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Alternator

Alternator

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
  • STANDARD MOTOR PRODUCTS Voltage Regulator MC-VRB1

    STANDARD MOTOR PRODUCTS Voltage Regulator MC-VRB1

    STANDARD MOTOR PRODUCTS

    $134.95
    A voltage regulator is the electrical backbone of your charging system—without proper voltage regulation, you risk everything from dim lighting to battery damage and component failure. The STANDARD MOTOR PRODUCTS MC-VRB1 delivers stable, consistent...
    21120560
    SKU:
    21120560
    Availability:
    Ships Same Business Day
    Weight:
    1.35 LBS
    UNITS:
    EACH
    PRODUCT NAME:
    REGULATOR
    RIDING STYLE:
    STREET
    BATTERY VOLTAGE:
    12 V
    COLOR/FINISH:
    BLACK
    $134.95
    Qty in Cart: 0
    Quantity:
    Price:
    $134.95
    Subtotal:
  • CYCLE ELECTRIC INC Rectifying Regulator Low Voltage - Harley Davidson CE-320L

    CYCLE ELECTRIC INC Rectifying Regulator Low Voltage - Harley Davidson CE-320L

    CYCLE ELECTRIC INC

    $212.95
    Stock Harley-Davidson charging systems waste energy by dumping excess current to ground, forcing your alternator to work harder and generating unnecessary heat that stresses your motor. The Cycle Electric CE-320L Rectifying Regulator replaces this...
    DS313017
    SKU:
    DS313017
    Availability:
    Ships Same Business Day
    Weight:
    1.25 LBS
    RIDING STYLE:
    STREET
    COLOR/FINISH:
    BLACK
    UNITS:
    EACH
    AMPS:
    32 A
    PRODUCT NAME:
    RECTIFIER AND REGULATOR
    BATTERY VOLTAGE:
    12 V
    Qty in Cart: 0
    Quantity:
    Price:
    $212.95
    Subtotal:
  • CYCLE ELECTRIC INC Rectifying Regulator - Harley Davidson CE-324

    CYCLE ELECTRIC INC Rectifying Regulator - Harley Davidson CE-324

    CYCLE ELECTRIC INC

    $217.95
    Stock Harley-Davidson and Buell alternators generate excess heat and parasitic drag due to inefficient voltage regulation. The Cycle Electric CE-324 rectifying regulator actively controls output voltage instead of dumping current to ground, dramatically...
    DS313064
    SKU:
    DS313064
    Availability:
    Ships Same Business Day
    Weight:
    1.15 LBS
    RIDING STYLE:
    STREET
    COLOR/FINISH:
    BLACK
    UNITS:
    EACH
    PRODUCT NAME:
    RECTIFIER AND REGULATOR
    AMPS:
    32 A
    BATTERY VOLTAGE:
    12 V
    $217.95
    Qty in Cart: 0
    Quantity:
    Price:
    $217.95
    Subtotal:
  • CYCLE ELECTRIC INC 3-Phase Charging Kit - Harley Davidson CE-87T

    CYCLE ELECTRIC INC 3-Phase Charging Kit - Harley Davidson CE-87T

    CYCLE ELECTRIC INC

    $708.95
    A reliable charging system is non-negotiable for any rider who demands consistent electrical performance, whether you're cruising cross-country or pushing hard on the track. The CYCLE ELECTRIC INC 3-Phase Charging Kit delivers the amperage you need to...
    21120858
    SKU:
    21120858
    Availability:
    Ships Same Business Day
    Weight:
    11.95 LBS
    ALTERNATOR PHASE TYPE:
    THREE-PHASE
    PRODUCT NAME:
    CHARGING SYSTEM
    TYPE:
    OE REPLACEMENT
    BATTERY VOLTAGE:
    12 V
    AMPS:
    32 A
    AMPS:
    50 A
    RIDING STYLE:
    STREET
    UNITS:
    KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $708.95
    Subtotal:
  • CYCLE ELECTRIC INC 27A Alternator Kit - Harley Davidson CE-24S-07

