USA-1 USA-0478 Voltage Regulator Xlsa 1978-84HARLEY

( Brand: Usa-1 ), ( Type: Voltage Regulator ), ( Manufacturer Warranty: Yes ), ( Oe/oem Part Number: 74504-78 ), ( Manufacturer Part Number: USA-0478 ), ( Finish: Black ), ( Placement On Vehicle: Front )

Review USA-1 Voltage Regulator Xlsa fits SPORTSTER ROADSTER XR1000 XLCH XLH XLS

Introducing the USA-1 USA-0478 Voltage Regulator, an essential component for the optimal performance of your 1978-84 Harley-Davidson XLCH Sportster, XLH Roadster, XLS, XLSA, and XR1000 motorcycles. This voltage regulator is specifically designed to meet the unique electrical needs of these iconic Harley-Davidson models.

The USA-1 USA-0478 Voltage Regulator is a high-quality, rebuilt regulator that ensures reliable and consistent electrical output. It is engineered to replace the original regulator, providing a cost-effective solution without compromising on performance. This regulator is built to last, featuring a robust design that can withstand the rigors of regular motorcycle use.

The USA-1 USA-0478 Voltage Regulator is designed to maintain a consistent battery voltage. It does this by regulating the voltage output from the alternator, ensuring that the battery is charged properly while preventing overcharging. This is crucial for the longevity of your motorcycle's battery and electrical system.

This voltage regulator is easy to install and comes with all necessary hardware for a straightforward installation process. It is also compatible with most aftermarket charging systems, making it a versatile choice for Harley-Davidson enthusiasts.

In summary, the USA-1 USA-0478 Voltage Regulator is an essential upgrade for any 1978-84 Harley-Davidson XLCH Sportster, XLH Roadster, XLS, XLSA, or XR1000 motorcycle. It provides reliable and consistent electrical output, ensuring the longevity of your battery and electrical system while offering easy installation and compatibility with most aftermarket charging systems.

The USA-1 USA-0478 voltage regulator is a popular aftermarket option for Harley-Davidson motorcycles manufactured between 1978 and 1984, including the XLCH Sportster, XLH Roadster, XLS, XLSA, and XR1000 models. This regulator is known for providing a more consistent electrical output than the original equipment, which can lead to improved charging system performance and extended battery life. Here are some pros and cons to consider before making a purchase:

1. Enhanced charging system performance: The USA-1 USA-0478 voltage regulator delivers a more stable voltage output, ensuring that the battery is charged effectively and efficiently.

2. Improved battery life: By providing a more consistent charging output, this regulator can help extend the life of the motorcycle's battery.

3. Better reliability: Aftermarket voltage regulators like the USA-1 USA-0478 are often built to higher standards than original equipment, resulting in increased reliability and durability.

4. Easy installation: The USA-1 USA-0478 is designed to be a direct replacement for the original Harley-Davidson voltage regulator, making installation straightforward and hassle-free.

1. Cost: Aftermarket voltage regulators like the USA-1 USA-0478 can be more expensive than original equipment.

2. Potential compatibility issues: While the USA-1 USA-0478 is designed to fit a wide range of Harley-Davidson models, it's essential to ensure that it's the correct fit for your specific motorcycle.

3. No factory warranty: Since this is an aftermarket part, it won't come with the same level of factory warranty coverage as the original equipment.

In conclusion, the USA-1 USA-0478 voltage regulator can be a valuable investment for Harley-Davidson motorcycle owners looking to improve their charging system performance and extend battery life. While there are some potential drawbacks, such as cost and potential compatibility issues, the benefits often outweigh the downsides. Ultimately, it's essential to ensure that this is the correct regulator for your specific motorcycle model and year before making a purchase. If you're confident that it's the right choice, the USA-1 USA-0478 voltage regulator can be a worthwhile investment for your Harley-Davidson.

Details:

Fit the following: XLCH Sportster XLH Roadster XLS XLSA XLX-61 XR1000 1978-1984, Best Bx TBB 5M. New open box, voltage Regulator for 1978-84Harley XLCH SPORTSTER XLH Roadster XLS XLSA XR10 Replaces OEM Numbers: HARLEY-DAVIDSON: 74504-78 HSIU CHIANG: RG-0032.

part #: usa0478 prices

• $67.00-$160.00

specifications rightrectifier:

• for models: Xr1000, Xlch, Xlh, Xls, Sportster, Roadster
• brand: Usa-1
• type: Voltage Regulator
• manufacturer warranty: Yes
• oe/oem part number: 74504-78
• manufacturer part number: USA-0478
• finish: Black
• placement on vehicle: Front

general rightrectifier:

• Motorcycle Scooter Parts Accessories > Electrical Ignition Components > Voltage Regulators Rectifiers
• condition: New other see details

seller rightrectifier:

• city: Arlington height, Illinois
• # reviews: 7391
• rating: 99.7%

returns rightrectifier:

• paid by: Seller
• time: 30 Days
• policy: Returns Accepted

offer rightrectifier:

• availability: In Stock
• sold: 0
• started: August 25, 2025
• options: Ship-to-home
• quantity: 1

shipping rightrectifier:

• transit: 3-8 Days
• service: USPS Ground Advantage
• type: Fixed
• class: Standard
• cost: $7.95
• carrier: USPS

payments rightrectifier:

• wallet: Apple-pay
• other
• credit card: Diners-club

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