Balmar Alternators - Balmar AT-Series Charging Kits - Balmar Alternator Accessories
Balmar AT Series Alternators & Accessories

Balmar AT-Series Alternators & Accessories

The Right Alternator for your Marine Engine

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
  • Ideal for Large Battery Banks
Balmar 6-Series Alternator

Take Advantage of our Competetive Discount Pricing.

We have over thirty years of experience working with our customers to ensure they get the right charging kit and accessories to fit their needs.

AT Series Alternators from Balmar bring together the latest innovation in alternator design to deliver incredible charging power in a compact, Marine-friendly package.

AT Series Alternators feature a unique hairpin-wound stator ...

AT Series Alternators feature a unique hairpin-wound stator design which uses the 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. Beginning in 2016, AT Series Alternators utilize Balmar's SmartReady® Technology, which means they can be used as stand-alone alternators or paired with Max Charge Voltage Regulators.

AT Series Alternators should only be used in Dual Vee or Multi-Groove Serpentine Belt configurations.

Product Documents:

What to consider before you buy...

Before you invest in a high-output charging system, save yourself a lot of trouble and money by ensuring that you buy the correct system for your application. Charging systems vary by type of boat, and a long list of other variables including engine type, engine room space, belt type and size, battery bank size and battery chemistry.

Balmar AT-Series Charging Kits
Balmar AT-Series Charging Kits

All Balmar AT-Series Charging Kits Contain:

  • 1 Alternator
  • 1 Regulator & Wiring Harness
  • 2 Temperature Sensors
Model Number Volts Amps Mounting Pulley Power Take Off
AT-SF-165-DV-KIT 12 165 1 or 2" Spindle Dual Deep Vee 5.2 HP
AT-SF-165-K6-KIT 12 165 1 or 2" Spindle Serpentine 5.2 HP
AT-SF-165-J10-KIT 12 165 1 or 2" Spindle Serpentine 5.2 HP
AT-DF-165-DV-KIT 12 165 3.15" Saddle Dual Deep Vee 5.2 HP
AT-DF-165-K6-KIT 12 165 3.15" Saddle Serpentine 5.2 HP
AT-DF-165-J10-KIT 12 165 3.15" Saddle Serpentine 5.2 HP
AT-SF-200-DV-KIT 12 200 1 or 2" Spindle Dual Deep Vee 6.0 HP
AT-SF-200-K6-KIT 12 200 1 or 2" Spindle Serpentine 6.0 HP
AT-SF-200-J10-KIT 12 200 1 or 2" Spindle Serpentine 6.0 HP
AT-DF-200-DV-KIT 12 200 3.15" Saddle Dual Deep Vee 6.0 HP
AT-DF-200-K6-KIT 12 200 3.15" Saddle Serpentine 6.0 HP
AT-DF-200-J10-KIT 12 200 3.15" Saddle Serpentine 6.0 HP
AT-DF4-200-DV-KIT 12 200 4" Saddle Dual Deep Vee 6.0 HP
AT-DF4-200-K6-KIT 12 200 4" Saddle Serpentine 6.0 HP
Balmar AT-Series Alternators - 1" or 2" Single Foot

Please Note:

The 3 alternator models shown in this section all have the 1" or 2" Single Foot (Spindle) mounting style as shown in the photo.

1″ Motorola-Style Mounting: Typical for Westerbeke, Lehman, Hino & Pathfinder Engines

2″ Delco-Style Mounting: Typical for Perkins, John Deere, Volvo Penta (Gas & Diesel), Mercruiser, Pleasurecraft, Crusader, Indmar, Marine Power & other GM-based Engines

Balmar AT-Series Alternator
Model Number Volts Amps
AT-SF-165-DV 12 165
AT-SF-165-K6 12 165
AT-SF-165-J10 12 165
Balmar AT-Series Alternators - 3.15" Dual Foot

Please Note:

The 3 alternator models shown in this section all have the 3.15" Dual Foot (Saddle) mounting style as shown in the photo.

Typical for Yanmar, Westerbeke, Lehman & Perkins-Sabre Engines

Balmar AT-Series Alternator
Model Number Volts Amps
AT-DF-165-DV 12 165
AT-DF-165-K6 12 165
AT-DF-165-J10 12 165
Balmar AT-Series Alternators - 1" or 2" Single Foot

Please Note:

The 3 alternator models shown in this section all have the 1" or 2" Single Foot (Spindle) mounting style as shown in the photo.

1″ Motorola-Style Mounting: Typical for Westerbeke, Lehman, Hino & Pathfinder Engines

2″ Delco-Style Mounting: Typical for Perkins, John Deere, Volvo Penta (Gas & Diesel), Mercruiser, Pleasurecraft, Crusader, Indmar, Marine Power & other GM-based Engines

Balmar AT-Series Alternator
Model Number Volts Amps
AT-SF-200-DV 12 200
AT-SF-200-K6 12 200
AT-SF-200-J10 12 200
Balmar AT-Series Alternators - 3.15" Dual Foot

Please Note:

The 3 alternator models shown in this section all have the 3.15" Dual Foot (Saddle) mounting style as shown in the photo.

Typical for Yanmar, Westerbeke, Lehman & Perkins-Sabre Engines

Balmar AT-Series Alternator
Model Number Volts Amps
AT-DF-200-DV 12 200
AT-DF-200-K6 12 200
AT-DF-200-J10 12 200
Balmar AT-Series Alternators - 4" Dual Foot

Please Note:

The 2 alternator models shown in this section both have the 4" Dual Foot (Saddle) mounting style as shown in the photo.

Typical for Caterpillar, Cummins, Detroit Diesel & John Deere Engines

Balmar AT-Series Alternator
Model Number Volts Amps
AT-DF4-200-DV 12 200
AT-DF4-200-K6 12 200
Balmar 6-Series Alternators can be paired with TAD's Serpentine Pulley Kits
Serpentine Pulley Kits
Serpentine Pulley Kits
Trans Atlantic Diesels Serpentine Pulley Kits

Available for:

Perkins 4.107, 4.108 and Westerbeke 40 Engines

Perkins 4.236 Engines

Cummins 4B 3.3 Engines