Hummer

05-13 PCM Controlled GM TRUCK 4.3 4.8 5.3 6.0 and 6.2 320 amp small case hairpin  This is an internally regulated PCM controlled alternator. 320+ amps at 1800+ rpm 160-170 amps at 600 Rpm. Will have more idle output with a higher idle rpm less with...

This is a 540 amp EXTERNALLY REGULATED alternator for GM applications. External regulator Is included, it comes with our single channel external regulator.   Expect 240-250 amps at idle depending on idle rpm. This is the largest automotive...

96 - 04 GM 4.3, 4.8, 5.3, 6.0, 6.2 truck mount alternators. The Alternator listed is an internally regulated alternator with a setpoint of 14.8V to charge.   all units are built to order, 2-3 weeks is average lead time.

This is a direct fit plug and play option for 97-04 The Alternator listed is an internally regulated alternator with a setpoint of 14.8V to charge. These 270 amp units are some of our most durable, offering 210+ amps at idle rpm of 600!! This will Not...

97-04 GM TRUCK 4.3 4.8 5.3 6.0 and 6.2 320 amp small case hairpin  The Alternator listed is an internally regulated alternator with a setpoint of 14.8V to charge. 320+ amps at 1800+ rpm 160-170 amps at 600 Rpm. Will have more idle output with a...

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.   The...

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.   The...

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.   The...

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.   The...

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.   The...

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.   The...

E Series   Newly redesigned for 2020, The Elite series offers the highest possible amperage and durability available in a large case alternator. 6 phase technology combined with massive twin rectifier assemblies and 12 diodes makes these alternators...