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Harley Alternator

Harley Alternator

Harley Alternator

Harley Bike Alternators & Regulators at JJ Motorsports

Keep your Harley charged and running strong with premium regulators and rectifying regulators from JJ Motorsports, engineered for reliable voltage control and maximum charging output on Sportster XL, FL/FLH Touring, and Big Twin models. These high-quality units prevent overcharging and ensure steady power for lights, ignition, and accessories.

Shop Cycle Electric and Drag Specialties regulators for proven durability. Explore related categories such as Harley lights and electrical for stators and batteries, or Harley for wiring and switches to complete your charging system upgrade.

Top Harley Alternators & Regulators

Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • CYCLE ELECTRIC INC Replacement - Stator CE-6011

    CYCLE ELECTRIC INC Replacement - Stator CE-6011

    CYCLE ELECTRIC INC

    $161.95
    A failing stator can leave you stranded and drain your budget on costly diagnostics. The Cycle Electric Inc Replacement Stator CE-6011 restores reliable charging system performance with a direct OEM-spec replacement that eliminates guesswork. Built to...
    21120147
    SKU:
    21120147
    Availability:
    Ships Same Business Day
    Weight:
    2.76 LBS
    BATTERY VOLTAGE:
    12 V
    AMPS:
    38 A
    TYPE:
    ALTERNATOR
    UNITS:
    EACH
    PRODUCT NAME:
    STATOR
    RIDING STYLE:
    STREET
    $161.95
    Qty in Cart: 0
    Quantity:
    Price:
    $161.95
    Subtotal:
  • CYCLE ELECTRIC INC Charging Kit - Harley Davidson CE-63T

    CYCLE ELECTRIC INC Charging Kit - Harley Davidson CE-63T

    CYCLE ELECTRIC INC

    $658.95
    Stock charging systems on Harley Davidson motorcycles often struggle to keep up with modern electrical demands, especially when running auxiliary lighting, heated grips, or infotainment systems. The Cycle Electric Inc CE-63T Charging Kit delivers...
    21120150
    SKU:
    21120150
    Availability:
    Ships Same Business Day
    Weight:
    11.53 LBS
    PRODUCT NAME:
    CHARGING SYSTEM
    AMPS:
    38 A
    BATTERY VOLTAGE:
    12 V
    AMPS:
    17 A
    RIDING STYLE:
    STREET
    ALTERNATOR PHASE TYPE:
    THREE-PHASE
    UNITS:
    KIT
    $658.95
    Qty in Cart: 0
    Quantity:
    Price:
    $658.95
    Subtotal:
  • CYCLE ELECTRIC INC Rectifying - Regulator CE-445

    CYCLE ELECTRIC INC Rectifying - Regulator CE-445

    CYCLE ELECTRIC INC

    $309.95
    A reliable rectifier-regulator is essential for maintaining stable charging output and protecting your electrical system from voltage spikes that can damage lights, ignition components, and other accessories. The Cycle Electric Inc CE-445 delivers...
    21120296
    SKU:
    21120296
    Availability:
    Ships Same Business Day
    Weight:
    2.63 LBS
    AMPS:
    29 A
    BATTERY VOLTAGE:
    12 V
    COLOR/FINISH:
    BLACK
    UNITS:
    EACH
    PRODUCT NAME:
    RECTIFIER AND REGULATOR
    RIDING STYLE:
    STREET
    $309.95
    Qty in Cart: 0
    Quantity:
    Price:
    $309.95
    Subtotal:
  • CYCLE ELECTRIC INC Rectifying Regulator - Harley Davidson CE-601-07

    CYCLE ELECTRIC INC Rectifying Regulator - Harley Davidson CE-601-07

    CYCLE ELECTRIC INC

    $292.95
    Most aftermarket regulators dump excess voltage to ground, forcing your stator to work harder and generating unnecessary heat that taxes your motor. The Cycle Electric CE-601-07 uses intelligent current blocking to control voltage instead—reducing stator...
    21120394
    SKU:
    21120394
    Availability:
    Ships Same Business Day
    Weight:
    2.58 LBS
    PRODUCT NAME:
    RECTIFIER AND REGULATOR
    UNITS:
    EACH
    BATTERY VOLTAGE:
    12 V
    RIDING STYLE:
    STREET
    AMPS:
    50 A
    COLOR/FINISH:
    BLACK
    Qty in Cart: 0
    Quantity:
    Price:
    $292.95
    Subtotal:
  • COMPU-FIRE Replacement Rotor for 40A 3-Phase Charging System - Harley Davidson 55650

