HARLEY-DAVIDSON 34421-85B Ignition Module 32421-85B

( Brand: Harley-davidson ), ( Part Type: Ignition Module ), ( Oe/oem Part Number: 32421-85b ), ( Manufacturer Part Number: 34421-85B ), ( Vintage Part: Yes )

Review HARLEY DAVIDSON Oem Ignition Module fits DYNA FXR SE

The Harley-Davidson 34421-85B Ignition Module, also known as part number 32421-85B, is an essential component for the ignition system of select FXR and Dyna models from Harley-Davidson. This ignition module is specifically designed to provide reliable and efficient spark to the engine's cylinders, ensuring a smooth and powerful riding experience.

This ignition module is a digital square-wave design, which offers several advantages over traditional ignition systems. Its high-frequency square-wave spark delivers a stronger and more consistent spark to the engine, allowing for optimal combustion and improved engine performance. Furthermore, this digital design is less susceptible to interference from external sources, providing a more stable and reliable ignition system.

This Harley-Davidson ignition module is designed to fit and function with the FXR and Dyna model series, including but not limited to the FXRD Dynas, FXS Dynas, and FXWG Softails. It is a direct replacement for the original equipment manufacturer (OEM) ignition module and can be installed with ease, making it a popular choice for Harley-Davidson enthusiasts seeking to upgrade their bikes' ignition systems.

The ignition module measures approximately 2.2 inches long, 1.7 inches wide, and 0.8 inches tall, making it a compact yet vital component of the bike's ignition system. It is constructed from high-quality materials and is designed to withstand the rigors of regular use on a Harley-Davidson motorcycle.

The installation process for this ignition module is relatively straightforward. It can be installed with basic hand tools and does not require any extensive modifications to the bike. A detailed installation guide is included with the product, ensuring a hassle-free installation process.

Upgrading your Harley-Davidson motorcycle with a new ignition module, such as the 34421-85B, can provide several benefits, including improved engine performance, enhanced throttle response, and smoother idling. Additionally, a new ignition module can help prolong the life of the engine by providing a more consistent and reliable spark.

In summary, the Harley-Davidson 34421-85B Ignition Module is a vital component for the ignition system of select FXR and Dyna models from Harley-Davidson. Its digital square-wave design offers several advantages over traditional ignition systems, including improved performance, reliability, and consistency. Installing this ignition module is a straightforward process, making it an excellent choice for Harley-Davidson enthusiasts seeking to upgrade their bikes' ignition systems.

Pros and Cons of Buying Harley-Davidson Ignition Module FXR Dyna SE (34421-85B/32421-85B)

The Harley-Davidson Ignition Module FXR Dyna SE (34421-85B for FXRG models and 32421-85B for Dyna models) is a crucial component in the ignition system of Harley-Davidson motorcycles. Replacing a faulty ignition module can improve engine performance and prevent potential electrical issues. In this analysis, we will discuss the advantages and disadvantages of purchasing this ignition module.

1. Improved Engine Performance: A new ignition module can help improve engine performance by providing a more consistent spark to the engine, leading to better combustion and increased power.

2. Diagnosis of Electrical Issues: A faulty ignition module can cause various electrical issues, such as misfiring, hard starting, or even no starting at all. By replacing the faulty module, these problems can be effectively resolved.

3. Compatibility: The Harley-Davidson Ignition Module FXR Dyna SE (34421-85B/32421-85B) is specifically designed for FXRG and Dyna models, ensuring a perfect fit and compatibility.

4. Easy Installation: The ignition module is relatively easy to install, typically taking around 30 minutes to an hour, depending on the rider's experience and the availability of the necessary tools.

5. OEM Quality: The Harley-Davidson Ignition Module FXR Dyna SE (34421-85B/32421-85B) is an Original Equipment Manufacturer (OEM) part, meaning it is manufactured by the same company that originally produced it for the motorcycle. This ensures a high level of quality and reliability.

1. Cost: The Harley-Davidson Ignition Module FXR Dyna SE (34421-85B/32421-85B) can be quite expensive compared to aftermarket alternatives. This may not be an issue for some riders, but it can be a significant investment for others.

2. Availability: Depending on the location and availability, it may be difficult to find this ignition module in stock at local dealerships or retailers. Ordering it online or from the dealership may require waiting for a few days or even weeks for delivery.

3. Complexity: While the installation process is relatively straightforward, some riders may find the process confusing due to the various wiring connections and electrical components involved.

4. Potential for Error: When installing the ignition module, there is a risk of connecting the wires incorrectly, which could result in damage to the module or other electrical components. Careful attention to detail and the use of a wiring diagram are essential to avoid these issues.

The Harley-Davidson Ignition Module FXR Dyna SE (34421-85B/32421-85B) offers several advantages, including improved engine performance, effective diagnosis and resolution of electrical issues, compatibility, easy installation, and OEM quality. However, it also comes with some disadvantages, such as cost, availability, complexity, and the potential for error during installation. Ultimately, the decision to purchase this ignition module depends on the rider's priorities, budget, and technical abilities. For those who value the peace of mind that comes with OEM parts and the potential performance improvements, the investment may be worthwhile. For others, aftermarket alternatives may be a more cost-effective solution.

part # 3442185b prices

• $125.00-$159.99

specifications ignitioncompo:

• for models: Fxr, Se, Dyna
• for makes: Harley
• brand: Harley-davidson
• part type: Ignition Module
• oe/oem part number: 32421-85b
• manufacturer part number: 34421-85B
• vintage part: Yes

shipping ignitioncompo:

• cost: $12.00
• class: Economy
• service: Economy
• type: Fixed
• transit: 10-17 Days

general ignitioncompo:

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

returns ignitioncompo:

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

payments ignitioncompo:

• other
• wallet: Apple-pay
• credit card: Mastercard

seller ignitioncompo:

• rating: 99.7%
• # reviews: 835

offer ignitioncompo:

• quantity: 1
• sold: 0
• availability: In Stock
• options: Ship-to-home
• started: June 5, 2026
• best offers: True

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