Sumax Custom-fit Spark Plug Wire Kit
Sumax Custom-fit Spark Plug Wire Kit
Available in stock (15)
About this product
About this product
Upgrade your motorcycle's ignition system with the Sumax Custom-Fit Spark Plug Wire Kit. These high-performance wires deliver superior conductivity and heat resistance, ensuring optimal engine performance and longevity. Available in distinctive, highly visible colors, these precut wires simplify installation and add a custom look to your bike.
Description
The Sumax Custom-Fit Spark Plug Wire Kit provides a significant upgrade over standard carbon-core wires. Featuring a Spiro-Pro core, these 8 mm wires offer up to 10 times the conductivity, resulting in a stronger, more consistent spark. The extra-high-temperature silicone boots and wires provide exceptional protection, withstanding temperatures up to 600°F, ensuring reliability under extreme conditions. Their low resistance helps them run cooler, significantly extending their lifespan—lasting three to four times longer than conventional carbon-core wires. Precut to the correct lengths (13.5", 17", 18", and 30.5"), and with plug/coil boots and terminals already installed, installation is a breeze. These wires are compatible with both electronic and point-type ignitions, making them a versatile choice for a wide range of motorcycles. Proudly made in the USA, these wires are engineered for performance and durability.
Features & highlights
- Enhanced Conductivity: Spiro-Pro core delivers up to 10 times the conductivity of standard carbon-core wires, improving spark and engine performance.
- Extreme Heat Resistance: High-temperature silicone boots and wires protect up to 600°F, ensuring reliability under demanding conditions.
- Extended Lifespan: Low resistance design runs cooler, lasting three to four times longer than carbon-core wires, saving you money on replacements.
- Easy Installation: Precut wires with pre-installed boots and terminals simplify installation, getting you back on the road faster.
- Versatile Compatibility: Designed for electronic ignitions and also compatible with point-type systems, offering broad application.
- Custom Look: Available in distinctive, highly visible colors to personalize your bike's appearance.
- Made in the USA: Ensures high-quality materials and manufacturing for long-lasting performance.
Technical specifications
- Brand: Sumax
- Product Name: Wire
- Type: Spark Plug
- Color/Finish: Black
- Wire Diameter: 8 mm
- Connector Angle: 90°, 135°
- Wire Lengths: 13.5", 17", 18", 30.5" (34.5 cm, 43 cm, 45.5 cm, 77.5 cm)
- Units: 4 Pack
Important to know
Ensure proper fitment for your specific motorcycle make and model before installation. Professional installation is recommended for optimal performance.
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
S20038
Wire
8 mm
34,5 cm (13-1/2"), 43 cm (17"), 45,5 cm (18"), 77,5 cm (30-1/2")
90°, 135°
Spark Plug
4 Pack


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.

