Thundermax Electronic Harness Controller
Thundermax Electronic Harness Controller
Available in stock (4)
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Estimated delivery: Feb 03 - Feb 07
About this product
About this product
Upgrade your custom motorcycle's electrical system with the Thundermax Electronic Harness Controller. This compact and versatile unit simplifies wiring and enhances functionality, ensuring reliable performance in any environment.
Description
The Thundermax Electronic Harness Controller streamlines your motorcycle's wiring system by consolidating multiple functions into a single, easy-to-install package. It allows a dual-filament bulb to function as a tail light, brake light, and turn signal, eliminating the need for a separate center brake light. The included ribbon cable makes it easy to integrate generic indicator lights, providing a clean and customized look. This controller performs all fuse, relay, and signal-canceling functions, reducing complexity and improving reliability. Weather-resistant connections ensure trouble-free operation even in the most challenging conditions. Its trim-to-fit harnesses make installation a breeze on nearly any custom bike, and its compact design allows for easy concealment.
Features & highlights
- Simplifies custom motorcycle wiring by consolidating multiple functions.
- Enables dual-filament bulbs to operate as tail, brake, and turn signals.
- Integrates generic indicator lights with the included ribbon cable.
- Performs all fuse, relay, and signal-canceling functions in a single unit.
- Features weather-resistant connections for reliable performance in extreme conditions.
- Trim-to-fit harnesses allow for easy installation on most custom motorcycles.
- Compact design for easy concealment on custom builds.
Technical specifications
- Brand: Thundermax
- Product Name: Wiring Harness
- Type: Turn Signal
Important to know
No specific requirements or limitations are listed for this product.
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
THUNDERMAX
EA4250D-C
Wiring Harness
Turn Signal
Each


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.

