YAMAHA 173-81910-20-00 Rectifier Voltage Regulator 12-VOLT

( Type: Rectifier Voltage Regulator ), ( Country Of Origin: Japan ), ( UPC: 173819102000 )

Review YAMAHA Rectifier Voltage Regulator 12-volt fits CS3B 1971

Yamaha CS3B 1971 Model 12-Volt Rectifier Voltage Regulator (173-81910-20-00)

The Yamaha CS3B 12-volt Rectifier Voltage Regulator, model number 173-81910-20-00, is an essential component designed specifically for Yamaha motorcycles manufactured around 1971. This vintage regulator ensures the efficient and stable charging and voltage regulation of your motorcycle's battery system.

This regulator is a crucial piece of the electrical charging system, allowing the engine to charge the battery while the motorcycle is running. The CS3B is designed for 12-volt systems and is well-known for its robustness and reliability, having served motorcycle enthusiasts for decades.

The regulator's housing is made of high-quality materials, ensuring durability and resistance to harsh environmental conditions. The internal components include a diode rectifier that converts the alternating current (AC) produced by the motorcycle's charging system into direct current (DC), which is used to charge the battery. Additionally, the regulator contains a voltage regulator that maintains a consistent 12 volts, preventing the battery from overcharging or undercharging.

Installation of this regulator is relatively straightforward. It can be mounted on various locations, usually near the battery or on the motorcycle's frame. Proper electrical connections must be made to ensure a successful installation, and it is recommended to consult your motorcycle's service manual for specific instructions.

Maintaining this regulator involves regular checks for proper voltage output and the absence of any leaks or cracks in the housing. If any issues are detected, it may be necessary to replace the regulator to ensure the continued optimal performance of your motorcycle's electrical system.

In summary, the Yamaha CS3B 12-volt Rectifier Voltage Regulator (173-81910-20-00) is a vital component for maintaining the charging and voltage regulation of your 1971 Yamaha motorcycle. With its robust design, reliable performance, and straightforward installation process, this regulator is a must-have for any serious motorcycle enthusiast.

Pros and Cons of Buying Yamaha 1971 CS3B 12-Volt Rectifier Voltage Regulator (Model No. 173-81910-20-00)

a) Suitable for Yamaha CS3B engines: This specific regulator is designed to work with the Yamaha CS3B engine, ensuring a proper fit and optimal performance.

b) 12-Volt output: This regulator is suitable for 12-volt systems, which are commonly used in various applications, such as boats, RVs, and automobiles.

c) Replacement part: If your original regulator is not functioning correctly, this replacement part can help you get your engine or system back up and running.

d) Relatively easy installation: Installing the regulator may not require extensive mechanical knowledge or skills.

a) Limited compatibility: This regulator is only suitable for the Yamaha CS3B engine, so it may not be a viable option for other engines or systems.

b) Wear and tear: Like any other mechanical component, the regulator may wear out over time due to usage and environmental conditions, requiring replacement.

c) Potential for electrical issues: Improper installation or connection of the regulator to the system can lead to electrical issues, potentially damaging other components.

The Yamaha 1971 CS3B 12-Volt Rectifier Voltage Regulator (Model No. 173-81910-20-00) is a valuable replacement part for those with Yamaha CS3B engines. Its 12-volt output and relatively easy installation process make it an attractive option for individuals looking to keep their engines or systems functioning optimally. However, it is essential to remember that this regulator has limited compatibility and may require professional installation to avoid potential electrical issues.

If you own a Yamaha CS3B engine and are experiencing issues with your voltage regulator, the Yamaha 1971 CS3B 12-Volt Rectifier Voltage Regulator (Model No. 173-81910-20-00) is a suitable replacement option. Ensure that you follow the manufacturer's instructions for installation carefully to avoid any electrical issues. If you are unsure about the installation process, consider seeking professional help to ensure a successful installation and optimal performance.

Details:

Packages under 1 pound ship via USPS Ground Advantage. This includes: bearings, ball joints, bushings, tie rod ends, seals, brake pads, gaskets, pistons, rings, clutch plates, cables, and similar components. If one isn provided, we ll attempt to contact you. All electronic components are tested prior to sale.

All wear items should be inspected and replaced as needed before use. We inspect, research, clean, and process them daily. 1971 YAMAHA CS3B RECTIFIER voltage REGULATOR 173-81910-20-00: This part is in good used condition with typical signs of wear from normal use. Please review all photos for exact condition and compatibility before purchasing.

Most items ship via UPS Ground.

part #: 173819102000 prices

• $99.99-$100.00

specifications rightrectifier:

• for models: Cs3b
• for makes: Yamaha
• for years: 1971
• type: Rectifier Voltage Regulator
• country of origin: Japan
• upc: 173819102000

general rightrectifier:

• condition: Used
• Motorcycle Scooter Parts Accessories > Electrical Ignition Components > Voltage Regulators Rectifiers

offer rightrectifier:

• options: Ship-to-home
• sold: 0
• started: January 17, 2026
• quantity: 1
• availability: In Stock

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• rating: 99.7%
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• policy: Returns Accepted

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