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
- Cycle Electric Inc Rectifying Regulator Harley-Davidson CE-324 – High-output rectifying regulator; built-in rectifier for Big Twin and Sportster charging systems.
- Drag Specialties Regulator XL 92-93 Chrome 74523-92CHR – Chrome voltage regulator for 1992-1993 Sportster; direct OEM replacement with classic look.
- Drag Specialties Voltage Regulator FL/FLH MC-DRAG009 – Solid-state regulator for FL/FLH Touring; reliable charging for 1989-1999 models.
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
-
COMPU-FIRE Voltage Regulator 38A - Harley Davidson 55150
COMPU-FIRE
$295.85New generation series regulators reduce load on stator and decrease engine drag, When not charging, regulator goes to an open circuit, so there is no load on the stator or rotor, Wire harness included, Made in the U.S.A.09131703- SKU:
- 09131703
- Availability:
- Ships Same Business Day
- Weight:
- 1.34 LBS
- AMPS:
- 38 A
- PRODUCT NAME:
- REGULATOR
- BATTERY VOLTAGE:
- 12 V
- UNITS:
- EACH
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLACK
- TYPE:
- SERIES-TYPE
$295.85 -
COMPU-FIRE 32A Charging System Kit - Harley Davidson 55520
COMPU-FIRE
$434.12Kit 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.DS195201- SKU:
- DS195201
- Availability:
- Ships Same Business Day
- Weight:
- 8.15 LBS
- AMPS:
- 32 A
- UNITS:
- KIT
- BATTERY VOLTAGE:
- 12 V
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- CHARGING SYSTEM
$434.12 -
COMPU-FIRE Charging - System - 40A 55560
COMPU-FIRE
$613.86Provide 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,...21120097- SKU:
- 21120097
- Availability:
- Ships Same Business Day
- Weight:
- 9.81 LBS
- AMPS:
- 40 A
- BATTERY VOLTAGE:
- 12 V
- PRODUCT NAME:
- CHARGING SYSTEM
- ALTERNATOR PHASE TYPE:
- THREE-PHASE
- UNITS:
- EACH
- RIDING STYLE:
- STREET
$613.86 -
COMPU-FIRE Charging - System - 40A 55576
COMPU-FIRE
$638.39Provide 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,...21120152- SKU:
- 21120152
- Availability:
- Ships Same Business Day
- Weight:
- 10.75 LBS
- ALTERNATOR PHASE TYPE:
- THREE-PHASE
- AMPS:
- 40 A
- BATTERY VOLTAGE:
- 12 V
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- PRODUCT NAME:
- CHARGING SYSTEM
$638.39 -
COMPU-FIRE Charging - System - 40A 55566
COMPU-FIRE
$651.81Provide 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,...21120153- SKU:
- 21120153
- Availability:
- Ships Same Business Day
- Weight:
- 10.55 LBS
- BATTERY VOLTAGE:
- 12 V
- AMPS:
- 40 A
- PRODUCT NAME:
- CHARGING SYSTEM
- ALTERNATOR PHASE TYPE:
- THREE-PHASE
- UNITS:
- EACH
- RIDING STYLE:
- STREET
$651.81 -
DRAG SPECIALTIES Regulator - FX/FLST '07 - Black 74540-07BLK
DRAG SPECIALTIES
$162.19Two years of development and design went into producing a superior regulator, Fully assembled in the USA with domestic made electrical boards, Tested three different times during the assembly process to ensure the best possible product, Superior internal...21121026- SKU:
- 21121026
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
- BATTERY VOLTAGE:
- 12 V
- COLOR/FINISH:
- BLACK
- UNITS:
- EACH
- AMPS:
- 40 A
- PRODUCT NAME:
- REGULATOR
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
$162.19 -
DRAG SPECIALTIES Regulator - FX/FLST '08-'10 - Black 74540-08BLK
DRAG SPECIALTIES
$203.79Two years of development and design went into producing a superior regulator, Fully assembled in the USA with domestic made electrical boards, Tested three different times during the assembly process to ensure the best possible product, Superior internal...21121028- SKU:
- 21121028
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- UNITS:
- EACH
- BATTERY VOLTAGE:
- 12 V
- COLOR/FINISH:
- BLACK
- AMPS:
- 40 A
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- REGULATOR
- RIDING STYLE:
- STREET
$203.79 -
DRAG SPECIALTIES Regulator - FXS '11-'17 - Black 74540-11BLK
DRAG SPECIALTIES
