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Voltage Regulator Rectifier for Yamaha XT125R XT125X YBR125 125cc
Voltage Regulator Rectifier for Yamaha XT125R XT125X YBR125 125cc
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Product Overview
Replace a damaged, overheated, or unstable voltage regulator rectifier with this replacement unit, designed for select Yamaha XT125R, XT125X, XTX125, XTR125, YBR125, YBR125E, and YBR125ED 125cc motorcycle applications.
The voltage regulator rectifier is an important part of the motorcycle charging system. It helps regulate charging voltage before power reaches the battery and electrical components. A faulty regulator rectifier may cause weak charging, battery overcharging, repeated battery failure, dim lights, blown bulbs, unstable voltage, or charging system problems.
This replacement regulator rectifier measures approximately 85mm long, 56mm wide, and 25mm high. Please compare your original regulator’s plug shape, pin count, wire layout, mounting style, part number, and overall size before ordering.
Product Compatibility
| Make | Model | Year Range | Fitment Notes |
|---|---|---|---|
| Yamaha | XT125R | 2007–2008 | Common voltage regulator rectifier fitment; verify original plug and size |
| Yamaha | XT125X | 2007–2008 | Match by connector shape, pin layout, and mounting points |
| Yamaha | XTX125 | Select applications | Verify original regulator before ordering |
| Yamaha | XTR125 | Select applications | Confirm plug style and physical dimensions |
| Yamaha | YBR125 | Select 2004–2016 applications | Common related fitment; match by original regulator |
| Yamaha | YBR125ED | 2005–2006 | Listed supplier fitment; confirm original part and connector |
| Yamaha | YBR125E / YBR125EGS / YBR125ESD | Select applications | Possible related fitment only if original regulator matches |
| Yamaha | XTZ125E / YB125 | Select applications | Possible related fitment; verify OEM number, plug, and size |
Important Fitment Note:
This part is not selected by model name alone. Yamaha XT125R, XT125X, XTX125, XTR125, YBR125, YB125, and XTZ125E models may use different electrical components depending on year, market, wiring harness, connector design, and charging system type. Please confirm your original regulator rectifier matches the plug shape, pin count, wire layout, body size, and mounting style before ordering.
Specifications
| Specification | Details |
| Product Type | Voltage Regulator Rectifier |
| Compatible Brand | Yamaha |
| Main Compatible Models | XT125R, XT125X, XTX125, XTR125, YBR125 |
| Voltage System | 12V Motorcycle Charging System |
| Length | 85mm / 3.3" |
| Width | 56mm / 2.2" |
| Height | 25mm / 0.98" |
| Common Regulator References | 5VL-H1960-00 / 2D0-H1960-00, verify before purchase |
| Supplier-Listed Reference | 3D9-H5540-01, verify carefully |
| Application | Motorcycle Charging System |
| Fitment Type | Replacement, match by connector, size, and wiring layout |
Key Features
- Replacement voltage regulator rectifier for select Yamaha 125cc motorcycle applications
- Suitable for matching XT125R, XT125X, XTX125, XTR125, and YBR125 charging systems
- Helps regulate charging voltage for more stable electrical output
- Helps reduce weak charging, overcharging, dim lights, blown bulbs, and battery drain issues
- Compact heat-sink body helps dissipate excess heat during operation
- Designed for reliable charging system performance when the original plug and wiring match
- Direct replacement style, but original connector, pin layout, body size, and part number must be checked before installation
OEM Cross Reference
| OEM / Reference Number | Notes |
| 5VL-H1960-00 | Common Yamaha voltage regulator rectifier reference for YBR125 / XT125-style applications |
| 5VLH196000 | Compact format of 5VL-H1960-00 |
| 2D0-H1960-00 | Common related Yamaha voltage regulator rectifier reference |
| 2D0H196000 | Compact format of 2D0-H1960-00 |
| 3D9-H5540-01 | Supplier-listed reference; often shown as a CDI / ignition unit reference, so verify before purchase |
| 3D9H554001 | Compact format of 3D9-H5540-01 |
| 3D9-H5540-00 | Related supplier-listed reference; verify carefully before purchase |
| 3D9H554000 | Compact format of 3D9-H5540-00 |
Please use the OEM/reference number together with physical dimensions and connector layout for fitment confirmation. If your original part has a different plug shape, different pin count, different wire layout, different mounting style, or different electrical function, this part may not fit.
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Preguntas frecuentes sobre compatibilidad
¿Esta pieza es compatible con mi modelo y año específicos?
This regulator rectifier may fit select Yamaha XT125R, XT125X, XTX125, XTR125, YBR125, YBR125E, and YBR125ED applications when the original part matches the connector, body size, and charging system layout. Please compare your original regulator’s plug shape, pin count, wire layout, length, width, height, and mounting style before ordering.
¿Necesito que coincida el número de pieza OEM?
Yes, matching the OEM or reference number is strongly recommended. Common voltage regulator rectifier references for similar Yamaha 125cc applications include 5VL-H1960-00 and 2D0-H1960-00. The supplier-listed 3D9-H5540-01 should be verified carefully because it is often associated with CDI / ignition units rather than standard regulator rectifiers.
¿Qué modelos o situaciones no son compatibles con esta pieza?
This part does not fit Yamaha XT125R, XT125X, YBR125, scooters, ATVs, or motorcycles that use a different connector, different pin count, different wiring layout, different regulator body size, different mounting style, or a CDI / ignition unit instead of a voltage regulator rectifier. It is also not a replacement for the stator, CDI, ignition coil, battery, starter relay, main fuse, or complete wiring harness.
¿Qué debo verificar antes de hacer un pedido?
Before ordering, please check your motorcycle’s make, model, year, original part number, plug shape, connector gender, pin count, wire layout, mounting style, body length, width, height, and charging system type. For best fitment, compare the product photos and specifications with your original regulator rectifier before purchase.