5-Pin AC CDI, Ignition Coil, Solenoid Relay & 4-Pin Regulator for 50cc-125cc ATV & Dirt Bike

Product Overview

Complete electrical overhaul kit for 50cc–125cc horizontal engines. Replaces key ignition and charging components to restore reliable starting, smooth running, and stable power output.

Fitment (Vehicle Compatibility)

Category	Details
Engine Type	50cc / 70cc / 90cc / 110cc / 125cc Horizontal Engines
Vehicle Type	ATV, Quad, Dirt Bike, Pit Bike, Go Kart
Common Brands	TaoTao, Buyang, Kazuma, Sunl, Roketa, SSR, Coolsport
Not Compatible	GY6 engines, CG vertical engines

Specifications

Component	Specification
CDI Type	5-Pin AC CDI
CDI Size	66 × 38 × 24 mm
Ignition Coil Lead Length	480 mm / 18.9"
Ignition Coil Pitch	19 mm / 0.75"
Voltage Regulator	4-Pin Regulator Rectifier
Regulator Size	67 × 34.5 × 21 mm
Starter Relay	Heavy-duty Solenoid Relay
Engine Type	4-Stroke Horizontal
Installation	Plug & Play

What’s Included

Qty	Item
1	5-Pin AC CDI Box
1	High-Tension Ignition Coil
1	4-Pin Voltage Regulator Rectifier
1	Starter Solenoid Relay

Key Features

• Complete ignition & charging system refresh in one kit
• Restores strong spark and stable voltage output
• Improves starting performance and throttle response
• Heat- and vibration-resistant epoxy-sealed construction
• Designed for direct OEM-style replacement
• Ideal for diagnosing and eliminating electrical issues