Availability
Compu-Fire Alternators
Compu-Fire replacement alternators feature quality construction and are a dependable solution to your charging problems. Available in a variety of amperages and styles, they allow you to choose the right one for your ride and the accessories you run. Compu-Fire alternators have the power you need to keep you going.
Not Yet Reviewed
$265.74
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$728.59
Compu-Fire 40-Amp 3-Phase Charging System Kits with Vented Rotor
Compu-Fire products are renowned for robust performance and quality in longevity, and they offer a complete line of components to help you achieve optimum electrical performance for your Harley Davidson® motorcycle. Compu-Fire 40-amp 3Phase charging systems contain the proper parts to replace or upgrade your bike's system. These convenient kits with vented rotor (for wet primary) allow additional cooling for the stator. They provide matched components, ensuring the correct fit, compatibility, and performance on your Harley®, delivering 25 amps at idle and 40 amps continuously above 2,800 rpm. Select the proper kit for your motorcycle. Kit components include: * Alternating rotor * 40-amp stator * Compu-Fire voltage regulator * Large flanged seal spacer * Spacer washer (2.81 in. O.D. x .219 in. thick) except Softail/Dyna
Not Yet Reviewed
$577.58
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$613.29
Compu-Fire 40-Amp 3-Phase Charging System Kits with Non-Vented Rotor
Compu-Fire products are renowned for robust performance and quality in longevity, and they offer a complete line of components to help you achieve optimum electrical performance for your Harley Davidson® motorcycle. Compu-Fire 40-amp 3Phase charging systems contain the proper parts to replace or upgrade your bike's system. These convenient kits with non-vented rotor (for open primary) provide matched components, ensuring the correct fit, compatibility, and performance on your Harley®, delivering 25 amps at idle and 40 amps continuously above 2,800 rpm. Select the proper kit for your motorcycle. Kit components include: * Alternating rotor * 40-amp stator * Compu-Fire voltage regulator * Large flanged seal spacer * Spacer washer (2.81 in. O.D. x .219 in. thick) except Softail/Dyna
Not Yet Reviewed
$577.58
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$650.08
Compu-Fire Voltage Regulators
Keep your motorcycle's charging system operating at peak performance with Compu-Fire voltage regulators. Designed for demanding V-twin applications, these high-quality regulators deliver stable, consistent voltage output to help protect batteries and sensitive electrical components while promoting reliable charging performance from idle to cruising speeds. Available in a variety of amperage ratings and configurations, including replacement regulators for 32A, 38A, and 40A charging systems, Compu-Fire regulators are engineered for durability, efficient heat dissipation, and dependable operation in harsh riding conditions. Whether you're restoring a classic Harley-Davidson®, upgrading a high-performance build, or replacing a worn factory unit, Compu-Fire voltage regulators provide the reliability and charging efficiency riders demand. Select the model for your application needs.
Not Yet Reviewed
$174.04
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$366.75
Compu-Fire 32-Amp Charging System Replacement Rotors
Compu-Fire 32-amp charging system replacement rotors are precision-engineered alternator components designed for Harley-Davidson© motorcycles (primarily 1981-2000 Evolution Big Twin models). They work alongside the stator to generate electrical power for the battery and accessories. Key features and specifications: * Function: Serves as a direct OEM replacement to restore or maintain proper charging output * Compatibility: Designed to fit 32-amp charging systems with a standard or narrow rotor design on carbureted Evo engines * Build quality: Constructed with stamped ferrous steel and permanent magnetic bonding to handle engine heat and operational vibration * Balance: Precision-balanced to ensure smooth, low-vibration rotation inside the primary drive
Not Yet Reviewed
$157.01
Compu-Fire Stators
Compu-Fire stators are high-output electrical replacement and performance rotor components. They're primarily designed for 1980s-and-up Harley-Davidson© Big Twin (Evolution and Twin Cam) motorcycles to generate electrical power for the charging system. What they do: * Power generation: Stators work inside the engine's primary case as part of the alternator/charging system to convert mechanical energy into AC electrical power * High output: Unlike standard OEM stators, Compu-Fire options—such as their 32-amp and 40-amp 3-phase systems—deliver increased and more reliable electrical current * Narrow profile design: Many Compu-Fire stators feature a unique narrow profile built to fit cleanly inside stock or custom Softail, Dyna, and FLT primary cases without needing frame or case modifications * Heat management: They're often paired with specialized low-drag or series-type voltage regulators and vented rotors to reduce engine drag, lower operating temperatures, and handle heavy electrical loads from fuel injection or aftermarket accessories * Common models and types: -- 55404 (40 amp 3-Phase): Built for 1981-99 Harley© Evolution Big Twin models -- 55405 (40 amp 3-Phase): Built for Twin Cam engines -- 55530 (32 amp): A direct replacement style 32-amp stator for 1981-99 Evo and aftermarket Big Twin models -- 55534 (32 amp): Fits carbureted models only, including 1999-2003 Harley-Davidson© models
Not Yet Reviewed
$133.41
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$266.82
Compu-Fire 32-Amp Charging System Kits
Compu-Fire products are renowned for robust performance and quality in longevity, and they offer a complete line of components to help you achieve optimum electrical performance for your Harley Davidson® motorcycle. Compu-Fire 32-amp charging systems contain the proper parts to replace or upgrade your bike's system. These convenient kits provide matched components, ensuring the correct fit, compatibility, and performance on your Harley®. Select the 32-amp charging system designed for your motorcycle. Kit components include: * Alternator rotor * Large washer * Small washer * 32-amp stator * Compu-Fire voltage regulator * #10 insulated ring terminal * 1/4 in. un-insulated ring terminal * 3/8 in. un-insulated ring terminal
Not Yet Reviewed
$394.75
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$704.99
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