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  1. J2 Fabrication Denso-Style Hairpin EXTREME OUTPUT Alternator (03-04 Cobra, GT500, Coyote & 3V)
    $475.00

    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 ships with a 69mm pulley and is suitable for stock to 6LB lowers. If you have a larger pulley or spin in excess of 7600rpm with a 6LB lower please specify in your order notes or tell your sales representative when placing your order. No RPM limitation on stock, 2lb, or 4lb lower pulley


    270A J2Fab units REQUIRE cable upgrade.

    Call for availability, could potentially take up to 2 weeks to ship.

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  2. J2 Fabrication Denso Hairpin High-Output Alternator (03/04 Cobra)
    $375.00

    Rated at 185A peak these units offer greater idle performance (up to 140A) with a higher efficiency than our standard Motorcraft 3phase units making them the perfect replacement for our highly successful 200A 6G product line.
    When compared to our 200A 6G this unit has an idle output 27% greater, will reach peak output 50% sooner, and will hold its peak output longer making it superior to the old J2Fab-200A and any other 3G or 6G Cobra unit in every practical way

    Ideal for cars with high draw from fuel system, A2W trunk mounted pump, H/E fans, stereo, or OEM Cobra’s just looking for an upgrade/replacement with much greater longevity and resistance to overheating!

    Customers running a combination of fuel system, Stewart EMP, electric WP, H/E fans and more, please see our 270A Extreme Output.

    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 ships with a 69mm pulley and is suitable for stock to 6LB lowers.  If you have a larger pulley or spin in excess of 7600rpm with a 6LB lower please specify in your order notes or tell your sales representative when placing your order. No RPM limitation on stock, 2lb, or 4lb lower pulley.

    185A J2Fab units REQUIRE cable upgrade. Call for availability, could potentially take up to 2 weeks to ship.

    Learn More
  3. PA Performance 03-04 Cobra 130 Amp Alternator
    $299.99

    PA Performance 03-04 Cobra 130 Amp Alternator

    130 AMP 6G Family Alternator

    **Pulley Not Included** Please choose correct pulley size according to the pulley combination you run on your car.

    This is a very popular replacement where slightly increased capacity is needed. This unit will increase the charging capacity at all RPM Ranges with NO modifications.

    • Common on Ford DOHC Applications in 2003 & 2004 only and 3.8L applications from 2001 - 2004
    • This unit is a direct replacement with NO modifications
    • 70 amps at idle @ 950 rpm (90 on HO option)
    • 130 amps maximum @ 3000 rpm (170 on HO option)
    • The stock belt can be used on original equipment vehicles
    • Actual Alternator Weight is 12.9 lbs
    • All units are 100% NEW and come complete with internal voltage regulator.

      Custom Colors Available
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  4. PA Performance 03-04 Cobra 170amp Alternator
    $379.00

    PA Performance 03-04 Cobra 170amp Alternator

    **Pulley Not Included** Please choose the correct pulley size according to the specific combination you run on your car.

    **THE 170 AMP ALTERNATOR IS ONLY USED FOR THOSE RUNNING HIGH WATT AFTERMARKET STEREO ACCESSORIES**

    This is a very popular replacement where slightly increased capacity is needed. This unit will increase the charging capacity at all RPM Ranges with NO modifications.

    • Common on Ford DOHC Applications in 2003 & 2004 only and 3.8L applications from 2001 - 2004
    • This unit is a direct replacement with NO modifications
    • 90 amps at idle @ 950 rpm
    • 170 amps maximum @ 3000 rpm
    • The stock belt can be used on original equipment vehicles
    • Actual Alternator Weight is 12.9 lbs
    • All units are 100% NEW and come complete with internal voltage regulator.
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  5. PA Performance 99-04 GT / 03-04 Cobra 4 Gauge Power Wire Upgrade Kit
    $49.00

    This is a complete kit to upgrade the main power feed wire from the alternator to the vehicle on most Fords. Basically, the OEM wire from the alternator to the vehicle was not designed to carry the added load of higher amp alternators. If you use the stock wires again or not is your choice, but using this large (#4 Gauge) wire kit will add the safe carrying capacity needed for lengths up to 10 feet. When using our high output alternators you must upgrade this cable to retain warranty coverage.

    For vehicles where the alternator and starter relay/battery are on the same side of the vehicle, the SHORT kit is required. Examples would be 85 and older Mustang 5.0, early 90's and older F-Series

    SHORT Kits include: large #4 ultra-flexible Stereo Grade wire with sealed 360° crimped terminals, 200 amp in-line fuse and holder with mounting screws. Red cable shown, all cables after 06/06/2007 are clear jacket.

    We offer two wire types:

  6. Premium - which is made of the highest quality wire, with increased number of strands, electrolytic copper and bundle wrapping to reduce noise in high end sound systems while being incredibly flexible and show quality
  7. Standard – which is made of high-grade wire. This wire offers outstanding performance, cosmetics and flexibility at a reasonable price. It looks like the Premium wire but is not electrolytic copper. Most people building horsepower only cars use this option.
  8. These kits can also be used on upgrades utilizing alternators from any other manufacturer with a 3/16-threaded battery (+) stud from the alternator. The ring terminal on the alternator side is 1/4 I.D.

    #4 gauge wire kits are recommended on all upgrades but required when upgrading any 1993 or older vehicle with a 130-amp or 200-amp alternator

    All kits are provided with 200-amp Littlefuse Brand Fuse and Holder. Based on Littlefuse performance specifications and tolerances this is the appropriate rating. Please do not increase or decrease the fuse amperage value

    THESE KITS ARE NOT INTENDED TO REPLACE THE OEM WIRE – but are large enough to work without the stock wire in race / kit applications where there is no other wiring to upgrade. There are many opinions on the internet about cable use. By using both the stock and the larger cable, everything that worked before the upgrade will still work. The bottom line, at least you must use the #4 wire kit when upgrading alternators

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