    CYCLE ELECTRIC INC 27A Alternator Kit - Harley Davidson CE-24S-07

    CYCLE ELECTRIC INC

    $688.95
    If you're running modern electrical accessories on your Harley Davidson, your stock alternator is likely working overtime. The Cycle Electric Inc 27A kit delivers the amperage you need to reliably power upgraded lighting, infotainment systems, and...
    21121127
    SKU:
    21121127
    Availability:
    Ships Same Business Day
    Weight:
    12.15 LBS
    RIDING STYLE:
    STREET
    AMPS:
    15 A
    AMPS:
    27 A
    NUMBER OF TEETH:
    38 TEETH
    PRODUCT NAME:
    CHARGING SYSTEM
    TYPE:
    ALTERNATOR
    BATTERY VOLTAGE:
    12 V
    UNITS:
    KIT
    ALTERNATOR PHASE TYPE:
    -
    $688.95
    Qty in Cart: 0
    Quantity:
    Price:
    $688.95
    Subtotal:
  • CYCLE ELECTRIC INC 27A Alternator Kit - Harley Davidson CE-24S-09

    CYCLE ELECTRIC INC 27A Alternator Kit - Harley Davidson CE-24S-09

    CYCLE ELECTRIC INC

    $689.95
    If you're running additional electrical accessories on your Harley Davidson, your stock charging system may not keep up—leaving you stranded with a dead battery. The CYCLE ELECTRIC INC 27A Alternator Kit delivers the amperage headroom you need to...
    21121129
    SKU:
    21121129
    Availability:
    Ships Same Business Day
    Weight:
    12.20 LBS
    AMPS:
    15 A
    RIDING STYLE:
    STREET
    AMPS:
    27 A
    NUMBER OF TEETH:
    38 TEETH
    PRODUCT NAME:
    CHARGING SYSTEM
    TYPE:
    ALTERNATOR
    ALTERNATOR PHASE TYPE:
    -
    BATTERY VOLTAGE:
    12 V
    UNITS:
    KIT
    $689.95
    Qty in Cart: 0
    Quantity:
    Price:
    $689.95
    Subtotal:
  • CYCLE ELECTRIC INC Rectifying Regulator - Harley Davidson CE-608

    CYCLE ELECTRIC INC Rectifying Regulator - Harley Davidson CE-608

    CYCLE ELECTRIC INC

    $272.95
    Stock regulators dump excess current to ground, forcing your stator to work harder and generating unnecessary heat that strains your engine. The Cycle Electric CE-608 rectifying regulator actively blocks current instead, reducing stator load and...
    21121131
    SKU:
    21121131
    Availability:
    Ships Same Business Day
    Weight:
    2.80 LBS
    MATERIAL:
    ALUMINUM
    AMPS:
    45 A
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    AMPS:
    60 A
    PRODUCT NAME:
    RECTIFIER AND REGULATOR
    ALTERNATOR PHASE TYPE:
    THREE-PHASE
    BATTERY VOLTAGE:
    12 V
    COLOR/FINISH:
    BLACK
    $272.95
    Qty in Cart: 0
    Quantity:
    Price:
    $272.95
    Subtotal:
  • CYCLE ELECTRIC INC 3-Phase - Replacement Stator CE-8014 CYCLE ELECTRIC INC 3-Phase - Replacement Stator CE-8014

