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GM 4 Pin Alternator – 275 Amps


SKU: gm4-275 Category: Tag:

GM 4 Pin Alternator, 275 Amps

P/N: GM-4-275

Max-Amp alternators are the premier alternator on the market.  They are designed for heavy-duty & commercial use and will provide maximum power under the most demanding conditions.  Whether your demands are for any of the conditions noted below, Max-Amp alternators will fill you needs.

  • High amperage (continuous or intermittent demand)
  • Extremely hot conditions (Death Valley hot)
  • High amperage whether idling or at road speed
  • High humidity, wet conditions, chemicals, etc.

This Max-Amp heavy-duty alternator generates more power normal driving speeds and more power at idle than the factory alternator used on the GM Vortec engine.  Note on the chart below where the Max-Amp alternator vastly outperforms the amperage of the stock alternator.

OEM Alternator                     Max-Amp Alternator

Amps @ road speed:                                   145 amps                                  275 Amps

Amps @ Idle                                                    85 amps                                  150 Amps

This alternator is designed to be an exact replacement to the OEM alternator for the 2006 and newer GM® Vortec™ Engines with RVC regulator technology. 

A precision machined, hard anodized pulley made from Aircraft Certified 6061 aluminum is installed on each alternator for maximum output and durability. This alternator comes with full one-year warranty.


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