Product Summary

One Wire Alternator, 140 amp Alternator Amperage

    Key Specs

    MFG. Part #7127NK
    BrandTuff Stuff
    One Wire AlternatorYes
    Alternator FinishChrome

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    Tuff Stuff 7127NK Details

    All Tuff Stuff alternators are hand built in Cleveland, Ohio and are tested to meet or exceed OEM specifications. All Tuff Stuff alternators are made from 100% new components and carry a one year limited warranty. Tuff Stuff has alternator applications for virtually all muscle cars, hot rods, customs and light trucks in just about every finish imaginable.

    Many enthusiasts prefer our clean, simple 1-wire alternator option which features a low idle cut-in internal regulator and provides plenty of charging at low RPMs. Available in chrome plated, polished aluminum, powder coated and plain as cast finishes. All alternators are for 12 volt, negative ground systems, except where noted.

    • Alternator
    • 140 AMP
    • OEM Or 1 Wire
    • V Groove Pulley
    • Chrome


    Diagram (PDF)

    Tuff Stuff 7127NK Specifications

    MFG. Part #7127NK
    BrandTuff Stuff
    One Wire AlternatorYes
    Alternator FinishChrome
    Alternator Case StyleGM 10SI/10DN/12SI
    Alternator Amperage140 amp
    Voltage Required12-Volt
    Regulator StyleInternal
    Regulator IncludedYes
    Alternator Pulley IncludedYes
    Belt TypeV-Belt
    Alternator Brackets IncludedNo
    Sold in QuantityEach
    NotesWith 12si style smooth rear housing. V-belt pulley accommodates 3/8 in. wide belts.
    GTIN Code698252014885
    Belt IncludedNo
    Pulley StyleV-belt
    Coating TypePlated