Mechman 400 Amp High Output Alternator 96-04 GM Truck 4.3L - 6.0L (Machined / Raw)

This Listing Includes:

(1) 400 Amp High Output Alternator 1996 - 2004 GM Truck 4.3L, 4.8L, 5.3L, 5.7L, 6.0L

The Elite series 400 amp alternator offers great amperage output and durability at a great price. 6 phase technology, combined with massive twin rectifier assemblies and 12 huge diodes make these alternators totally durable for daily use. These impressive alternators produce 200+ at engine idle RPM and 400+ amps at cruising speeds HOT RATED. Like most high output alternators, this unit comes with a smaller diameter pulley, and will require a 1/2 inch to one inch shorter than stock length belt for proper belt tension in most applications. Installation Notes: This unit may require an additional rectangle to oval adapter harness if the vehicle was originally equipped with the CS144 Heavy duty charging option from the factory. (this is not common) This unit is a direct plug in for any truck originally equipped with the more common oval shaped 4 pin plug as shown.

Installation Notes:

This unit comes equipped with a smaller 1.75 inch diameter alternator pulley, and will require a slightly shorter drive belt for proper belt tension.  Not recommended for sustained use above 5,000 RPM engine speed.

Don't see what you need? Give us a call at 737-BIG-JEFF and let us know what you're looking for! If we're able to satisfy your needs we can do a custom order to get the alternator in stock for you!

*Please note that custom orders can take up to two weeks as they are custom built