$203.79Two years of development and design went into producing a superior regulator, Fully assembled in the USA with domestic made electrical boards, Tested three different times during the assembly process to ensure the best possible product, Superior internal...21121030- SKU:
- 21121030
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- PRODUCT NAME:
- REGULATOR
- AMPS:
- 45 A
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- AMPS:
- 60 A
- BATTERY VOLTAGE:
- 12 V
- COLOR/FINISH:
- BLACK
$203.79 -
DRAG SPECIALTIES Regulator - FL '99-'01 - Black 74505-97BLK
DRAG SPECIALTIES
$203.79Two years of development and design went into producing a superior regulator, Fully assembled in the USA with domestic made electrical boards, Tested three different times during the assembly process to ensure the best possible product, Superior internal...21121032- SKU:
- 21121032
- Availability:
- Ships Same Business Day
- Weight:
- 2.35 LBS
- UNITS:
- EACH
- AMPS:
- 38 A
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- REGULATOR
- RIDING STYLE:
- STREET
- BATTERY VOLTAGE:
- 12 V
- COLOR/FINISH:
- BLACK
$203.79Qty in Cart: 0Quantity:Price:$203.79Subtotal: -
DRAG SPECIALTIES Regulator - FL '99-'01 - Chrome 74505-97CHR
DRAG SPECIALTIES
$210.03Two years of development and design went into producing a superior regulator, Fully assembled in the USA with domestic made electrical boards, Tested three different times during the assembly process to ensure the best possible product, Superior internal...21121033- SKU:
- 21121033
- Availability:
- Ships Same Business Day
- Weight:
- 2.35 LBS
- COLOR/FINISH:
- CHROME
- BATTERY VOLTAGE:
- 12 V
- UNITS:
- EACH
- AMPS:
- 38 A
- PRODUCT NAME:
- REGULATOR
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
$210.03 -
DRAG SPECIALTIES Regulator - FL '02-'03 - Black 74505-02BLK
DRAG SPECIALTIES
$203.79Two years of development and design went into producing a superior regulator, Fully assembled in the USA with domestic made electrical boards, Tested three different times during the assembly process to ensure the best possible product, Superior internal...21121034- SKU:
- 21121034
- Availability:
- Ships Same Business Day
- Weight:
- 2.30 LBS
- AMPS:
- 38 A
- AMPS:
- 45 A
- BATTERY VOLTAGE:
- 12 V
- PRODUCT NAME:
- REGULATOR
- COLOR/FINISH:
- BLACK
- UNITS:
- EACH
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
$203.79Qty in Cart: 0Quantity:Price:$203.79Subtotal: -
DRAG SPECIALTIES Regulator - FL '02-'03 - Chrome 74622-02CHR
DRAG SPECIALTIES
$210.03Two years of development and design went into producing a superior regulator, Fully assembled in the USA with domestic made electrical boards, Tested three different times during the assembly process to ensure the best possible product, Superior internal...21121035- SKU:
- 21121035
- Availability:
- Ships Same Business Day
- Weight:
- 2.30 LBS
- AMPS:
- 38 A
- AMPS:
- 45 A
- BATTERY VOLTAGE:
- 12 V
- COLOR/FINISH:
- CHROME
- UNITS:
- EACH
- PRODUCT NAME:
- REGULATOR
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
$210.03 -
DRAG SPECIALTIES Regulator - FL '04-'05 - Black 74505-04BLK
DRAG SPECIALTIES
$203.79Two years of development and design went into producing a superior regulator, Fully assembled in the USA with domestic made electrical boards, Tested three different times during the assembly process to ensure the best possible product, Superior internal...21121036- SKU:
- 21121036
- Availability:
- Ships Same Business Day
- Weight:
- 2.20 LBS
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- REGULATOR
- AMPS:
- 45 A
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- AMPS:
- 38 A
- BATTERY VOLTAGE:
- 12 V
- COLOR/FINISH:
- BLACK
$203.79 -
DRAG SPECIALTIES Regulator - FL '04-'05 - Chrome 74622-04CHR
DRAG SPECIALTIES
$210.03Two years of development and design went into producing a superior regulator, Fully assembled in the USA with domestic made electrical boards, Tested three different times during the assembly process to ensure the best possible product, Superior internal...21121037- SKU:
- 21121037
- Availability:
