Motorcycle Alternator & Charging Parts
- All Balls®Generator (80-2002)Generator (80-2002) by All Balls®. When it comes to quality, All Balls® knows no compromises. All the products made by this stringent quality control conditions. The latest manufacturing methods coupled with the use of the...Used by pro racing pilots and amateur bikers around the worldBlend of astounding operation and unmatched reliability$221.45
- Arrowhead®Wildboar Alternator (AKI0002/400-48112)Wildboar Alternator by Arrowhead®. New replacement alternator matches original manufacturer specifications. Meets or exceeds original equipment output. Pleated fans, pulleys and hardware. High-temperature epoxy and dynamically balanced...High-quality, OEM rotating electrical parts for your rideBlend of power, efficiency, and dependability$293.90
- Arrowhead®Wildboar Alternator (AHA0001/400-44065)Wildboar Alternator by Arrowhead®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading...High-quality, OEM rotating electrical parts for your rideBlend of power, efficiency, and dependability$269.04
- Arrowhead®Wildboar Alternator (AMT0202/400-48059)Wildboar Alternator by Arrowhead®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading...High-quality, OEM rotating electrical parts for your rideBlend of power, efficiency, and dependability$269.04
- Arrowhead®Wildboar Alternator (AMT0253/400-48174)Wildboar Alternator by Arrowhead®. New replacement alternator matches original manufacturer specifications. Meets or exceeds original equipment output. Pleated fans, pulleys and hardware. High-temperature epoxy and dynamically balanced...High-quality, OEM rotating electrical parts for your rideBlend of power, efficiency, and dependability$281.00
- Arrowhead®Wildboar Stator Coil (AYA4000/340-58015)Wildboar Stator Coil by Arrowhead®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading...High-quality, OEM rotating electrical parts for your rideBlend of power, efficiency, and dependability$105.03
- Colony®Generator End Cover Screws (8154-2)Generator End Cover Screws (8154-2) by Colony®. O.E.M. style. Cadmium plated. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will...Designed specifically for Harley-Davidson motorcyclesExpected to provide the finest quality and value$10.15
- Colony®Generator End Cover Screws (8153-2)Generator End Cover Screws (8153-2) by Colony®. O.E.M. style. Chrome plated. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will...Designed specifically for Harley-Davidson motorcyclesExpected to provide the finest quality and value$13.81
- Colony®Generator Screws (8877-2)Generator Screws (8877-2) by Colony®. O.E.M. style Chrome plated generator end cover screws. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in...Designed specifically for Harley-Davidson motorcyclesExpected to provide the finest quality and value$15.24
- Colony®Generator Screws (8754-2)Generator Screws (8754-2) by Colony®. Allen style. Chrome plated. Knurled. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will...Designed specifically for Harley-Davidson motorcyclesExpected to provide the finest quality and value$13.81
- Colony®Generator Screws (8151-2)Generator Screws by Colony®. O.E.M. style. Chrome plated. Slotted. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your...Designed specifically for Harley-Davidson motorcyclesExpected to provide the finest quality and value$12.25
- Compu-Fire®3-Phase Charging System Rotor (55406)Universal 3-Phase Charging System Rotor by Compu-Fire®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured...Wicked style meets astounding performanceExcellent upgrade for die-hard performance fans$143.30
- Compu-Fire®32 Amp Charging System Kit (55522)32 Amp Charging System Kit by Compu-Fire®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...Wicked style meets astounding performanceExcellent upgrade for die-hard performance fans$523.25
- Compu-Fire®32 Amp Stator (55534)32 Amp Stator (55534) by Compu-Fire®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...Wicked style meets astounding performanceExcellent upgrade for die-hard performance fans$214.44
- Compu-Fire®Charging System Rotor (55650)Charging System Rotor (55650) by Compu-Fire®. Non-Vented. For 3 Phase System. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of...Wicked style meets astounding performanceExcellent upgrade for die-hard performance fans$137.94
- Compu-Fire®Charging System Rotor (55600)Charging System Rotor (55600) by Compu-Fire®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...Wicked style meets astounding performanceExcellent upgrade for die-hard performance fans$137.94
- Compu-Fire®Stator (55404)Stator (55404) by Compu-Fire®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading...Wicked style meets astounding performanceExcellent upgrade for die-hard performance fans$200.58
- Compu-Fire®Stator (55530)Stator (55530) by Compu-Fire®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading...Wicked style meets astounding performanceExcellent upgrade for die-hard performance fans$114.52
- Compu-Fire®Stator (55405)Stator by Compu-Fire®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading materials...Wicked style meets astounding performanceExcellent upgrade for die-hard performance fans$200.58
- Cycle Electric®60 Series 3-Phase Charging Kit (CE-63T)60 Series 3-Phase Charging Kit by Cycle Electric®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...Thoughtfully developed to serve the motorcycle industryManufactured with the use of the finest materials$585.62
- Cycle Electric®60 Series 3-Phase Charging Kit (CE-69S)60 Series 3-Phase Charging Kit by Cycle Electric®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...Thoughtfully developed to serve the motorcycle industryManufactured with the use of the finest materials$675.44
- Cycle Electric®60 Series 3-Phase Charging Kit (CE-62A)60 Series 3-Phase Charging Kit by Cycle Electric®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...Thoughtfully developed to serve the motorcycle industryManufactured with the use of the finest materials$643.80