    COMPU-FIRE Replacement Rotor for 40A 3-Phase Charging System - Harley Davidson 55650

    COMPU-FIRE

    $172.67
    A failing charging system rotor leaves you stranded and drains your battery faster than you can diagnose the problem. This COMPU-FIRE replacement rotor restores reliable alternator output, ensuring your Harley's electrical system delivers consistent...
    DS195116
    SKU:
    DS195116
    Availability:
    Ships Same Business Day
    Weight:
    4.60 LBS
    AMPS:
    40 A
    PRODUCT NAME:
    ROTOR
    RIDING STYLE:
    STREET
    BATTERY VOLTAGE:
    12 V
    TYPE:
    ALTERNATOR
    UNITS:
    EACH
    Qty in Cart: 0
    Quantity:
    Price:
    $172.67
    Subtotal:
  • COMPU-FIRE Replacement Stator for 32A Charging System - Harley Davidson 55530

    COMPU-FIRE Replacement Stator for 32A Charging System - Harley Davidson 55530

    COMPU-FIRE

    $146.82
    A failing stator drains your battery and leaves you stranded—the COMPU-FIRE Replacement Stator restores reliable charging output and keeps your electrical system running at peak performance. This OEM-quality replacement is engineered for consistent...
    DS195202
    SKU:
    DS195202
    Availability:
    Ships Same Business Day
    Weight:
    2.65 LBS
    COLOR/FINISH:
    UNFINISHED
    RIDING STYLE:
    STREET
    AMPS:
    32 A
    BATTERY VOLTAGE:
    12 V
    PRODUCT NAME:
    STATOR
    UNITS:
    EACH
    Qty in Cart: 0
    Quantity:
    Price:
    $146.82
    Subtotal:
  • COMPU-FIRE Replacement Rotor for 32A Charging System - Harley Davidson 55600

    COMPU-FIRE Replacement Rotor for 32A Charging System - Harley Davidson 55600

    COMPU-FIRE

    $172.67
    A failing charging system rotor doesn't just leave you stranded—it compromises your entire electrical system when you need it most. The COMPU-FIRE replacement rotor restores reliable charge output and eliminates the guesswork of OEM uncertainty. If...
    DS195203
    SKU:
    DS195203
    Availability:
    Ships Same Business Day
    Weight:
    4.56 LBS
    BATTERY VOLTAGE:
    12 V
    PRODUCT NAME:
    ROTOR
    AMPS:
    32 A
    RIDING STYLE:
    STREET
    TYPE:
    ALTERNATOR
    UNITS:
    EACH
    $172.67
    Qty in Cart: 0
    Quantity:
    Price:
    $172.67
    Subtotal:
  • COMPU-FIRE Voltage Regulator 32A - Harley Davidson 55120

    COMPU-FIRE Voltage Regulator 32A - Harley Davidson 55120

    COMPU-FIRE

    $235.95
    A worn or inefficient voltage regulator forces your stator to work harder than necessary, robbing horsepower and draining your battery. The COMPU-FIRE 32A Voltage Regulator eliminates that parasitic load with intelligent open-circuit design—meaning zero...
    DS313041
    SKU:
    DS313041
    Availability:
    Ships Same Business Day
    Weight:
    0.81 LBS
    AMPS:
    32 A
    BATTERY VOLTAGE:
    12 V
    COLOR/FINISH:
    BLACK
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    MATERIAL:
    ALUMINUM
    PRODUCT NAME:
    REGULATOR
    TYPE:
    SERIES-TYPE
    $235.95
    Qty in Cart: 0
    Quantity:
    Price:
    $235.95
    Subtotal:
  • COMPU-FIRE 32A Voltage Regulator - Harley Davidson 55130

