Power Master CS121 Race Alternator 100 Amp 12V — Fits GM Straight Mount

SKU: BCTD_8062
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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.

Watch in action

High-Performance Power Master CS121 Race Alternator

Engineered for the demands of the track, the Power Master CS121 Race Alternator delivers a consistent 100 amps of power in a compact, lightweight package. Designed specifically for GM applications requiring a straight mount, this unit eliminates unnecessary weight while maintaining the electrical output needed for high-performance ignition and fuel systems.

Key Features and Technical Specs

  • Output: 100 Amps at 12 Volts
  • Design: CS121 Race-style architecture
  • Finish: Durable black powder coat aluminum case
  • Wiring: Simplified 1-wire hookup for cleaner engine bays
  • Mounting: Straight mount configuration
  • Note: Pulley not included

The CS121 series is a favorite among racers who prioritize reliability and efficiency. The rugged aluminum housing ensures excellent heat dissipation, while the black powder coat finish provides superior corrosion resistance against harsh track environments. By simplifying your electrical system with a 1-wire setup, you reduce installation complexity and potential failure points. Whether you are building a drag car or a dedicated circuit racer, this alternator provides the steady voltage required to keep your engine running at peak performance. Trust GGCRACING for your high-performance charging system needs.

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

High-Performance Power Master CS121 Race Alternator

Engineered for the demands of the track, the Power Master CS121 Race Alternator delivers a consistent 100 amps of power in a compact, lightweight package. Designed specifically for GM applications requiring a straight mount, this unit eliminates unnecessary weight while maintaining the electrical output needed for high-performance ignition and fuel systems.

Key Features and Technical Specs

  • Output: 100 Amps at 12 Volts
  • Design: CS121 Race-style architecture
  • Finish: Durable black powder coat aluminum case
  • Wiring: Simplified 1-wire hookup for cleaner engine bays
  • Mounting: Straight mount configuration
  • Note: Pulley not included

The CS121 series is a favorite among racers who prioritize reliability and efficiency. The rugged aluminum housing ensures excellent heat dissipation, while the black powder coat finish provides superior corrosion resistance against harsh track environments. By simplifying your electrical system with a 1-wire setup, you reduce installation complexity and potential failure points. Whether you are building a drag car or a dedicated circuit racer, this alternator provides the steady voltage required to keep your engine running at peak performance. Trust GGCRACING for your high-performance charging system needs.

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

High-Performance Power Master CS121 Race Alternator

Engineered for the demands of the track, the Power Master CS121 Race Alternator delivers a consistent 100 amps of power in a compact, lightweight package. Designed specifically for GM applications requiring a straight mount, this unit eliminates unnecessary weight while maintaining the electrical output needed for high-performance ignition and fuel systems.

Key Features and Technical Specs

  • Output: 100 Amps at 12 Volts
  • Design: CS121 Race-style architecture
  • Finish: Durable black powder coat aluminum case
  • Wiring: Simplified 1-wire hookup for cleaner engine bays
  • Mounting: Straight mount configuration
  • Note: Pulley not included

The CS121 series is a favorite among racers who prioritize reliability and efficiency. The rugged aluminum housing ensures excellent heat dissipation, while the black powder coat finish provides superior corrosion resistance against harsh track environments. By simplifying your electrical system with a 1-wire setup, you reduce installation complexity and potential failure points. Whether you are building a drag car or a dedicated circuit racer, this alternator provides the steady voltage required to keep your engine running at peak performance. Trust GGCRACING for your high-performance charging system needs.

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