    CYCLE ELECTRIC INC 3-Phase - Replacement Stator CE-8014

    CYCLE ELECTRIC INC

    $207.95
    A failing stator leaves you stranded—this Cycle Electric Inc 3-phase replacement ensures reliable electrical output for consistent engine performance and charging system stability. Built to OEM specifications, the CE-8014 delivers the durability and...
    21121132
    SKU:
    21121132
    Availability:
    Ships Same Business Day
    Weight:
    4.05 LBS
    PRODUCT NAME:
    STATOR
    RIDING STYLE:
    STREET
    AMPS:
    50 A
    TYPE:
    ALTERNATOR
    UNITS:
    EACH
    BATTERY VOLTAGE:
    12 V
    $207.95
    Qty in Cart: 0
    Quantity:
    Price:
    $207.95
    Subtotal:
  • CYCLE ELECTRIC INC Low Voltage - Rectifying Regulator - Harley Davidson CE-105-13

    CYCLE ELECTRIC INC Low Voltage - Rectifying Regulator - Harley Davidson CE-105-13

    CYCLE ELECTRIC INC

    $185.95
    Most aftermarket regulators waste energy by dumping excess current to ground, forcing your stator to work harder and generating unnecessary heat that drains engine performance. The Cycle Electric CE-105-13 uses intelligent voltage blocking...
    21120841
    SKU:
    21120841
    Availability:
    Ships Same Business Day
    Weight:
    1.00 LBS
    UNITS:
    EACH
    PRODUCT NAME:
    REGULATOR
    AMPS:
    13 A
    BATTERY VOLTAGE:
    12 V
    TYPE:
    GENERATOR
    COLOR/FINISH:
    BLACK
    RIDING STYLE:
    STREET
    $185.95
    Qty in Cart: 0
    Quantity:
    Price:
    $185.95
    Subtotal:
  • CYCLE ELECTRIC INC Rectifying Regulator - Harley Davidson CE-211

    CYCLE ELECTRIC INC Rectifying Regulator - Harley Davidson CE-211

    CYCLE ELECTRIC INC

    $217.95
    Stock Harley-Davidson and Buell charging systems waste energy and generate unnecessary heat by dumping excess voltage to ground—a design that drains your motor and stresses your stator. The Cycle Electric CE-211 Rectifying Regulator replaces this...
    21120842
    SKU:
    21120842
    Availability:
    Ships Same Business Day
    Weight:
    1.12 LBS
    BATTERY VOLTAGE:
    12 V
    UNITS:
    EACH
    PRODUCT NAME:
    RECTIFIER AND REGULATOR
    AMPS:
    32 A
    COLOR/FINISH:
    BLACK
    RIDING STYLE:
    STREET
    $217.95
    Qty in Cart: 0
    Quantity:
    Price:
    $217.95
    Subtotal:
  • CYCLE ELECTRIC INC Rectifying Regulator - Harley Davidson CE-607

    CYCLE ELECTRIC INC Rectifying Regulator - Harley Davidson CE-607

    CYCLE ELECTRIC INC

    $277.95
    Stock Harley-Davidson and Buell alternators generate excessive heat and parasitic drag due to inefficient voltage regulation—the CE-607 solves this by actively controlling current instead of dumping it to ground. By reducing stator current and operating...
    21120845
    SKU:
    21120845
    Availability:
    Ships Same Business Day
    Weight:
    2.70 LBS
    BATTERY VOLTAGE:
    12 V
    AMPS:
    60 A
    PRODUCT NAME:
    RECTIFIER AND REGULATOR
    AMPS:
    45 A
    COLOR/FINISH:
    BLACK
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    $277.95
    Qty in Cart: 0
    Quantity:
    Price:
    $277.95
    Subtotal:
  • CYCLE ELECTRIC INC Alternator Stator - Harley Davidson CE-0732

    CYCLE ELECTRIC INC Alternator Stator - Harley Davidson CE-0732

    CYCLE ELECTRIC INC

    $177.95
    A reliable stator is the foundation of your electrical system—without it, you're looking at a dead battery and a bike that won't start. The Cycle Electric Inc Alternator Stator (CE-0732) is engineered as a direct OEM replacement for your Harley Davidson,...
    21120847
    SKU:
    21120847
    Availability:
    Ships Same Business Day
    Weight:
    2.69 LBS
    AMPS:
    32 A
    BATTERY VOLTAGE:
    12 V
    TYPE:
    ALTERNATOR
    PRODUCT NAME:
    STATOR
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    $177.95
    Qty in Cart: 0
    Quantity:
    Price:
    $177.95
    Subtotal:
  • COMPU-FIRE Charging - System - 40A 55565

