OTOHANS AUTOMOTIVE ATV Wiring Harness Kit with CDI, Solenoid, Regulator & Spark Plug - 50cc-125cc (Black)

Upgrade your ATV’s electrical setup with the OTOHANS AUTOMOTIVE Full Wiring Harness Kit. Engineered for 4-stroke engines in the 50cc to 125cc range, this comprehensive package blends a durable wiring harness with essential components to support reliable starting, charging, and electrical operation. It’s designed to simplify maintenance by offering a single, cohesive replacement solution for compatible models, helping riders stay on the trail with greater confidence.

The kit combines a complete wiring harness with critical modules and switches: CDI (5-pin), solenoid relay, rectifier (voltage regulator), waterproof ignition switch with two keys, a start button plug, ignition coil with lead, and a spark plug. These parts are selected for compatibility with common platforms such as Kawasaki KLX, Coolster, Go Kart, and other 4-wheelers and dirt bikes, making it a practical option for riders seeking a reliable, ready-to-install assembly.

What you may notice when you use this kit

Potential benefits include smoother ignition sequences, steadier charging, and a more straightforward maintenance routine. The waterproof ignition switch and robust connectors are aimed at withstanding weather exposure, so you can ride through varying conditions with less concern about moisture or dust affecting performance. Because the kit consolidates multiple components into one package, it can shorten replacement time and reduce the need to source individual parts separately.

Important installation notes: please refer to the wiring diagram before connecting any parts to ensure correct wiring. This kit is not compatible with GY6-design engine layouts. If you’re unsure about the wiring or how the parts should connect on your specific model, consulting a qualified mechanic is advised to ensure precise installation and safe operation. For questions about model compatibility or setup, the seller is available to provide guidance.

Real-world scenarios where this kit may help include restoring or upgrading an older ATV, equipping a dirt pit bike with a dependable electrical system, or having a complete spare on hand to minimize downtime during maintenance. While outcomes vary by model and condition, having a cohesive set of components in one package can support a smoother upgrade path and a more integrated electrical system overall.

What’s included

• 1x ATV wiring harness
• 1x CDI (5-pin)
• 1x solenoid relay
• 1x rectifier (voltage regulator)
• 1x ignition switch (2 keys, waterproof)
• 1x start button plug
• 1x ignition coil with lead
• 1x spark plug

Why choose this kit

• All-in-one replacement solution for 50cc–125cc 4-stroke ATVs and dirt bikes
• Includes core components for reliable ignition and charging
• Weather-ready ignition switch enhances durability in outdoor riding conditions
• Helps streamline maintenance by avoiding multiple part hunts