Balmar | XT-250A Vortec Alternator Kit with MC Regulator - Temperature Sensors & K6 Pulley
Balmar | XT-250A Vortec Alternator Kit with MC Regulator, Temperature Sensors & K6 Pulley
The Balmar XT-250A Vortec Alternator Kit delivers powerful and efficient charging performance for marine, RV, and specialty vehicle applications. Featuring a 250A high-output alternator, advanced MC multi-stage regulator, temperature sensors, and K6 pulley, this complete kit ensures optimal battery charging, safety, and long-term reliability even in demanding environments.
KEY FEATURES
- High-output 250A alternator – Provides exceptional charging capacity for large battery banks and high-demand systems.
- Advanced multi-stage regulation – MC regulator optimizes charging for lithium, AGM, gel, and flooded batteries.
- Integrated temperature sensors – Includes alternator and battery sensors for enhanced safety and performance.
- High-efficiency output – XT-Series design delivers strong power at low engine RPMs.
- Durable marine-grade build – Corrosion-resistant construction ensures reliability in harsh environments.
- Ideal for marine and RV setups – Perfect for vessels, off-grid systems, and specialty vehicles.
- Complete installation package – Includes pulley, sensors, and regulator for quick setup and easy integration.
Specifications
| Alternator Style | Small Case, Positive Field Excitation (P-Type) |
| Mounting Styles | XT-VT Series: Delco Vortec Style XT-SF Series: 1” or 2” Single Foot (Spindle) XT-DF Series: 3.15” Dual Foot (Saddle) XT-DF4 Series: 4” Dual Foot (Saddle) (XT-250 Only) |
| Regulation | External P-Type (MC-618) |
| Internal Regulation | Smart Ready® Internal Voltage Regulator |
| Cooling | Dual Internal Fans |
| Positive Output | Threaded Stud |
| Dimensions | XT-170 & XT-250: M8 x 1.25 |
| Bearings | Sealed Bearings, Heavy Duty Radial (Front & Rear) |
| Grounding | Case Ground (XT-170 Isolated Ground Available on Request) |
| Case Construction | Ventilated Cast Aluminum |
| AC/Stator Output | 16 Poles |
| Stator Output Wire | Included in Pigtail Plug |
| Finish | Red Powder Coat |
| Diodes | 6 Positive, 6 Negative; 50A Rated |
| Tensioning Arm Mount | XT-250 (Not Applicable); XT-170: Five Position Crown (3x M8 x 1.25, 2x 8mm) |
| Smart Ready® Voltage Regulation | 14.1 Volts (12V Systems) |
| Mounting Foot Bore | XT-VT, DF, SF 2”-Series: 10mm (3/8”) XT-SF 1”, DF4-Series: ½” |
| Cut-In RPM | 170A: 1,150 RPM 90A & 250A: 1,350 RPM |
| Max Alternator RPM | 18,000 RPM |
| Ignition Protection Ratings | USCG Title 33, SAE J1171, CE, ISO 8846 |
| Normal Operating Temperature | 180°F / 82°C |
| Max Operating Temperature | 225°F / 108°C |
Manuals & Downloads
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XYZ Battery | 48V 100AH (REFURBISHED)
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