- Ships Same Business Day
- Weight:
- 2.15 LBS
- PRODUCT NAME:
- REGULATOR
- UNITS:
- EACH
- AMPS:
- 45 A
- COLOR/FINISH:
- CHROME
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- AMPS:
- 38 A
- BATTERY VOLTAGE:
- 12 V
$210.03 -
DRAG SPECIALTIES Regulator - FL '06-'08 - Black 74505-06BLK
DRAG SPECIALTIES
$203.79Two years of development and design went into producing a superior regulator, Fully assembled in the USA with domestic made electrical boards, Tested three different times during the assembly process to ensure the best possible product, Superior internal...21121038- SKU:
- 21121038
- Availability:
- Ships Same Business Day
- Weight:
- 2.10 LBS
- PRODUCT NAME:
- REGULATOR
- UNITS:
- EACH
- AMPS:
- 45 A
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- AMPS:
- 60 A
- BATTERY VOLTAGE:
- 12 V
- COLOR/FINISH:
- BLACK
$203.79 -
DRAG SPECIALTIES Regulator - FL '06-'08 - Chrome 74622-06CHR
DRAG SPECIALTIES
$210.03Two years of development and design went into producing a superior regulator, Fully assembled in the USA with domestic made electrical boards, Tested three different times during the assembly process to ensure the best possible product, Superior internal...21121039- SKU:
- 21121039
- Availability:
- Ships Same Business Day
- Weight:
- 2.05 LBS
- AMPS:
- 45 A
- UNITS:
- EACH
- AMPS:
- 60 A
- BATTERY VOLTAGE:
- 12 V
- COLOR/FINISH:
- CHROME
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- REGULATOR
- RIDING STYLE:
- STREET
$210.03Qty in Cart: 0Quantity:Price:$210.03Subtotal: -
DRAG SPECIALTIES Regulator - FXD '04-'05 - Black 74631-04BLK
DRAG SPECIALTIES
$176.75Two years of development and design went into producing a superior regulator, Fully assembled in the USA with domestic made electrical boards, Tested three different times during the assembly process to ensure the best possible product, Superior internal...21121040- SKU:
- 21121040
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- AMPS:
- 40 A
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- REGULATOR
- RIDING STYLE:
- STREET
- BATTERY VOLTAGE:
- 12 V
- COLOR/FINISH:
- BLACK
- UNITS:
- EACH
$176.75 -
DRAG SPECIALTIES Regulator - FXD '06-'07 - Chrome 74561-06CHR
DRAG SPECIALTIES
$178.83Two years of development and design went into producing a superior regulator, Fully assembled in the USA with domestic made electrical boards, Tested three different times during the assembly process to ensure the best possible product, Superior internal...21121043- SKU:
- 21121043
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
- UNITS:
- EACH
- AMPS:
- 40 A
- COLOR/FINISH:
- CHROME
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- REGULATOR
- RIDING STYLE:
- STREET
- BATTERY VOLTAGE:
- 12 V
$178.83 -
DRAG SPECIALTIES Regulator - FXD '08-'17 - Chrome 74561-08CHR
DRAG SPECIALTIES
$171.55Two years of development and design went into producing a superior regulator, Fully assembled in the USA with domestic made electrical boards, Tested three different times during the assembly process to ensure the best possible product, Superior internal...21121045- SKU:
- 21121045
- Availability:
- Ships Same Business Day
- Weight:
- 1.71 LBS
- COLOR/FINISH:
- CHROME
- AMPS:
- 40 A
- PRODUCT NAME:
- REGULATOR
- BATTERY VOLTAGE:
- 12 V
- UNITS:
- EACH
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
$171.55Qty in Cart: 0Quantity:Price:$171.55Subtotal: -
DRAG SPECIALTIES Regulator - FXD '99-'03 - Chrome 74518-99ACHR
DRAG SPECIALTIES
$145.55Two years of development and design went into producing a superior regulator, Fully assembled in the USA with domestic made electrical boards, Tested three different times during the assembly process to ensure the best possible product, Superior internal...21121051- SKU:
- 21121051
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- RIDING STYLE:
- STREET
- BATTERY VOLTAGE:
- 12 V
- AMPS:
- 32 A
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- REGULATOR
- COLOR/FINISH:
- CHROME
- UNITS:
- EACH
$145.55
