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Thread: best alternator for an eaton swap?

  1. #1
    Join Date
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    Newport Beach, CA
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    best alternator for an eaton swap?

    I have just completed an Eaton swap and want to upgrade the alternator. I believe the reversing alternator spins it backwards from the stock rotation. I want a 150-200 amp alternator. I have read the cobra terminator or the police interceptor are good options. Seeking recommendations.

    Wil some alternators not work when the rotation is reversed?

    Thanks very much!

    Buck

  2. #2
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    I've had a DB electrical high output alternator for a few years and its been trouble free.

  3. #3
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    Marauders use a 4G alt. Not the same used in p71
    2004 SB Ported Trilogy 48
    Has supporting mods and stuff
    Thanks to Marty O for his help in updating this car.

    R.I.P.
    Rex "SC Cheesehead"

  4. #4
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    Thanks
    Do you know the amperage output on your DB Unit?

    Buck

  5. #5
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    Mine is 160amp

    They make them in higher amp ratings

  6. #6
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    I have the DB 250amp alternator in mine. I did blow it once while running underdrive pulleys and hitting 6300rpm. I sent it back in and they repaired it no questions asked, under warranty even though it has been out of warranty for several years already. I highly suggest them.
    2003 300A
    Build date 9/27/02
    Sequence# 5244 of 7839
    I have a few things done to it, Eaton swap next!
    1993 Ford Taurus SHO-Every bolt on available...Awaiting a Turbo
    2008 Ford F350 SD
    1974 Ford F350 SCS
    2011 Ford Flex Titanium, Ecoboost
    www.cardomain.com/id/shofast
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  7. #7
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    What good is it if when hit you a mild 6300 rpm’s it goes bad? I’d be replacing alternators daily.

  8. #8
    Join Date
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    DB electrical website is only showing factory replacements as an option.
    2003 300A
    Widened Rear Wheels with 295 45 Nitto G2's
    Eaton Swapped by Curless
    Brake Upgrade
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  9. #9
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    Quote Originally Posted by Peace2Peep View Post
    DB electrical website is only showing factory replacements as an option.
    https://www.dbelectrical.com/alternators/automotive/mercury/marauder/

    Call them, they might build one to order for you.

    WLB
    BB#1) 1996 ImpalaSS - 16,500 miles - 100% stock
    ______________________________ ___________

    BB#2) 2003 Marauder (300a) - 34k miles - Daily Driver
    #2912 of 7093
    Conceived 8/6/2002
    Delivered 9/19/2002
    Adopted 8/10/2011
    Trilogy 242 - Self Installed 9/9/12 (0-60 5.5 sec)
    Pioneer 6x8 Front
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    Ed "Baaad GN" Linthicum 8-6-2014

  10. #10
    Join Date
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    Mishawaka, In
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    The alternator makes power no matter the direction it spins, the police alternator is the same as the marauder, if you’re running a 8 rib belt you just install the terminator alternator pulley on the stock alternator. The factory 6rib pulley is a ratcheting type pulley.


    Sent from my iPhone using Tapatalk

  11. #11
    Join Date
    Nov 2017
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    P71 alternator does not use the same regulator or brush pack.
    Last edited by Blakshukvw; 10-17-2019 at 01:00 PM.

  12. #12
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    Quote Originally Posted by Blakshukvw View Post
    P71 alternator does not use the same regulator or brush pack.
    Yup! What he said. ^^^^^

    WLB
    BB#1) 1996 ImpalaSS - 16,500 miles - 100% stock
    ______________________________ ___________

    BB#2) 2003 Marauder (300a) - 34k miles - Daily Driver
    #2912 of 7093
    Conceived 8/6/2002
    Delivered 9/19/2002
    Adopted 8/10/2011
    Trilogy 242 - Self Installed 9/9/12 (0-60 5.5 sec)
    Pioneer 6x8 Front
    Legacy 600w 6x9 Rears
    JL 6.5 SubWoofer
    K&N CAI
    Window tint 50% rear/35% front
    FBM CHMSL with Strobe mod 7/1/12
    DR Deep Aluminum Trans Pan
    Sparta FOMOCO Racing 8.8 Girdle
    Mo's Dyno Tune
    Gorilla Nuts - The System
    Ford Racing 4.10s, 31 spline Cobra carrier & axles 7/1/12
    Powder Coat Axle Housing 7/1/12
    CME HP Rear Control Arms & Watts Link 7/1/12
    ______________________________ ________________

    Rex "SC Cheesehead" Weinbender 11-14-13
    Ed "Baaad GN" Linthicum 8-6-2014

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