Power Master PowerGEN GM Long 90A Alternator — Fits Universal GM Applications

SKU: BCTD_82051-2
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Power Master

Power Master engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Power Master lineup with fast shipping and expert fitment support — order with confidence.

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Power Master PowerGEN GM Long Alternator

The Power Master PowerGEN Long 90A alternator is the ultimate solution for enthusiasts wanting to hide a modern charging system inside a vintage generator housing. Engineered for GM applications, this unit delivers a robust 90 amps to keep your electrical components running smoothly, all while maintaining the authentic look of a classic generator.

Technical Specifications

  • Output: 90 Amps at 12 Volts.
  • Design: Long-style housing with black powder-coat finish.
  • Ease of Use: 1-wire hookup with integrated lamp terminal.
  • Pulley: Single V-belt pulley included for standard belt drives.
  • Durability: Lightweight aluminum case for improved heat management.

This PowerGEN unit is perfect for street rods and muscle cars where space and aesthetics are critical. By converting to a high-output alternator, you eliminate the charging issues common with older generators, ensuring your battery stays topped off even with modern ignition and lighting systems. The long-style housing provides a direct fit for many GM engine configurations, making it a versatile upgrade for your build. With its sleek black finish, it blends seamlessly into any engine bay, providing a professional, clean appearance. Experience reliable power delivery and improved charging efficiency with this premium component from GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Power Master

Power Master engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Power Master lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Power Master PowerGEN GM Long Alternator

The Power Master PowerGEN Long 90A alternator is the ultimate solution for enthusiasts wanting to hide a modern charging system inside a vintage generator housing. Engineered for GM applications, this unit delivers a robust 90 amps to keep your electrical components running smoothly, all while maintaining the authentic look of a classic generator.

Technical Specifications

  • Output: 90 Amps at 12 Volts.
  • Design: Long-style housing with black powder-coat finish.
  • Ease of Use: 1-wire hookup with integrated lamp terminal.
  • Pulley: Single V-belt pulley included for standard belt drives.
  • Durability: Lightweight aluminum case for improved heat management.

This PowerGEN unit is perfect for street rods and muscle cars where space and aesthetics are critical. By converting to a high-output alternator, you eliminate the charging issues common with older generators, ensuring your battery stays topped off even with modern ignition and lighting systems. The long-style housing provides a direct fit for many GM engine configurations, making it a versatile upgrade for your build. With its sleek black finish, it blends seamlessly into any engine bay, providing a professional, clean appearance. Experience reliable power delivery and improved charging efficiency with this premium component from GGCRACING.

Product Details

Product Description

About Power Master

Power Master engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Power Master lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Power Master PowerGEN GM Long Alternator

The Power Master PowerGEN Long 90A alternator is the ultimate solution for enthusiasts wanting to hide a modern charging system inside a vintage generator housing. Engineered for GM applications, this unit delivers a robust 90 amps to keep your electrical components running smoothly, all while maintaining the authentic look of a classic generator.

Technical Specifications

  • Output: 90 Amps at 12 Volts.
  • Design: Long-style housing with black powder-coat finish.
  • Ease of Use: 1-wire hookup with integrated lamp terminal.
  • Pulley: Single V-belt pulley included for standard belt drives.
  • Durability: Lightweight aluminum case for improved heat management.

This PowerGEN unit is perfect for street rods and muscle cars where space and aesthetics are critical. By converting to a high-output alternator, you eliminate the charging issues common with older generators, ensuring your battery stays topped off even with modern ignition and lighting systems. The long-style housing provides a direct fit for many GM engine configurations, making it a versatile upgrade for your build. With its sleek black finish, it blends seamlessly into any engine bay, providing a professional, clean appearance. Experience reliable power delivery and improved charging efficiency with this premium component from GGCRACING.

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