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MPA Electrical 7278109 Alternator
| Brand | MPA Electrical 7278109 |
|---|---|
| Amps | 66 Amps |
| Clock | 9:00 |
| Fan | External |
| Manufacturer | Delco |
| Pulley | 1 Groove V-belt |
| Regulator | Internal |
| Rotation | Clockwise |
| Volts | 12 Volts |
| Product line | Remanufactured |
| Fits | Chevrolet and GMC · 6 vehicles |
Remanufactured unit. A cost-effective alternator replacement with dependable charging performance.
Internal regulator. Simplifies installation with fewer external components to manage.
1-groove V-belt pulley. Built for a straightforward belt-driven charging setup.
Cross-references BBB Industries 7279-9, 7278-9 and 19135728 for the same application. See all 4.
Remanufactured Alternator for S10 and S15
MPA Electrical part number 7278109 is a remanufactured 12-volt alternator built for select Chevrolet S10 and GMC S15 applications. It is specified at 66 amps and uses an internal regulator, external fan, and a 1-groove V-belt pulley for the listed Delco-style charging system setup.
This alternator is a direct-fit charging component for 1984-1985 Chevrolet S10 and GMC S15 models with a 66 amp alternator, including 1984 Chevrolet S10 Blazer and 1984 GMC S15 Jimmy applications. The MPA Electrical remanufactured line focuses on service replacement units restored for vehicle-specific fitment and electrical output requirements.
- 66 amp output for the listed charging system
- 12-volt alternator with internal regulator
- External fan design
- 1-groove V-belt pulley
- Clockwise rotation
- Delco manufacturer style
- Clock position: 9:00
Fitment Details
- Fits 1984-1985 Chevrolet S10, N/A, w/ 66 amp alt.; Remanufactured
- Fits 1984-1985 GMC S15, N/A, w/ 66 amp alt.; Remanufactured
- Fits 1984 Chevrolet S10 Blazer, N/A, w/ 66 amp alt.; Remanufactured
- Fits 1984 GMC S15 Jimmy, N/A, w/ 66 amp alt.; Remanufactured
What This Alternator Helps Address
- Battery warning light caused by charging system output loss
- Dim lights or weak electrical performance at idle
- Slow battery recovery after starting
- Alternator noise or charging irregularities from a worn unit
- Replacement needs for a failed 66 amp Delco-style alternator
Installation Notes and Tips
Verify the existing alternator matches the 66 amp specification, 12-volt system, 1-groove V-belt pulley, clockwise rotation, and 9:00 clock position before installation. Confirm the vehicle uses the listed Delco-style configuration and compare the original unit to part number 7278109 for proper application matching. This part cross-references BBB Industries 7279-9 for the same application.
Quality Assurance
MPA Electrical remanufactured components are rebuilt for replacement use in the specified vehicle applications. Part number 7278109 is listed with interchange references 7278-9 and 19135728, supporting application matching for the correct Chevrolet S10 and GMC S15 charging system setup.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1985 | Chevrolet | S10 | 1.9L | L4 | N/A | w/ 66 amp alt.; Remanufactured |
| 1985 | GMC | S15 | 1.9L | L4 | N/A | w/ 66 amp alt.; Remanufactured |
| 1984 | Chevrolet | S10 | 1.9L | L4 | N/A | w/ 66 amp alt.; Remanufactured |
| 1984 | Chevrolet | S10 Blazer | 1.9L | L4 | N/A | w/ 66 amp alt.; Remanufactured |
| 1984 | GMC | S15 | 1.9L | L4 | N/A | w/ 66 amp alt.; Remanufactured |
| 1984 | GMC | S15 Jimmy | 1.9L | L4 | N/A | w/ 66 amp alt.; Remanufactured |
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