J2 Fabrication Denso Hairpin Extreme Output GT500


The J2Fab 6 phase hairpin alternator is our premium offering. Rated at 300A these 6phase units offer greater idle output and efficiency than any aftermarket 2007-2014 unit making it the perfect match for your high performance GT500 build.

  • 100% new components and direct bolt in case.
  • Custom rotor/stator to decrease air gap to improve idle output.
  • Balanced rotor and 0 run-out slip rings to improve unit life and eliminate battery light flicker.
  • Heavy duty 12 diode twin rectifier plates
  • Improved air flow to ensure long service life in severe conditions
  • NTN premium and NSK USA bearings.

This unit features an OEM diameter pulley. This pulley is suitable for stock and overdrive balancers with no RPM limit.

270A units require big3 upgrade on all GT500 models.
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Additional information

Weight 16.5 lbs
Dimensions 9 × 9 × 13 in
Add Black Powdercoat

Yes, No

Big3 Cable Kit

Yes, No