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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
    Internal wire connections are vibration resistant, Fiber and Mylar® insulating pads, Large diameter contact surfaces
    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
    Control voltage on Harley-Davidson and Buell alternators, unlike other rectifiers or regulators that dump to ground and cause maximum stator current and higher temperatures, Cycle Electric rectifying regulators block current to control voltage; 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
    $212.95
    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
    Control voltage on Harley-Davidson and Buell alternators, unlike other rectifiers or regulators that dump to ground and cause maximum stator current and higher temperatures, Cycle Electric rectifying regulators block current to control voltage; this...
    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
    Kits produce 32A at 1,000 rpm and 50A at 2,500 rpm, Improved durability and dependability, Made in the U.S.A.
    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
    $708.95
    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
    Kits include stator, rotor, black rectifying voltage regulator and mounting hardware, Made in the U.S.A., Adding electrical accessories increases amperage usage. When doing so, it is important to consider amperage ratings of switches and wires. If you...
    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
    Kits include stator, rotor, black rectifying voltage regulator and mounting hardware, Made in the U.S.A., Adding electrical accessories increases amperage usage. When doing so, it is important to consider amperage ratings of switches and wires. If you...
    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
    Control voltage on Harley-Davidson and Buell alternators, unlike other rectifiers or regulators that dump to ground and cause maximum stator current and higher temperatures, Cycle Electric rectifying regulators block current to control voltage; this...
    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
    Designed for direct OEM replacements, Made in the U.S.A.
    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
    Control voltage on Harley-Davidson alternators, unlike other rectifiers or regulators that dump to ground and cause maximum stator current and higher temperatures, Cycle Electric rectifying regulators block current to control voltage; this reduces stator...
    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
    Control voltage on Harley-Davidson and Buell alternators, unlike other rectifiers or regulators that dump to ground and cause maximum stator current and higher temperatures, Cycle Electric rectifying regulators block current to control voltage; 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
    Control voltage on Harley-Davidson and Buell alternators, unlike other rectifiers or regulators that dump to ground and cause maximum stator current and higher temperatures, Cycle Electric rectifying regulators block current to control voltage; this...
    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
    Designed for direct OEM replacement, Made in the U.S.A.
    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

    $638.39
    Provide 25A at idle and 40A continuously above 2800 rpm, Unique narrow rotor and stator fit into Softail/Dyna/FLT primary cases as used by most custom builders and the voltage regulator bolts on the stock location without any frame modifications,...
    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
    $638.39
    Qty in Cart: 0
    Quantity:
    Price:
    $638.39
    Subtotal:
  • COMPU-FIRE Charging - System - 40A 55570

    COMPU-FIRE Charging - System - 40A 55570

    COMPU-FIRE

    $613.86
    Provide 25A at idle and 40A continuously above 2800 rpm, Unique narrow rotor and stator fit into Softail/Dyna/FLT primary cases as used by most custom builders and the voltage regulator bolts on the stock location without any frame modifications,...
    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
    $613.86
    Qty in Cart: 0
    Quantity:
    Price:
    $613.86
    Subtotal:
  • COMPU-FIRE Replacement - Stator 55404

    COMPU-FIRE Replacement - Stator 55404

    COMPU-FIRE

    $258.50
    Unique narrow stator fit into Softail/Dyna/FLT primary cases as used by most custom builders and the voltage regulator bolts on the stock location without any frame modifications, Ideal for fuel-injected engines and bikes with overdrive-type...
    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
    $258.50
    Qty in Cart: 0
    Quantity:
    Price:
    $258.50
    Subtotal:
  • COMPU-FIRE Stator - 40A 3-Phase - Twin Cam 55405

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

    COMPU-FIRE

    $262.57
    Unique narrow stator fit into Softail/Dyna/FLT primary cases as used by most custom builders and the voltage regulator bolts on the stock location without any frame modifications, Ideal for fuel-injected engines and bikes with overdrive-type...
    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
    $262.57
    Qty in Cart: 0
    Quantity:
    Price:
    $262.57
    Subtotal:
  • COMPU-FIRE Vented Rotor 55406

    COMPU-FIRE Vented Rotor 55406

    COMPU-FIRE

    $184.97
    Unique narrow rotor fits into Softail/Dyna/FLT primary cases as used by most custom builders and the voltage regulator bolts on the stock location without any frame modifications, Precision-balanced vented rotor keeps the stator cooler in closed primary...
    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
    $184.97
    Qty in Cart: 0
    Quantity:
    Price:
    $184.97
    Subtotal:
  • COMPU-FIRE Charging System Regulator 55402

    COMPU-FIRE Charging System Regulator 55402

    COMPU-FIRE

    $339.24
    Voltage regulator output is calibrated to 14.25V from idle on up, Ideal for fuel-injected engines and bikes with overdrive-type transmissions, Made in the U.S.A.
    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
    $339.24
    Qty in Cart: 0
    Quantity:
    Price:
    $339.24
    Subtotal:
  • COMPU-FIRE 32A Charging System Kit - Harley Davidson 55522

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

    COMPU-FIRE

    $749.27
    Kit includes stator, rotor and a black series-type regulator, Series-type regulator reduces load on stator and decreases engine drag, Not for fuel-injected models.
    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
    $749.27
    Qty in Cart: 0
    Quantity:
    Price:
    $749.27
    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

    $283.58
    Kit includes stator, rotor and a black series-type regulator, Series-type regulator reduces load on stator and decreases engine drag, Not for fuel-injected models.
    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
    $283.58
    Qty in Cart: 0
    Quantity:
    Price:
    $283.58
    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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