J2 Fabrication Denso Hairpin Extreme Output 1999-2004 Mustang GT


The J2Fab 6 phase hairpin alternator is our premium offering.  Rated at 270A these 6phase units offer greater idle performance with a higher efficiency than any other unit for your Mustang GT.

  • 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 dampers. No RPM limit on Extreme output alternators.

270A J2Fab units require cable upgrade.

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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