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Thread: Lucas 18ACR alternator conversion

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    Lucas 18ACR alternator conversion

    Hi folks. anyone have any experience replacing a Lucas 18ACR on a 1973 Stag. These make a mere 43 amps and I'm looking for a bit more HP. I have read columns on using Ford Fiesta and Saturn alternators and I am hoping to find a plug and play option.
    Thanks

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    Re: Lucas 18ACR alternator conversion

    I don't know what the 'plugs' look like on a Stag, but this is the Fiesta 55 amp alternator on my ex' 74 TR6 which was truly 'plug and play' for that car.
    Fiesta.jpg
    Fiesta 2.jpg
    Ken @
    kencorsaw "at" aol.com
    DRIVE 'EM IF YOU GOT 'EM

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    Re: Lucas 18ACR alternator conversion

    I put a Fiesta alternator on my Bugeye Sprite some years ago. That's not a TR, of course, but it used a Lucas generator whose dimensions were virtually identical to those on a TR. It was an easy installation. http://sprite.nonlintec.com/alternator/
    Steve Maas
    1966 Triumph TR4A, restoration completed Aug. 2020: http://www.nonlintec.com/tr4a
    1952 MG TD, restoration completed 2014, sold 2016: http://www.nonlintec.com/mgtd
    1960 Austin-Healey "Bugeye" Sprite, sold 2010: http://www.nonlintec.com/sprite
    1967 Porsche 912: http://www.nonlintec.com/porsche

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    Jedi Hopeful
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    Re: Lucas 18ACR alternator conversion

    The last 18ACR replacement I bought claimed 60 amp capacity.

    Ed

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    Re: Lucas 18ACR alternator conversion

    Any recollection where you bought it?

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    Re: Lucas 18ACR alternator conversion

    It would have been one of the big 3 in the US. Moss, maybe.

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