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12V 4-Pin Voltage Regulator Rectifier for 50cc–125cc ATV Scooter Go Kart
12V 4-Pin Voltage Regulator Rectifier for 50cc–125cc ATV Scooter Go Kart
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Product Overview
Replace a damaged, overheated, or unstable voltage regulator rectifier with this 12V 4-pin replacement unit, designed for select 50cc, 70cc, 90cc, 110cc, and 125cc ATVs, scooters, go-karts, quads, mopeds, 4-wheelers, dune buggies, sandrails, and small powersports vehicles.
The voltage regulator rectifier helps convert and regulate charging system output before power reaches the battery and electrical components. A faulty regulator rectifier may cause weak charging, battery overcharging, blown bulbs, dim lights, unstable voltage, repeated battery failure, or electrical system problems.
This replacement regulator rectifier uses a 4-pin male plug and supports 12V electrical systems. Please compare your original regulator’s plug shape, pin count, wiring layout, mounting style, and charging system type before ordering.
Product Compatibility
| Vehicle Type / Platform | Engine Range | Fitment Notes |
|---|---|---|
| ATV / Quad / 4-Wheeler | 50cc / 70cc / 90cc / 110cc / 125cc | Fits select small Chinese-style powersports applications using a matching 4-pin regulator |
| Scooter / Moped | 50cc–125cc | Common fitment for matching 12V 4-pin charging systems |
| Go-Kart / Buggy | 50cc–125cc | Verify plug shape, pin layout, and charging system before ordering |
| Dune Buggy / Sandrail | Small-displacement applications | Fitment depends on original regulator and wiring harness |
| GY6 / QMB139-Style Applications | Select 50cc–150cc applications | Possible fitment only if the 4-pin plug and wiring layout match |
| TaoTao / Roketa / Jonway-Style Vehicles | Select models | Match by original regulator, not brand name alone |
| SunL / Kazuma / Coolster-Style Vehicles | Select models | Confirm voltage, connector shape, and pin layout before purchase |
Important Fitment Note:
This is a universal-style replacement regulator rectifier for matching 12V 4-pin systems. Fitment is not guaranteed by engine size or brand name alone. Please compare the original part’s connector shape, male/female plug style, pin count, pin arrangement, wire colors, mounting holes, and electrical system type before ordering.
Specifications
| Specification | Details |
| Product Type | Voltage Regulator Rectifier |
| Voltage | 12V |
| Connector Type | 4-Pin Male Plug |
| Pin Count | 4 Pin |
| Compatible Engine Range | Select 50cc / 70cc / 90cc / 110cc / 125cc applications |
| Possible Extended Fitment | Select 50cc–150cc GY6 / QMB139-style applications, verify before purchase |
| Compatible Vehicle Types | ATV, Scooter, Go-Kart, Quad, Moped, 4-Wheeler, Dune Buggy, Sandrail |
| Common Compatible Brands | TaoTao, Roketa, Jonway, SunL, Kazuma, Coolster-style vehicles |
| Function | Voltage Regulation and Rectification |
| Fitment Type | Replacement, match by plug and wiring layout |
Key Features
- 12V 4-pin voltage regulator rectifier for select small powersports vehicles
- Commonly used on 50cc, 70cc, 90cc, 110cc, and 125cc ATV, scooter, go-kart, quad, and moped applications
- Helps regulate charging voltage for more stable electrical output
- Helps protect the battery, bulbs, and electrical components from voltage fluctuation
- 4-pin male plug design for matching wiring harnesses
- Useful replacement for damaged, overheated, or unstable regulator rectifiers
- Direct replacement style, but plug shape, pin layout, and charging system type must be checked before installation
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FAQ sur l'ajustement
Cette pièce conviendra-t-elle à mon modèle et à mon année spécifiques ?
This regulator rectifier may fit select 50cc, 70cc, 90cc, 110cc, and 125cc ATVs, scooters, go-karts, quads, mopeds, 4-wheelers, dune buggies, sandrails, and similar small powersports vehicles using a matching 12V 4-pin male plug regulator. Please compare your original plug shape, pin layout, wire count, mounting style, and charging system before ordering.
Dois-je correspondre au numéro de pièce OEM ?
No confirmed OEM part number is provided for this product. For universal-style voltage regulator rectifiers, matching the plug and wiring layout is the safest method. Please confirm your original unit is 12V, uses a 4-pin connector, and has the same connector shape and pin arrangement.
À quels modèles ou situations cette pièce ne convient-elle pas ?
This part does not fit vehicles that use a different voltage system, different plug shape, different pin count, different connector gender, different wiring layout, or a different regulator rectifier design. It is also not a replacement for the stator, CDI, ignition coil, battery, starter relay, fuse box, or complete wiring harness.
Que dois-je vérifier avant de commander ?
Before ordering, please check your vehicle type, engine size, original regulator plug shape, pin count, connector gender, wire colors, mounting style, voltage system, and charging system type. For best fitment, compare the product photos and specifications with your original regulator rectifier before purchase.