GM Racing High Output Alternators 170, 240, 300amp



True 1/0 Pure Copper Big 3 Wiring Upgrade kit

1/0 Pure Copper cable.
48″ Positive, 34″ Ground, 32″ Ground
All cables include copper lugs crimped & heat shrinked.
Big3 is required for all high output alternators,

Include Powder Coating?

Select color below.

Js-Alternators 8″ decal

SKU: 123456 Categories: , ,


Hairpin units are commonly called 6 phase. They produce more output at idle and are more efficient than a conventional alternator. JS Alternators hairpin units feature premium bearings to withstand high engine rpm and utilize dual plate rectifier with 12 heavy duty diodes for improved cooling. Hairpin Units are a more reliable alternator to withstand high heat, high demand for car audio, marine, and racing applications.
the 170 and 240amp performs great down to 500rpm.
the 300amp performs great at 750rpm or higher.
*When ordering select A for v-belt or B for serpentine belt. These units are 12 and 6 oclock mounts.

Additional information

Weight 14 lbs
Dimensions 9 × 9 × 9 in

A, B


JS Alternators


170 amps hairpin, 240 amps 6 Phase Hairpin, 300 amps 6 phase hairpin




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