1. Electrical & Ignition Components Offered
  2. sku: 4568752095899653
  3. HARLEY DAVIDSON SCREAMIN EAGLE 31785-04

HARLEY-DAVIDSON / SCREAMIN EAGLE 31785-04 Ignition Mod Mod.

fits make: Harley.

31785-04 Harley-davidson / Screamin Eagle Ignition Mod. - #

( Brand: Harley-davidson / Screamin Eagle ), ( Part Type: Ignition ), ( Manufacturer Part Number: 31785-04 )

Review HARLEY DAVIDSON / SCREAMIN EAGLE Ignition Mod.

The Harley-Davidson Screamin' Eagle 31785-04 Ignition Module is an essential upgrade for your Harley-Davidson motorcycle's ignition system. This high-performance module is designed to deliver improved ignition reliability and enhanced engine performance.

The ignition module is part of the Harley-Davidson Screamin' Eagle Performance Parts line, which is engineered to provide superior power and durability. This specific module is a direct replacement for the original ignition module on select Harley-Davidson Touring models, including the Electra Glide Ultra Limited, Road Glide Ultra, Street Glide Ultra, and Road King models produced between 2006 and 2013.

The Harley-Davidson 31785-04 Ignition Module features a high-energy, digitally controlled ignition system. It uses a microprocessor to control the ignition system, ensuring precise and consistent ignition timing. The result is improved combustion efficiency, increased power output, and smoother engine operation.

This module also includes a rev limiter function, which limits the engine RPM to a preset value. This feature can help protect your engine from damage caused by excessive revving. Additionally, the module includes a diagnostic function that can help you identify and troubleshoot any issues with your ignition system.

The installation process for the Harley-Davidson Screamin' Eagle 31785-04 Ignition Module is relatively straightforward. It is designed to be a direct replacement for the original ignition module, so no major modifications are required. The module comes with a wiring harness that makes the installation process even easier. However, it is always recommended to have the installation performed by a professional Harley-Davidson technician to ensure proper installation and optimal performance.

In summary, the Harley-Davidson Screamin' Eagle 31785-04 Ignition Module is a high-performance upgrade for your Harley-Davidson motorcycle's ignition system. It delivers improved ignition reliability, enhanced engine performance, and added features such as a rev limiter and diagnostic function. The installation process is straightforward, making it a worthwhile investment for any Harley-Davidson enthusiast looking to optimize their motorcycle's performance.

The Harley-Davidson Screamin' Eagle 31785-04 Ignition Module is an aftermarket performance part designed to provide improved ignition system performance for certain Harley-Davidson motorcycles. Here are some potential pros and cons of buying this ignition module:

Pros:

1. Enhanced Engine Performance: The Screamin' Eagle Ignition Module is designed to deliver a more efficient and powerful ignition system. This can lead to improved engine performance, increased horsepower, and better fuel efficiency.

2. Improved Fuel Economy: By providing a more efficient ignition system, the Screamin' Eagle Ignition Module can help improve fuel economy. This can save riders money on fuel costs over time.

3. Smoother Riding Experience: The improved ignition system can lead to a smoother and more responsive riding experience. This can make the motorcycle more enjoyable to ride, especially during acceleration and cruising.

4. Longer Spark Duration: The Screamin' Eagle Ignition Module provides a longer spark duration, which can help improve combustion efficiency and reduce misfires.

5. Easy Installation: The ignition module is relatively easy to install, with most riders able to do it themselves in a few hours or less. Harley-Davidson provides a detailed installation guide with the product.

Cons:

1. Cost: The Screamin' Eagle Ignition Module is not a cheap upgrade, with a retail price of around $300. This may be a significant investment for some riders, especially those on a budget.

2. Compatibility: The ignition module is only compatible with certain Harley-Davidson motorcycles, specifically those with the Twin Cam 96, 103, and 110 engines. Riders with other engine types should not attempt to install this part.

3. Potential Complications: While most riders report a smooth installation process, there have been reports of complications during installation. These can include issues with the wiring harness, the ignition coil, or the fuel injectors.

4. Risk of Damage: Installing the Screamin' Eagle Ignition Module requires some degree of electrical work, which can carry the risk of damaging the motorcycle if not done correctly. Riders should ensure they have the necessary skills and tools to complete the installation safely.

Conclusion:

The Harley-Davidson Screamin' Eagle 31785-04 Ignition Module is an attractive upgrade for Harley-Davidson riders looking to improve the performance and efficiency of their motorcycle's ignition system. While it comes with some potential drawbacks, such as cost and compatibility issues, the benefits of improved engine performance, fuel economy, and a smoother riding experience can make it a worthwhile investment for many riders.

Recommendation:

If you are a Harley-Davidson rider with a compatible motorcycle and a budget for performance upgrades, the Screamin' Eagle Ignition Module could be an excellent investment to enhance the performance and enjoyment of your motorcycle. However, it is essential to ensure that you have the necessary skills and tools to install it safely and correctly to avoid any potential complications. Additionally, be sure to consult Harley-Davidson's installation guide and seek professional assistance if needed.

part # 3178504 price

  • $249.90

specifications ignitioncompo:

  • for makes: Harley
  • brand: Harley-davidson / Screamin Eagle
  • part type: Ignition
  • manufacturer part number: 31785-04

general ignitioncompo:

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

seller ignitioncompo:

  • rating: 97.4%
  • # reviews: 5131

payments ignitioncompo:

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

returns ignitioncompo:

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

offer ignitioncompo:

  • options: Ship-to-home
  • quantity: 1
  • availability: In Stock
  • sold: 0
  • started: May 29, 2025

shipping ignitioncompo:

  • class: Standard
  • carrier: USPS
  • service: USPS Ground Advantage
  • type: Calculated
  • cost: $0.00
  • transit: 5-11 Days
for makes: harley, part type: ignition,
category: motorcycle parts > motorcycle scooter parts accessories > electrical ignition components, sku: 4568752095899653,

Harley-davidson / Screamin Eagle 31785-04 Is Similar To:

ignitioncompo logo
1 offer $249.90 USD
  • Offer #1: $249.90 price + free delivery = $249.90* total. Part number A and has long been obsolete from HD. Up for sale is a Genuine Harley Davidson Screamin' Eagle 7000 RPM Ignition Module.FREE SHIPPING