This is an original OEM Kokusan Denki 12V 5-wire voltage regulator rectifier assembly, manufactured for early-generation Suzuki GS-series motorcycles. Built with a rugged finned cast-aluminum heat sink shell, this unit is designed to dissipate heat while regulating charging voltage from the stator to the battery for stable vintage electrical system performance. Specification Summary Brand: Kokusan Denki / Suzuki OEM Part Type: Voltage Regulator Rectifier Voltage: 12V Wire Count: 5-Wire Layout Harness Configuration: Three yellow stator phase wires, one red battery positive wire, and one black system ground wire Body Style: Finned cast-aluminum heat sink housing Comprehensive Model Compatibility Suzuki GS550 Series 1977 Suzuki GS550 1978 Suzuki GS550 / GS550E 1979 Suzuki GS550 / GS550E / GS550L Cross-Model Fitment Also compatible with select early GS charging systems using the same 5-wire electrical layout: 1977–1979 Suzuki GS750 Base / E / L 1979 Suzuki GS1000 Base / E / L / S
Please verify compatibility with your specific motorcycle model before purchasing.
Cleaning Status
partially_cleaned
Cleaning Notes
Used anti rust
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Estimated delivery: 2-5 business days
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Yes, all parts with OEM numbers are genuine manufacturer parts. Check the specifications tab for the OEM number.
We offer a 30-day return policy. Items must be in original condition. See the Shipping tab for complete details.
Yes, we ship to most countries worldwide. Shipping costs and delivery times vary by location.
Parts are sold separately. We recommend professional installation for safety and warranty purposes.
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$34.75
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$34.75
