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

Balmar XT-Series Alternators & Accessories

The Right Alternator for your Marine Engine

Designed for Recreational Applications

  • 170A & 250A in a Small Case Package
  • Patented Smart Ready® Technology
  • 25% More Efficient
  • Dual Fan Cooling
  • High Airflow Frame
  • Ideal for Large Battery Banks
  • USCG Title 33, CE, ISO 8846 and SAE J1171 Certified
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.

XT-Series Alternators from Balmar bring together the latest innovations in alternator design to deliver incredible charging power in a compact, marine-friendly package.

XT-Series Alternators family features a state-of-the-art, braided wire stator design to generate exceptional output in the smallest possible area. The XT-Series produces slightly more power than our previous AT-Series 165A design and operates 5o-10oC cooler. In addition, we’ve added Balmar’s Smart Ready® internal regulator technology to provide an additional level of fault tolerance for cruising boaters. Available XT-Series mounting styles have also expanded to include the “Vortec” 9Si design found on many GM gasoline engines.

XT-Series Alternators feature 96 slots – compared to 36 slots in a traditional S-wound stator – allowing the stator to develop superior electromagnetic energy and efficiency compared to traditional stator designs. The XT-170 and XT-250 are designed to deliver superior performance at idle speeds – up to 128A and 186A, respectively for 12V applications.

XT-Series Alternators may require a Tachometer Signal Stabilizer (Part No. 15-TSS) if your current tach is not adjustable. XT-Series Alternators should only be used in Dual Vee or Multi-Groove Serpentine belt configurations.

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 XT-Series Charging Kits
Balmar AT-Series Charging Kits

All Balmar XT-Series Charging Kits Contain:

  • 1 Alternator
  • 1 MC-618 Regulator
  • Temperature Sensors
  • Mounting Hardware

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

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

3.15” Dual Foot (Saddle Mount) “Hitachi Style” Balmar 60 Series

4” Dual Foot (Saddle Mount) “J-180 Style” Balmar 604 Series

Model Number Volts Amps Mounting Pulley Power Take Off
XT-SF-170-DV-KIT 12 170 1 or 2" Spindle Dual Deep Vee 5.2 HP
XT-SF-170-K6-KIT 12 170 1 or 2" Spindle Serpentine 5.2 HP
XT-SF-170-J10-KIT 12 170 1 or 2" Spindle Serpentine 5.2 HP
XT-DF-170-DV-KIT 12 170 3.15″ Dual Foot Dual Deep Vee 5.2 HP
XT-DF-170-K6-KIT 12 170 3.15″ Dual Foot Serpentine 5.2 HP
XT-DF-170-J10-KIT 12 170 3.15″ Dual Foot Serpentine 5.2 HP
XT-SF-250-DV-KIT 12 250 1 or 2" Spindle Dual Deep Vee 6.6 HP
XT-SF-250-K6-KIT 12 250 1 or 2" Spindle Serpentine 6.6 HP
XT-SF-250-J10-KIT 12 250 1 or 2" Spindle Serpentine 6.6 HP
XT-DF-250-DV-KIT 12 250 3.15″ Dual Foot Dual Deep Vee 6.6 HP
XT-DF-250-K6-KIT 12 250 3.15″ Dual Foot Serpentine 6.6 HP
XT-DF-250-J10-KIT 12 250 3.15″ Dual Foot Serpentine 6.6 HP
XT-DF4-250-DV-KIT 12 250 4″ Dual Foot (Saddle) Serpentine 6.6 HP
XT-DF4-250-K6-KIT 12 250 4″ Dual Foot (Saddle) Serpentine 6.6 HP

Identify the Alternator Mounting Style Present on Your Engine

It is critically important to determine how your existing alternator is mounted to match with the high output alternator you have chosen. Marine alternator mountings generally fall into one of four possibilities.

The most common mounting styles are shown below:

Balmar Mounting Styles

(A) 1” Single Foot (Spindle Mount) “Motorola Style” Balmar 621 Series

(B) 2” Single Foot (Spindle Mount) “Delco Style” Balmar 621 Series

(C) 3.15” Dual Foot (Saddle Mount) “Hitachi Style” Balmar 60 Series

(D) 4” Dual Foot (Saddle Mount) “J-180 Style” Balmar 604 Series

Balmar XT-Series Alternators - 1" or 2" Single Foot

Please Note:

The 6 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 XT-Series Alternator
Balmar XT-Series Alternators - 3.15" Dual Foot

Please Note:

The 6 alternator models available 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 XT-Series Alternator
Balmar XT 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