HOOUP ATV Wiring Harness Kit for 50-125cc Chinese Quads — Complete Stator, CDI, Coil & Regulator

HOOUP's all-in-one wiring harness kit supplies the stator, CDI, ignition coil, regulator/rectifier and related electrical parts needed to restore or upgrade the charging and ignition system on 50–125cc Chinese four-wheelers.

This kit is engineered for common small-displacement Chinese ATVs and quads—covering TaoTao, Coolster, Sunl, Kazuma and many peer brands—and groups the most frequently replaced electrical components into a single purchase. Each part is selected to match OEM-style connectors and mounting points so you can swap failed components quickly during repairs or preventive maintenance. An installation diagram is provided with the product images to guide correct wiring and placement.

What parts are included and why they matter?

The kit contains the core components that control charging and ignition, so you replace multiple failure points at once instead of diagnosing them separately. This is useful when symptoms point to electrical system-wide issues like no spark or battery not charging.

• ATV wire harness — centralizes connections and restores reliable routing.
• Stator (magneto generator) — generates AC power for charging and lights.
• 5-pin AC CDI box — times spark delivery to the plug.
• Ignition coil with lead and spark plug — produces the high-voltage spark.
• Voltage regulator/rectifier (4-pin) — converts AC to DC and stabilizes voltage.
• Starter solenoid relay, multifunction switch, ignition key switch, fuse, cable ties — installation-ready accessories.

Which ATVs and engines is this compatible with?

The kit fits a broad range of Chinese-made youth and utility ATVs and 4-stroke engines from 50cc up to 125cc. It’s intended for models that share standard connector types and mounting footprints rather than brand-specific proprietary systems.

• Common TaoTao models: ATA-110 series, T-Force/T125 and Boulder B1.
• Coolster models: 3050 series and 110–125cc variants.
• Other supported brands: Sunl, Xpro, Kazuma, Vitacci, ICEbear and similar Roketa/Baja clones.
• Engine sizes: 50cc, 70cc, 90cc, 110cc, 125cc 4-stroke engines.

How are the components built and what performance traits do they offer?

Parts in the kit are manufactured with durability and heat management in mind, using materials aimed at reliable, long-term operation in small off-road vehicles. While not a performance upgrade, the parts restore designed function and protect sensitive electronics.

• Stators wound in copper or nickel alloy for efficient conductivity and heat resistance.
• CDI boxes and rectifiers use impact-resistant plastics and aluminum housings for cooling and corrosion protection.
• Regulator/rectifier includes overvoltage protection to prevent battery or electronics damage.
• Includes cable ties and a fuse for tidy, safer installations.

How difficult is installation and what help is provided?

Basic mechanical and electrical skills are required: removing body panels, tracing wiring diagrams and securing connectors. The package includes an installation diagram in the product images—follow it and double-check wire colors and connector shapes before powering up.

• Installation diagram included in photos for reference.
• Verify connector fit and mounting points before final assembly.
• Use the included fuse and cable ties to protect connections and routing.
• When unsure, seek a qualified small-engine technician to avoid damage.

Who is this for: This HOOUP kit is aimed at owners and mechanics of youth and budget Chinese ATVs who need a comprehensive electrical repair pack. It’s suitable for workshop owners, DIY riders comfortable with wiring and anyone replacing multiple aging electrical parts at once to restore charging, ignition and starting reliability on 50–125cc four-stroke quads.