Alternator Parts

A range of alternator parts, all suitable for use on classic bikes from the 1950s, 1960s and 1970s. We have many more parts available than are shown on this page, so if you cannot see the part you need, or are unsure which suits your bike, please get in touch and we will do what we can to help you.

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    Alternator Rotor, Lucas RM20 Replica, 54202299, 54212006

    £86.40

    Pattern rotor, direct replacement for Lucas 54202299, with superior welded centre as per the later Lucas units.
    Fits most BSA, Triumph and Norton singles and twins from the late 1950's to the 1970's.
    Diameter: 73mm
    Shaft diameter: 3/4" (19.05mm)
    Thickness: 35mm 

    OEM: 54202299, 54212006

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    Alternator Stator, Lucas 42705 Replica, Single Phase

    £66.60

    Pattern Lucas stator.
    A direct replacement for Lucas LU42705 with no compromise in performance.
    Fits most British Bikes (late 50's to 70's) equipped with alternators.
    SIngle Phase
    10 Amp
    Two Lead 

    OEM: LU42705

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    Alternator Stator, Lucas 42739 Replica, Single Phase, 16 Amp

    £66.60

    Pattern Lucas stator.
    A high output  single phase, 16 amp 2 lead stator capable of in excess of 200W output.
    Must be used with a suitable rectifier/regulator capable of supprting this outpout.. Direct Lucas replacement.
    SIngle Phase
    16 Amp
    Two Lead 

    OEM: LU42739

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    Alternator Wiring Grommet, Triumph Unit Twins BSA Singles & Twins, 70-4144 68-0209

    £0.99

    An inner alternator grommet.  Fits Triumph Unit construction models and BSA twins and singles. 

    OEM: 70-4144, 68-0209

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