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Suzuki GSX-R600 GSX-R750 GSX-R1000 5 Pin Voltage Regulator Rectifier | Replaces 32800-33E21
Suzuki GSX-R600 GSX-R750 GSX-R1000 5 Pin Voltage Regulator Rectifier | Replaces 32800-33E21
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Product Overview
Restore stable charging performance with this 5 pin voltage regulator rectifier, designed for selected Suzuki GSX-R sportbike applications. This regulator family is most reliably matched to GSX-R600 2001–2005, GSX-R750 1998–2005, and GSX-R1000 2001–2004.
Built to replace OEM 32800-33E21, this unit helps solve common issues such as battery not charging, unstable voltage, dim or flickering lights, weak electrical output, and intermittent charging failure. It is designed to dissipate excess voltage, improve charging capability, and help prevent battery overcharging. Manufactured for dependable aftermarket replacement use, this regulator rectifier is intended to provide stable output, reliable charging performance, and long service life.
Product Compatibility
| Brand | Model | Engine / HP / CC | Year Range | Notes |
|---|---|---|---|---|
| Suzuki | GSX-R600 | 600cc | 2001–2005 | Verify connector style and original part before purchase |
| Suzuki | GSX-R750 | 750cc | 1998–2005 | Verify connector style and original part before purchase |
| Suzuki | GSX-R1000 | 1000cc | 2001–2004 | Verify connector style and original part before purchase |
OEM Cross Reference:
32800-33E21, 32800-33E20, 32800-33E10
Specifications
| Specification | Details |
|---|---|
| Part Type | Voltage Regulator Rectifier |
| Configuration | 5 Pin |
| Length | 58 mm / 2.28" |
| Width | 68 mm / 2.68" |
| Mounting Hole Distance | 49 mm / 1.92" |
| Fitment Method | Match by OEM number, connector style, and original part layout |
| Material | High-quality replacement construction |
| Function | Helps dissipate excess voltage and improve charging capability |
| Installation | Direct replacement |
| Condition | 100% New Aftermarket |
Key Features
- 5 Pin Design – Built for selected GSX-R charging-system applications
- Stable Voltage Regulation – Helps maintain dependable battery charging and electrical output
- Overcharge Protection – Helps dissipate excess voltage and reduce battery overcharging risk
- Direct Replacement Fit – Designed for straightforward installation on correctly matched applications
- Durable Construction – Built for reliable long-term street-bike use
Common Problems This Part Can Help Solve
This product may help address issues such as:
- Battery not charging
- Overcharging or unstable voltage
- Dim or flickering lights
- Weak electrical output
- Intermittent charging failure
- Regulator overheating or voltage-control issues
Package Includes
1 × 5 Pin Voltage Regulator Rectifier
Fitment Note
Please confirm your OEM part number, connector style, mounting-hole spacing, and original part layout before ordering.
If you are unsure about compatibility, contact us with your model, year, OEM number, and original part photos before purchase.
Installation Note
Professional installation is recommended.
Before installation, inspect related components such as the battery, stator, wiring harness, connectors, and charging system to avoid repeat failure caused by another faulty part.
Why Choose This Replacement
A failing regulator rectifier can lead to poor charging performance, unstable voltage, dim lighting, and unreliable electrical operation. Replacing it with a properly matched unit helps restore dependable charging-system performance and keeps your GSX-R ready for regular riding.
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Fitment FAQ
Will this part fit my specific model and year?
This voltage regulator rectifier is intended for Engine / HP / CC. Listed year information includes 2001–2005, 1998–2005, 2001–2004, 2001, 2005. It is best matched to original part number(s) 32800-33E21, 32800-33E20, 32800-33E10. Key physical/spec details from the product data include 5 Pin, Length: 58 mm / 2.28", Width: 68 mm / 2.68". Use the compatibility table and product photos together before ordering.
Do I need to match the OEM part number?
Yes. Match your original part number to 32800-33E21, 32800-33E20, 32800-33E10 before purchase. For this voltage regulator rectifier, also compare the OEM number, plug shape, pin count, mounting-hole distance, heat-sink style, and AC/DC charging-system type. This is especially important for Suzuki R600/R750/R1000 models because similar model names can use different parts by year or trim.
What models or situations does this part not fit?
Do not order this voltage regulator rectifier for machines outside the listed compatibility, or for units with different pin counts, plug shapes, AC/DC system types, or mounting-hole spacing. If your original part number does not cross-reference with 32800-33E21, 32800-33E20, 32800-33E10, treat the fitment as unconfirmed. Model years outside 2001–2005, 1998–2005, 2001–2004, 2001, 2005 should be verified separately. Do not rely only on the model name or engine size.
What should I check before ordering?
Before ordering, compare your original part with the photos and check the OEM number, plug shape, pin count, mounting-hole distance, heat-sink style, and AC/DC charging-system type. Confirm OEM/cross-reference number(s): 32800-33E21, 32800-33E20, 32800-33E10. Recheck listed specs such as 5 Pin, Length: 58 mm / 2.28", Width: 68 mm / 2.68". If any connector, mounting point, size, or year detail is different, confirm fitment before installation.