    COMPU-FIRE 32A Voltage Regulator - Harley Davidson 55130

    COMPU-FIRE

    $255.95
    A worn or inefficient voltage regulator forces your stator to work harder than necessary, draining engine power and generating excess heat. The COMPU-FIRE 32A Voltage Regulator eliminates this parasitic load by switching to an open circuit when the...
    DS313058
    SKU:
    DS313058
    Availability:
    Ships Same Business Day
    Weight:
    1.60 LBS
    AMPS:
    32 A
    BATTERY VOLTAGE:
    12 V
    COLOR/FINISH:
    CHROME
    MATERIAL:
    BILLET ALUMINUM
    PRODUCT NAME:
    REGULATOR
    UNITS:
    EACH
    RIDING STYLE:
    STREET
    TYPE:
    SERIES-TYPE
    $255.95
    Qty in Cart: 0
    Quantity:
    Price:
    $255.95
    Subtotal:
  • DRAG SPECIALTIES Stator - '14-'21 XL 29900068

    DRAG SPECIALTIES Stator - '14-'21 XL 29900068

    DRAG SPECIALTIES

    $173.29
    A failing stator means unreliable charging and potential roadside breakdowns—this OEM-equivalent stator restores dependable electrical output to your '14-'21 XL. Built to factory specifications, it delivers the precise amperage your bike demands without...
    21121313
    SKU:
    21121313
    Availability:
    Ships Same Business Day
    Weight:
    2.70 LBS
    UNITS:
    EACH
    PRODUCT NAME:
    STATOR
    RIDING STYLE:
    STREET
    $173.29
    Qty in Cart: 0
    Quantity:
    Price:
    $173.29
    Subtotal:
  • DRAG SPECIALTIES Regulator - Touring '17-'19 - Chrome 74700025C

    DRAG SPECIALTIES Regulator - Touring '17-'19 - Chrome 74700025C

    DRAG SPECIALTIES

    $250.33
    A failing voltage regulator will starve your electrical system and leave you stranded—or worse, damage critical components like your battery and alternator. The DRAG SPECIALTIES Regulator delivers stable 12V output across all electrical loads, keeping...
    21121315
    SKU:
    21121315
    Availability:
    Ships Same Business Day
    Weight:
    2.10 LBS
    AMPS:
    -
    BATTERY VOLTAGE:
    12 V
    COLOR/FINISH:
    CHROME
    TYPE:
    CHARGE AND VOLTAGE REGULATOR
    UNITS:
    KIT
    PRODUCT NAME:
    REGULATOR
    MATERIAL:
    ALUMINUM
    RIDING STYLE:
    STREET
    $250.33
    Qty in Cart: 0
    Quantity:
    Price:
    $250.33
    Subtotal:
  • DRAG SPECIALTIES Regulator - Black - 74700021 74700021B

    DRAG SPECIALTIES Regulator - Black - 74700021 74700021B

    DRAG SPECIALTIES

    $273.87
    A reliable voltage regulator is critical for maintaining consistent electrical output across your motorcycle's systems—especially under high-load conditions on the track or during extended rides. The DRAG Specialties regulator delivers...
    21121207
    SKU:
    21121207
    Availability:
    Ships Same Business Day
    Weight:
    2.85 LBS
    COLOR/FINISH:
    BLACK
    UNITS:
    KIT
    AMPS:
    54 A
    MATERIAL:
    ALUMINUM
    PRODUCT NAME:
    REGULATOR
    RIDING STYLE:
    STREET
    BATTERY VOLTAGE:
    12 V
    TYPE:
    CHARGE AND VOLTAGE REGULATOR
    $273.87
    Qty in Cart: 0
    Quantity:
    Price:
    $273.87
    Subtotal:
  • DRAG SPECIALTIES Regulator - Chrome - 74700021 74700021C

