High-output Alternator Optimised for Marine Battery Charging Systems

The Balmar XT-Series 170A Alternator delivers exceptional charging performance for marine or RV applications where high power output at low engine speeds is critical. Featuring an advanced braided wire stator, Smart Ready® internal regulation, and a compact 4-inch dual foot saddle mount, this unit is purpose-built for demanding battery systems and continuous duty cycles.

Key Features

  • High Output at Idle: Capable of delivering up to 128A at idle speeds, reducing battery drain in low-RPM conditions.
  • Smart Ready® Technology: Integrated internal regulator provides added fault tolerance and system flexibility.
  • Dual Fan Cooling: Ensures lower operating temperatures for improved efficiency and alternator life.
  • Advanced Stator Design: 96-slot braided stator maximises electromagnetic output within a small footprint.
  • Compact and Durable: Small-case alternator with ventilated cast aluminium body and sealed bearings.
  • Certified Ignition Protection: Complies with USCG Title 33, ISO 8846, SAE J1171 and CE standards.
  • External Regulation Compatible: Works with Balmar’s Max Charge MC-618 regulator for multistage charging.
  • Installation Versatility: 4-inch dual foot saddle mount suitable for a wide range of diesel and petrol engines.
  • Dual Pulley Ready: Supports DV, K6, or J10 pulley configurations depending on application.
  • Tachometer Signal Option: May require signal stabiliser (15-TSS) if tach is not adjustable.

Engineered for maximum charging efficiency and long-term reliability, this alternator is ideal for boats and vehicles with large battery banks.

Product Specifications
Series XT-Series
Output Current 170A
Voltage 12V
Mounting Type 4” Dual Foot (Saddle)
Pulley Compatibility Dual Vee (DV), K6, J10
Cooling Dual internal fans
Regulator Internal Smart Ready®, External P-Type
Smart Ready Voltage 14.1V
Cut-In RPM 1,150 RPM
Max RPM 18,000 RPM
Ignition Protection USCG Title 33, SAE J1171, ISO 8846
Case Material Ventilated cast aluminium
Mounting Bore ½”
Dimensions (Length x Height) 7.17” x 9.61”
Weight Not specified
SKU BAL.XT-DF4-170-DV
Model # XT-DF4-170-DV
Brand Balmar
Shipping Weight 15.0000kg
Shipping Width 0.203m
Shipping Height 0.254m
Shipping Length 0.228m
Shipping Cubic 0.011756136m3
Unit Of Measure ea

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