GM 2 Pin Alternator – 390 Amps – XP Series


SKU: gm2-390xp Category: Tag:

GM 2 Pin Alternator, 390 Amps, XP Series

P/N:  GM-2-390XP

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 amps normal driving speeds and more amps at idle than the factory alternator used on the GM Vortec engine.

                                     OEM Alternator                Max-Amp Alternator                  

Amps @ road speed:         145 amps                              390 Amps

Amps @ Idle                          85 amps                              220 Amps

The XP series of Max-Amp alternators are assembled using DENSO components and produce the highest idle output. They feature larger housing while still retaining OEM fitment without any modification required. They run cooler and are virtually indestructible.

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 an unprecedented full two-year warranty.

Weight 24 lbs


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