⚡ Part Overview: Vulcan V1290 Voltage Regulator
type: Unknown Type
Vendor: CorvairFarmer
Description:
⚡ Part Overview: Vulcan V1290 Voltage Regulator
| Attribute | Detail |
|---|---|
| Part Number | V1290 |
| Brand | Vulcan (Legacy aftermarket electrical components) |
| Component Type | External Voltage Regulator |
| Function | Maintains consistent voltage output from alternator to battery |
| Voltage Range | 13.5V – 14.8V (adjustable or fixed depending on sub-model) |
| Polarity | Negative ground |
| Terminals | Typically 4-terminal (F, I, A, S) or 5-terminal depending on application |
| Mounting Style | Firewall or fender mount — slotted bracket holes |
| Housing Material | Die-cast aluminum or stamped steel with epoxy coating |
| Cooling | Passive — vented housing for heat dissipation |
🚗 Vehicle Applications & Fitment
The V1290 is designed for external-regulated alternator systems, common in 1960s–1980s GM vehicles, and some industrial/agricultural platforms.
✅ Example Fitments
| Make | Models | Years | Engines |
|---|---|---|---|
| Chevrolet | C10, Impala, Nova, Camaro | 1965–1982 | 250 I6, 305/350 V8 |
| GMC | Sierra, Suburban, Vandura | 1967–1983 | 4.1L, 5.0L, 5.7L V8 |
| Pontiac | LeMans, Bonneville, Firebird | 1968–1981 | 301–400 CID V8 |
| Buick | Skylark, Century | 1970–1980 | 231 V6, 350 V8 |
| Oldsmobile | Cutlass, Delta 88 | 1972–1984 | 260–403 CID V8 |
| John Deere | 3020, 4020 Tractors (select models) | 1965–1975 | Inline 6 Diesel |
🔧 Confirm alternator type: Delco-Remy 10DN or 12SI units typically require external regulators like the V1290.
🔁 Cross Reference Numbers
| Brand | Part Number |
|---|---|
| Standard Motor Prod. | VR128 |
| AC Delco | D663 |
| Wells | VR128 |
| Echlin (NAPA) | VR128SB |
| Niehoff | FF165 |
| Sorensen | 13009B (related float, not regulator) |
| Borg-Warner | R128 |
| OEM GM | 1119515, 1119516 |
🧪 Always match terminal layout and voltage specs — some regulators are fixed vs. adjustable.