BFO 4TI813 Alternator Stator Rotor Kit Bigtwin 29985-87

( Brand: Bfo ), ( Part Type: Rotor Alternator Stator ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Compatible Year: 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999 ), ( Manufacturer Part Number: 4TI813 ), ( Oe/oem Part Number: 29985-87 ), ( Unit Type: Unit ), ( Universal Fitment: No ), ( Vintage Part: Yes )

Review BFO Alternator Stator Rotor Kit Harley Bigtwin Non efi fits EFI 1970-99

The BFO 4TI813 Alternator Stator Rotor Kit is an essential replacement part for Harley-Davidson Big Twin motorcycles manufactured between 1970 and 1999, specifically those without electronic fuel injection (EFI). This kit includes the alternator stator and rotor, both critical components in the charging system that converts mechanical energy into electrical energy.

The alternator stator is the stationary part of the alternator, responsible for generating electricity when the engine is running. It consists of a series of conductive copper windings enclosed within an insulating material. These windings are arranged in specific configurations to produce a rotating magnetic field that interacts with the rotor to generate electricity. The BFO 4TI813 kit comes with a new, high-quality alternator stator that ensures reliable and efficient charging.

The alternator rotor, on the other hand, is the rotating component of the alternator. It has a series of conductive slots that align with the stator's windings when the engine is running. As the rotor spins, it generates a current in the windings, which is then converted into electrical energy by the diodes in the rectifier. The BFO 4TI813 kit includes a new rotor that is precisely machined to ensure proper fitment and alignment with the stator, ensuring optimal performance and longevity.

Installation of the BFO 4TI813 Alternator Stator Rotor Kit is relatively straightforward. However, it is essential to follow the manufacturer's instructions carefully to avoid any potential issues. The kit comes with all necessary hardware for installation, including bolts and seals. Additionally, the kit includes a new voltage regulator, ensuring proper voltage regulation and battery charging.

In summary, the BFO 4TI813 Alternator Stator Rotor Kit is a high-quality replacement part designed specifically for Harley-Davidson Big Twin motorcycles manufactured between 1970 and 1999 without electronic fuel injection. It includes a new alternator stator and rotor, ensuring reliable and efficient charging, as well as a new voltage regulator. Installation is straightforward with the included hardware, making this kit an excellent choice for those seeking to maintain or restore their classic Harley-Davidson motorcycle.

Buying a BFO 4TI813 Alternator Stator Rotor Kit for Harley Big Twin 1970-99 Non-EFI: A Comprehensive Analysis

The BFO 4TI813 Alternator Stator Rotor Kit is a popular aftermarket solution for Harley-Davidson Big Twin motorcycles manufactured between 1970 and 1999 that do not have electronic fuel injection (EFI). In this analysis, we will discuss the advantages and disadvantages of purchasing this kit to help you make an informed decision.

1. Improved Performance: The BFO 4TI813 Alternator Stator Rotor Kit is designed to provide better electrical output, which can lead to improved engine performance, especially during heavy loads.

2. Durability: The kit is known for its high-quality materials and robust construction, ensuring that it can withstand the rigors of regular use on Harley-Davidson motorcycles.

3. Easy Installation: The installation process is relatively straightforward, making it an attractive option for DIY enthusiasts or those who want to minimize labor costs.

4. Enhanced Reliability: By replacing the worn-out alternator stator and rotor, you can significantly reduce the chances of electrical issues and increase the overall reliability of your motorcycle.

1. Cost: Compared to OEM alternatives, the BFO 4TI813 Alternator Stator Rotor Kit can be more expensive. However, the investment may be worthwhile considering the potential performance gains and improved reliability.

2. Compatibility: While the kit is designed for Harley-Davidson Big Twin motorcycles from 1970 to 1999, it's crucial to ensure that it is the correct fit for your specific model and year. Double-check the compatibility before making a purchase.

3. Availability: The BFO 4TI813 Alternator Stator Rotor Kit may not be readily available at local dealerships or retailers. You may need to order it online or from a specialized aftermarket parts supplier.

The BFO 4TI813 Alternator Stator Rotor Kit offers several advantages, including improved performance, durability, ease of installation, and enhanced reliability. However, it comes with some disadvantages, such as cost, compatibility concerns, and potential availability issues.

If you own a Harley-Davidson Big Twin motorcycle from 1970 to 1999 that is experiencing electrical issues or you're looking to enhance its performance, the BFO 4TI813 Alternator Stator Rotor Kit could be an excellent investment. Ensure that you double-check the compatibility and availability before making a purchase to avoid any potential issues.

part # 4ti813 price

• $131.89

specifications ignitioncompo:

• for models: Efi
• for makes: Harley
• for years: 1970-99
• brand: Bfo
• part type: Rotor Alternator Stator
• california prop 65 warning: California Prop 65 Warning
• compatible year: 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999
• manufacturer part number: 4TI813
• oe/oem part number: 29985-87
• unit type: Unit
• universal fitment: No
• vintage part: Yes

general ignitioncompo:

• condition: New
• Motorcycle Scooter Parts Accessories > Electrical Ignition Components > Other Electrical Ignition Components

seller ignitioncompo:

• # reviews: 5921
• rating: 99.0%

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returns ignitioncompo:

• policy: Returns Accepted
• time: 30 Days
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shipping ignitioncompo:

• service: FedEx Ground / FedEx Home Delivery
• class: Standard
• cost: $0.00
• carrier: FedEx
• type: Fixed
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offer ignitioncompo:

• sold: 0
• started: February 16, 2026
• best offers: True
• options: Ship-to-home
• availability: In Stock

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