Atesilor 10.4mm Spark Plug Wires for Harley-Davidson Big Twin & Softail (2000-2017)
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Description
xPremium ignition wire upgrade for Harley-Davidson
Upgrade your Harley with the Atesilor 10.4mm spark plug wires, designed to fit Harley-Davidson Big Twin families and Softail models from 1999 to 2017. This set blends broad compatibility with durable performance, helping your ignition system deliver a dependable spark when you ride. While results vary by condition, many riders appreciate easier starts and steadier engine response with a fresh wire set.
What’s included and how it’s built
The kit provides two wires to accommodate common routing needs: a tighter 5.71 inch lead and a longer 17.72 inch lead. Each wire concludes with a robust 10.4mm rubber end to maintain a solid contact under vibration and heat.
- Replacement component number DYNA-409BK; includes 5.71" and 17.72" wires with a 10.4mm rubber end
- Broad compatibility: fits Harley-Davidson Big Twin Dyna Super Glide/Wide Glide/Low Rider (2000–2017) and Softail Springer/Slim/Deluxe/Deuce (1999–2017)
- Durable construction: rubber insulation withstands high temperatures while preserving conductivity
- Ignition role: converts low-voltage battery energy into a high-voltage spark to ignite fuel
- Replacement guidance: worn wires can reduce spark energy and starting reliability; swapping in a fresh set can help
Why riders consider this upgrade
These wires are built to perform under heat, vibration, and road conditions. The dual-length option supports flexible routing, helping prevent excessive bends that can stress conductors. While not a guarantee, many riders report smoother starts and more consistent firing with new wires.
Installation tips
Make sure the engine is cool before installation. Route wires away from hot exhaust components and moving parts, and ensure a secure boot contact. If uncertain, seek professional installation for precise fit and reliable connections.
FAQ
Q: Which Harley models is this ignition wire kit compatible with?
A: Compatible with Harley-Davidson Big Twin Dyna, Wide Glide, Low Rider (2000–2017) and Softail Springer/Slim/Deluxe/Deuce (1999–2017).
Q: What’s included in the kit and what benefits does it offer?
A: Includes 5.71" and 17.72" wires with a 10.4mm rubber end; designed for temperature resilience and stable current transmission.
Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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