- Cycle Electric®60 Series 3-Phase Charging Kit (CE-61A)60 Series 3-Phase Charging Kit (CE-61A) by Cycle Electric®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship....Thoughtfully developed to serve the motorcycle industryManufactured with the use of the finest materials$648.61
- Cycle Electric®60 Series 3-Phase Charging Kit (CE-69S-04)60 Series 3-Phase Charging Kit by Cycle Electric®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...Thoughtfully developed to serve the motorcycle industryManufactured with the use of the finest materials$658.80
- Cycle Electric®60 Series Replacement Stator (CE-6012)60 Series Replacement Stator by Cycle Electric®. Produces incredible low speed out put and an ultra smooth charge to ensure maximum battery life. Delivers up to 20 Amps at 1000 RPM and 38 Amps at 2500 RPM. Excellent choice for 84-96...Thoughtfully developed to serve the motorcycle industryManufactured with the use of the finest materials$154.47
- Cycle Electric®60 Series Replacement Stator (CE-6010)60 Series Replacement Stator (CE-6010) by Cycle Electric®. Produces incredible low speed out put and an ultra smooth charge to ensure maximum battery life. Delivers up to 20 Amps at 1000 RPM and 38 Amps at 2500 RPM. Excellent choice for...Thoughtfully developed to serve the motorcycle industryManufactured with the use of the finest materials$151.60
- Cycle Electric®60 Series Replacement Stator (CE-6011)60 Series Replacement Stator (CE-6011) by Cycle Electric®. Produces incredible low speed out put and an ultra smooth charge to ensure maximum battery life. Delivers up to 20 Amps at 1000 RPM and 38 Amps at 2500 RPM. Excellent choice for...Thoughtfully developed to serve the motorcycle industryManufactured with the use of the finest materials$150.39
- Cycle Electric®70 Series Charging Kit (CE-73T)70 Series Charging Kit by Cycle Electric®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...Thoughtfully developed to serve the motorcycle industryManufactured with the use of the finest materials$612.03
- Cycle Electric®70 Series Replacement Stator (CE-7010)70 Series Replacement Stator by Cycle Electric®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...Thoughtfully developed to serve the motorcycle industryManufactured with the use of the finest materials$185.79
- Cycle Electric®80 Series Charging Kit (CE-85T)80 Series Charging Kit by Cycle Electric®. 80 Series kits produce 32-Amps at 1000rpm and 50-Amps at 2500rpm. These kits offer an incredible increase in charging power when upgrading from a 32- or 38-Amp system and better durability...Thoughtfully developed to serve the motorcycle industryManufactured with the use of the finest materials$745.93
The charging system of a typical motorcycle consists of several parts, including an alternator or generator (magneto), battery, rectifier/voltage regulator, fuses, and wiring. The system is designed to generate electrical power that can be stored in the battery and used to power all of the electrical components of the bike. A motorcycle alternator produces an alternating current that needs to be rectified or transformed into a direct current to be stored in the battery. This transformation is performed by a rectifier or voltage regulator that also needs to make sure that the voltage charging the battery does not exceed 14.5 Volts.
Some models of vintage motorcycles were equipped with DC generators that produced enough energy to power the ignition, headlights, taillights, and horns. When bikes became more advanced, with lots of electrical equipment, such as a starter motor, turn signals, electronic fuel injection, and so on, motorcycle manufacturers switched to alternators. The majority of modern motorcycle alternators consist of thee separate pieces – a stator, rotor, and external voltage regulator. If needed, each of these components can be serviced separately. Some models of heavy touring motorcycles can be equipped with heavy-duty alternators designed as stand-alone units. They are mounted separately from the engine and driven by chains or gears from the crankshaft.
The rotor of a standard motorcycle alternator is mounted directly to the end of the crankshaft. Usually, it looks like a small wheel with powerful magnets mounted on it. Less commonly, instead of permanent magnets, rotors are equipped with electromagnets. The stator consists of a series of copper wire coils wound on iron poles. An alternator may utilize from one to a dozen such assemblies depending on the required output. Various designs feature external or internal architecture where magnets can revolve around or inside the stator coils. Any alternator uses electromagnetic induction to produce electricity – while spinning, magnets on the rotor induce an electrical current in the coils. In some motorcycle models, the alternator’s rotor also performs the role of a flywheel.
Since all electrical equipment of a motorcycle runs on direct current, the alternator’s output needs to be rectified and stabilized. A voltage rectifier or regulator transforms the alternating current coming from the alternator into direct current that can be stored in the battery. Modern rectifiers are based on series of semiconductor diode bridges that transform AC into DC. During its operation, the device produces heat that needs to be dissipated into the atmosphere. That is why motorcycle rectifiers/regulators usually come in finned aluminum cases and are exposed to the cooling air stream.
To check if the alternator of your bike works properly, you need to use a multimeter. First, test the voltage on the battery when the engine is off, then start the engine and measure the voltage again. The second figure must be higher and measure around 14.5 Volts. If you don’t have a multimeter, you can assess the voltage visually by turning on the headlight when the motor is not running. After starting the engine, twist the throttle. If the light becomes a bit brighter, your alternator produces additional power to recharge the battery. To find all parts and components that you may need for replacement, browse our online catalog of motorcycle alternator and charging parts.