Replaces:
XT-DF-170-J10-3YM-KIT

XT-Series Alternators
Designed for Recreational Applications

• 170A or 250A in a Small Case Package
• Up to 180A at Idle Speeds
• Dual Fan Cooling, High Airflow Frame
• Ideal for Large Battery Banks
• USCG Title 33, ISO 8846 and SAE J1171 Certified
• Patented Smart Ready® Technology
• Dual Fan Cooling, High Airflow Frame
• Ideal for Large Battery Banks

170A
XT-Series
250A
XT-Series
New XT-Series Alternators from Balmar bring together the latest innovations in alternator design to deliver incredible
charging power in a compact, Marine & RV-friendly package.
Advanced Braided Stator
The New XT-Series Alternator family features a state-of-the-art, braided wire stator
design to generate exceptional output in the smallest possible area.

The XT-Series produces more power

The XT-Series produces more power than our previous AT-Series designs and operates 5 °C- 10 °C 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 been 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.

Balmar’s range of AltMount® Serpentine Pulley Conversion Kits supports XT-Series Alternators.