    DRAG SPECIALTIES Regulator - Chrome - 74700021 74700021C

    DRAG SPECIALTIES

    $284.57
    A stable electrical system is the foundation of reliable engine performance, especially under high-demand racing conditions. This DRAG SPECIALTIES voltage regulator maintains precise output across varying loads, eliminating the voltage fluctuations that...
    21121208
    SKU:
    21121208
    Availability:
    Ships Same Business Day
    Weight:
    3.05 LBS
    UNITS:
    KIT
    BATTERY VOLTAGE:
    12 V
    AMPS:
    54 A
    COLOR/FINISH:
    CHROME
    MATERIAL:
    ALUMINUM
    RIDING STYLE:
    STREET
    PRODUCT NAME:
    REGULATOR
    TYPE:
    CHARGE AND VOLTAGE REGULATOR
    $284.57
    Qty in Cart: 0
    Quantity:
    Price:
    $284.57
    Subtotal:
  • DRAG SPECIALTIES Regulator - '14-'19 XL - Black 74700012B

    DRAG SPECIALTIES Regulator - '14-'19 XL - Black 74700012B

    DRAG SPECIALTIES

    $187.20
    A failing voltage regulator will drain your battery, kill your ignition system, and leave you stranded—especially at the track when you can't afford downtime. The DRAG Specialties regulator maintains stable 12V output across all electrical loads,...
    21121209
    SKU:
    21121209
    Availability:
    Ships Same Business Day
    Weight:
    1.35 LBS
    AMPS:
    -
    PRODUCT NAME:
    REGULATOR
    TYPE:
    CHARGE AND VOLTAGE REGULATOR
    MATERIAL:
    ALUMINUM
    RIDING STYLE:
    STREET
    BATTERY VOLTAGE:
    12 V
    COLOR/FINISH:
    BLACK
    UNITS:
    KIT
    $187.20
    Qty in Cart: 0
    Quantity:
    Price:
    $187.20
    Subtotal:
  • DRAG SPECIALTIES Regulator - '14-'19 XL - Chrome 74700012C

    DRAG SPECIALTIES Regulator - '14-'19 XL - Chrome 74700012C

    DRAG SPECIALTIES

    $195.76
    A failing voltage regulator leaves your electrical system vulnerable to undercharging and battery drain, especially during high-demand riding conditions. This Drag Specialties regulator delivers stable 12V output across all electrical loads, eliminating...
    21121210
    SKU:
    21121210
    Availability:
    Ships Same Business Day
    Weight:
    1.40 LBS
    BATTERY VOLTAGE:
    12 V
    COLOR/FINISH:
    CHROME
    PRODUCT NAME:
    REGULATOR
    AMPS:
    -
    TYPE:
    CHARGE AND VOLTAGE REGULATOR
    UNITS:
    KIT
    MATERIAL:
    ALUMINUM
    RIDING STYLE:
    STREET
    $195.76
    Qty in Cart: 0
    Quantity:
    Price:
    $195.76
    Subtotal:
  • DRAG SPECIALTIES Alternator Rotor - Harley Davidson R4035607

    DRAG SPECIALTIES Alternator Rotor - Harley Davidson R4035607

    DRAG SPECIALTIES

    $348.77
    A failing alternator rotor will starve your Harley's electrical system and leave you stranded. This Drag Specialties OEM replacement restores reliable charge output and eliminates the guesswork of aftermarket alternatives. Direct fitment means zero...
    21120333
    SKU:
    21120333
    Availability:
    Ships Same Business Day
    Weight:
    5.75 LBS
    BATTERY VOLTAGE:
    12 V
    MATERIAL:
    STEEL
    UNITS:
    EACH
    AMPS:
    50 A
    PRODUCT NAME:
    ROTOR
    TYPE:
    ALTERNATOR
    RIDING STYLE:
    STREET
    $348.77
    Qty in Cart: 0
    Quantity:
    Price:
    $348.77
    Subtotal:
  • DRAG SPECIALTIES Alternator Rotor - Harley Davidson R3249404B

    DRAG SPECIALTIES Alternator Rotor - Harley Davidson R3249404B

    DRAG SPECIALTIES

    $314.53
    A failing alternator rotor compromises your charging system and leaves you stranded—especially critical on long rides where electrical reliability is non-negotiable. This OEM-specification rotor restores full charging output and ensures your battery...
    21120334
    SKU:
    21120334
    Availability:
    Ships Same Business Day
    Weight:
    8.30 LBS
    PRODUCT NAME:
    ROTOR
    TYPE:
    ALTERNATOR
    BATTERY VOLTAGE:
    12 V
    MATERIAL:
    STEEL
    UNITS:
    EACH
    AMPS:
    32 A
    RIDING STYLE:
    STREET
    $314.53
    Qty in Cart: 0
    Quantity:
    Price:
    $314.53
    Subtotal:
  • DRAG SPECIALTIES Regulator - Big Twin '76-'80 - Chrome 74512-79A