    COMPU-FIRE Charging - System - 40A 55565

    COMPU-FIRE

    $661.95
    If you're running fuel injection or an overdrive transmission on a Softail, Dyna, or FLT platform, your stock charging system likely can't keep up with the electrical demands of modern builds. The COMPU-FIRE 40A Charging System delivers the sustained...
    21120098
    SKU:
    21120098
    Availability:
    Ships Same Business Day
    Weight:
    11.20 LBS
    ALTERNATOR PHASE TYPE:
    THREE-PHASE
    AMPS:
    40 A
    RIDING STYLE:
    STREET
    BATTERY VOLTAGE:
    12 V
    PRODUCT NAME:
    CHARGING SYSTEM
    UNITS:
    EACH
    $661.95
    Qty in Cart: 0
    Quantity:
    Price:
    $661.95
    Subtotal:
  • COMPU-FIRE Charging - System - 40A 55570

    COMPU-FIRE Charging - System - 40A 55570

    COMPU-FIRE

    $635.33
    If you're running a fuel-injected Softail, Dyna, or FLT with modern electrical demands, your stock charging system is likely leaving you short. The COMPU-FIRE 40A Charging System delivers the sustained amperage needed to power fuel injection, ignition...
    21120099
    SKU:
    21120099
    Availability:
    Ships Same Business Day
    Weight:
    10.35 LBS
    ALTERNATOR PHASE TYPE:
    THREE-PHASE
    AMPS:
    40 A
    BATTERY VOLTAGE:
    12 V
    RIDING STYLE:
    STREET
    PRODUCT NAME:
    CHARGING SYSTEM
    UNITS:
    EACH
    $635.33
    Qty in Cart: 0
    Quantity:
    Price:
    $635.33
    Subtotal:
  • COMPU-FIRE Replacement - Stator 55404

    COMPU-FIRE Replacement - Stator 55404

    COMPU-FIRE

    $267.48
    If you're running a fuel-injected Softail, Dyna, or FLT with modern electrical demands, a weak or failing stator will leave you stranded. The COMPU-FIRE 55404 replacement stator delivers reliable charging output without requiring frame modifications or...
    21120413
    SKU:
    21120413
    Availability:
    Ships Same Business Day
    Weight:
    3.05 LBS
    ALTERNATOR PHASE TYPE:
    THREE-PHASE
    AMPS:
    40 A
    PRODUCT NAME:
    STATOR
    RIDING STYLE:
    STREET
    BATTERY VOLTAGE:
    12 V
    TYPE:
    ALTERNATOR
    UNITS:
    EACH
    $267.48
    Qty in Cart: 0
    Quantity:
    Price:
    $267.48
    Subtotal:
  • COMPU-FIRE Stator - 40A 3-Phase - Twin Cam 55405

    COMPU-FIRE Stator - 40A 3-Phase - Twin Cam 55405

    COMPU-FIRE

    $271.83
    If you're running a fuel-injected Twin Cam with an overdrive transmission, your stock charging system likely can't keep up with modern electrical demands. The COMPU-FIRE 40A 3-Phase Stator delivers the reliable amperage your bike needs without requiring...
    21120414
    SKU:
    21120414
    Availability:
    Ships Same Business Day
    Weight:
    3.00 LBS
    AMPS:
    40 A
    BATTERY VOLTAGE:
    12 V
    TYPE:
    ALTERNATOR
    ALTERNATOR PHASE TYPE:
    THREE-PHASE
    UNITS:
    EACH
    PRODUCT NAME:
    STATOR
    RIDING STYLE:
    STREET
    $271.83
    Qty in Cart: 0
    Quantity:
    Price:
    $271.83
    Subtotal:
  • COMPU-FIRE Vented Rotor 55406

