Sumax 409 Pro Race Spark Plug Wire Kit
Sumax 409 Pro Race Spark Plug Wire Kit
Available in stock (6)
About this product
About this product
Upgrade your ignition system with the Sumax 409 Pro Race Custom-Fit Spark Plug Wire Kit. These high-performance spark plug wires deliver superior conductivity and heat resistance, ensuring optimal engine performance and longevity. Made in the USA with premium materials, Sumax spark plug wires are a top choice for enthusiasts and professionals alike.
Description
The Sumax 409 Pro Race spark plug wires are designed for maximum performance and durability. Featuring a Spiro-Pro core, these wires offer up to 10 times the conductivity of standard carbon-core wires, resulting in a stronger, more consistent spark. The extra-high-temperature silicone boots and wires provide exceptional protection up to 600°F, preventing heat-related failures. With low resistance, these wires run cooler and last three to four times longer than conventional carbon-core wires. The precut design and pre-installed plug/coil boots and terminals ensure a hassle-free, custom fit. Compatible with both electronic and point-type ignitions, these wires are a versatile upgrade for any motorcycle.
Features & highlights
- Spiro-Pro core provides up to 10 times the conductivity of standard carbon-core wires for maximum spark energy.
- High-temperature silicone boots and wires offer protection up to 600°F, preventing heat damage.
- Low resistance design ensures cooler operation and extends wire lifespan three to four times longer than carbon-core wires.
- Precut wires with pre-installed boots and terminals for a perfect, custom-fit installation.
- Vibrant, highly visible color options add a custom look to your engine.
- Compatible with both electronic and point-type ignition systems.
- Proudly made in the USA, ensuring top-quality materials and construction.
Technical specifications
- Brand: Sumax
- Product Name: Wire
- Type: Spark Plug
- Color/Finish: Blue
- Wire Diameter: 10.4 mm
- Wire Length: 48.5 cm (19"), 94 cm (37")
Important to know
Ensure proper fitment by verifying wire lengths before installation. Professional installation is recommended.
Shipping & Return
Shipping & Return
Free shipping to GLS parcel shop parcel box for purchases over DKK 1,000.
GLS home delivery costs DKK 59.
We do our best to ship your order as quickly as possible. All orders are generally packed within 24 hours on weekdays.
There is a 14-day return policy. Read more
Parts Denmark Info
Parts Denmark Info
Parts Denmark is a new webshop based in Denmark. We have a physical location you can visit (No showroom yet), and we have both email and phone support in our opening hours.
Our company info is:
Parts Denmark ApS
VAT: DK45974758
Dam Holme 11
3660 Stenløse, Denmark
hello@partsdenmark.com
+45 222 333 29
Best regards,
William Svendsen & Martin Høyer (Owners)
Specifications
SUMAX
S40634
Wire
10.4 mm
48,5 cm (19"), 94 cm (37")
Spark Plug
Pair


Who is behind Parts Denmark
Martin and William are the duo behind Parts Denmark — an unlikely but awesome combo of a tech-savvy young IT wizard and a seasoned motorcycle guru who’s seen (and fixed) it all. Together, we’ve built a team with big ambitions, plenty of passion, and a shared mission to create great things — side-by-side with you.

