GMC

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...

G Series Based on our late model large case GM housings, the tried-and-true G series of alternators are our best sellers. Reasonably priced, these units feature solid copper custom rectifiers with huge 65 amp diodes for great durability. Premium bearings...

G Series Based on our late model large case GM housings, the tried-and-true G series of alternators are our best sellers. Reasonably priced, these units feature solid copper custom rectifiers with huge 65 amp diodes for great durability. Premium OEM...

The S series of 6 phase alternators offers incredible low RPM output in a compact and durable package. Highly efficient, these units use less horsepower than conventional 3 phase alternators. 12 diodes, twin rectifier plates and outstanding airflow...

Installation Notes: This unit comes equipped with a smaller 1.75 inch diameter alternator pulley, and will require a LONGER (Dayco 5060775 ) drive belt for proper belt tension.  Not recommended for sustained use above 5,000 RPM engine...

G Series Based on our late model large case GM housings, the tried-and-true G series of alternators are our best sellers. Reasonably priced and very durable, these units feature solid copper custom rectifiers for great durability. Oversize press fit...

The Elite series 250 amp alternator offers great output at idle RPM and excellent durability in a direct-bolt-in package. 6 phase technology, combined with massive twin rectifier assemblies and 12 diodes makes these alternators totally durable for daily...

The S series of 6 phase alternators offers incredible low RPM output in a compact and durable package. Highly efficient, these units use less horsepower than conventional 3 phase alternators. 12 diodes, twin rectifier plates and outstanding airflow...