    COMPU-FIRE Vented Rotor 55406

    COMPU-FIRE

    $206.24
    If you're running a fuel-injected Softail, Dyna, or FLT with a custom primary setup, charging system reliability becomes critical—especially under high electrical demand. The COMPU-FIRE Vented Rotor 55406 delivers consistent alternator output by keeping...
    21120415
    SKU:
    21120415
    Availability:
    Ships Same Business Day
    Weight:
    4.20 LBS
    ALTERNATOR PHASE TYPE:
    THREE-PHASE
    AMPS:
    40 A
    BATTERY VOLTAGE:
    12 V
    PRODUCT NAME:
    ROTOR
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    OUTPUT VOLTAGE:
    14.25 V
    TYPE:
    ALTERNATOR
    $206.24
    Qty in Cart: 0
    Quantity:
    Price:
    $206.24
    Subtotal:
  • COMPU-FIRE Charging System Regulator 55402

    COMPU-FIRE Charging System Regulator 55402

    COMPU-FIRE

    $351.10
    A properly calibrated charging system is the foundation of reliable engine management, especially in fuel-injected applications where voltage stability directly impacts ignition timing and fuel delivery precision. The COMPU-FIRE 55402 regulator maintains...
    21120416
    SKU:
    21120416
    Availability:
    Ships Same Business Day
    Weight:
    1.88 LBS
    BATTERY VOLTAGE:
    12 V
    AMPS:
    40 A
    PRODUCT NAME:
    REGULATOR
    ALTERNATOR PHASE TYPE:
    THREE-PHASE
    UNITS:
    EACH
    RIDING STYLE:
    STREET
    $351.10
    Qty in Cart: 0
    Quantity:
    Price:
    $351.10
    Subtotal:
  • COMPU-FIRE 32A Charging System Kit - Harley Davidson 55522

    COMPU-FIRE 32A Charging System Kit - Harley Davidson 55522

    COMPU-FIRE

    $775.34
    A reliable charging system is the foundation of any dependable motorcycle—without it, you're stranded. The COMPU-FIRE 32A kit restores full electrical output on carbureted Harley-Davidson models, delivering consistent voltage and amperage to keep your...
    21121236
    SKU:
    21121236
    Availability:
    Ships Same Business Day
    Weight:
    8.70 LBS
    BATTERY VOLTAGE:
    12 V
    COLOR/FINISH:
    BLACK
    AMPS:
    32 A
    COLOR/FINISH:
    UNFINISHED
    RIDING STYLE:
    STREET
    PRODUCT NAME:
    CHARGING SYSTEM
    UNITS:
    EACH
    $775.34
    Qty in Cart: 0
    Quantity:
    Price:
    $775.34
    Subtotal:
  • COMPU-FIRE Replacement Stator - 32A Charging System Kit - Harley Davidson 55534

    COMPU-FIRE Replacement Stator - 32A Charging System Kit - Harley Davidson 55534

    COMPU-FIRE

    $293.48
    A failing stator drains performance and reliability from any carbureted Harley Davidson. This COMPU-FIRE 32A charging system restores consistent electrical output while the integrated series-type regulator reduces parasitic engine load—critical when...
    21121237
    SKU:
    21121237
    Availability:
    Ships Same Business Day
    Weight:
    2.55 LBS
    RIDING STYLE:
    STREET
    AMPS:
    32 A
    COLOR/FINISH:
    UNFINISHED
    PRODUCT NAME:
    STATOR
    BATTERY VOLTAGE:
    12 V
    UNITS:
    EACH
    $293.48
    Qty in Cart: 0
    Quantity:
    Price:
    $293.48
    Subtotal:
  • Total: items /

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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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