    DRAG SPECIALTIES Regulator - Big Twin '76-'80 - Chrome 74512-79A

    DRAG SPECIALTIES

    $98.39
    A failing voltage regulator leaves your Big Twin vulnerable to electrical system instability, dim lighting, and potential charging failures at critical moments. This Drag Specialties regulator delivers consistent voltage output under all loads,...
    21120777
    SKU:
    21120777
    Availability:
    Ships Same Business Day
    Weight:
    1.00 LBS
    PRODUCT NAME:
    REGULATOR
    TYPE:
    SOLID STATE
    UNITS:
    EACH
    AMPS:
    17.8 A
    BATTERY VOLTAGE:
    12 V
    COLOR/FINISH:
    CHROME
    MATERIAL:
    ALUMINUM
    RIDING STYLE:
    STREET
    $98.39
    Qty in Cart: 0
    Quantity:
    Price:
    $98.39
    Subtotal:
  • DRAG SPECIALTIES Regulator - Big Twin '70-'75 - Black 74510-70BK

    DRAG SPECIALTIES Regulator - Big Twin '70-'75 - Black 74510-70BK

    DRAG SPECIALTIES

    $84.48
    Keeping your Big Twin's electrical system stable under demanding conditions is non-negotiable for reliable performance. This Drag Specialties regulator eliminates the wear and drift issues inherent in contact-based designs, delivering rock-solid voltage...
    21120780
    SKU:
    21120780
    Availability:
    Ships Same Business Day
    Weight:
    1.00 LBS
    BATTERY VOLTAGE:
    12 V
    UNITS:
    EACH
    PRODUCT NAME:
    REGULATOR
    TYPE:
    SOLID STATE
    AMPS:
    15 A
    COLOR/FINISH:
    BLACK
    MATERIAL:
    ALUMINUM
    RIDING STYLE:
    STREET
    $84.48
    Qty in Cart: 0
    Quantity:
    Price:
    $84.48
    Subtotal:
  • DRAG SPECIALTIES Regulator - FL '02-'03 - Chrome 74622-02

    DRAG SPECIALTIES Regulator - FL '02-'03 - Chrome 74622-02

    DRAG SPECIALTIES

    $282.43
    A failing voltage regulator doesn't just drain your battery—it can leave you stranded and damage critical electrical components. This Drag Specialties regulator delivers stable 12V output under all operating conditions, eliminating the erratic charging...
    21120785
    SKU:
    21120785
    Availability:
    Ships Same Business Day
    Weight:
    2.30 LBS
    MATERIAL:
    ALUMINUM
    PRODUCT NAME:
    REGULATOR
    RIDING STYLE:
    STREET
    AMPS:
    45 A
    UNITS:
    EACH
    AMPS:
    38 A
    TYPE:
    SOLID STATE
    BATTERY VOLTAGE:
    12 V
    COLOR/FINISH:
    CHROME
    Qty in Cart: 0
    Quantity:
    Price:
    $282.43
    Subtotal:
  • Total: items /

Adding your products to cart

Big Power, Nice Sound!

Picked up a Pro Circuit pipe and silencer for my YZ125 it’s a game changer. The power feels way better and the sound is awesome.

Tyler D. - 06/12

Perfect Fit

First time ordering here and dang y’all knocked it outta the park! The wheels fit my Ranger UTV perfect, and I’ll definitely be back for more 5 stars all day!

Sarah L. - 08/24

Fast Shipping!!

Ordered on a Monday, and it was on my doorstep by Wednesday! Super impressed with how fast the shipping was.

Jason P. - 09/13

Helps keep cool, works great!

Bought the dual pass Allstar radiator for my build, and it’s been solid. Keeps the engine running cool even on the hottest days no complaints here!

Jake M. - 05/21

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