Motoforti 2-Pack 10.4mm & 10mm Spark Plug Wire Kit for Harley Big Twin FXD 2000-2017, Softail 1999-2017 – DYNA-409RD
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Description
xOverview
Motoforti presents a purpose-built spark plug wire kit designed for Harley-Davidson big twins, offering a practical upgrade for riders who value ignition reliability and a refreshed look. This 2-pack features 10.4mm and 10mm rubber ends, along with both 90-degree and straight boots to accommodate flexible routing. The entire jacket, insulation, and core use silicone to withstand heat and harsh riding conditions, helping preserve the spark path as you ride.
The kit is compatible with classic factory layouts for Harley-Davidson Dyna FXD (2000-2017) and Softail (1999-2017). Before you buy, please confirm your bike’s year and spark plug size to ensure a seamless fit. Designed as a wire replacement or relocation upgrade, it suits a range of builds from bobbers to cafe racers, delivering a clean, cohesive look while preserving ignition behavior.
Key Benefits
- OE-identified DYNA-409RD compatibility supports street and race usage
- Heat-resistant silicone jacket and insulated core for durability in hot riding conditions
- Two pre-crimped wires with versatile boots for easier installation
- Includes 10.4mm and 10mm ends to fit different spark plug sizes and routing paths
What to Expect in Use
With a robust silicone jacket and secure boots, the wires are designed to maintain a clean ignition path even under demanding riding conditions. While improvements can vary by bike, riders may notice a refreshed look on their Harley, with potential benefits such as steadier ignition behavior and more consistent performance under load. The kit is built to be a practical upgrade that harmonizes with both factory layouts and custom builds.
Installation Tips
- Follow the original wiring path or refer to reputable video guides if you are unsure about the replacement process
- Ensure secure connections at each boot and verify seating before riding
FAQ
Q: Which Harley models are compatible with this Motoforti spark plug wire kit?
A: Fits Harley-Davidson Dyna FXD (2000-2017) and Softail (1999-2017); verify spark plug size and year before purchase.
Q: What is included and how do I install?
A: Includes 2 pre-crimped wires with 10.4mm and 10mm ends and boots; install using the factory method or consult a reliable replacement guide.
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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