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MPA Electrical 7872403 Alternator
| Brand | MPA Electrical 7872403 |
|---|---|
| Amps | 85 Amps |
| Clock | 3:00 |
| Fan | External |
| Manufacturer | Delco |
| Pulley | 4 Groove Serpentine |
| Regulator | Internal |
| Rotation | Clockwise |
| Volts | 12 Volts |
| Product line | Remanufactured |
| Fits | Pontiac, Buick, and Oldsmobile · 8 vehicles |
Remanufactured unit. A remanufactured alternator for dependable charging performance.
Internal regulator. Simplifies installation with a built-in voltage regulator.
4-groove serpentine pulley. Matches serpentine belt setups for smooth power transfer.
Cross-references 7809-3, 7872-3 and 1101123 for the same application. See all 6.
Remanufactured Alternator for GM Applications
MPA Electrical remanufactured alternator Part Number 7872403 is a 12-volt, 85-amp charging unit built for select Delco applications. It features an internal regulator, external fan, clockwise rotation, and a 4-groove serpentine pulley for direct-fit replacement in supported vehicles.
This remanufactured alternator line from MPA Electrical focuses on restoring charging-system function with OE-style specifications. Part number 7872403 is a practical choice for drivers servicing a Pontiac Grand Am, Buick Skylark, or Oldsmobile Calais with the matching engine and equipment configuration.
- 85 amps output for standard charging-system replacement
- 12-volt electrical system
- Internal voltage regulator
- External fan design
- 4-groove serpentine pulley
- Clockwise rotation
- Delco manufacturer specification
- Remanufactured for select GM fitments
Fitment Details
Compatible With:
- Fits 1988-1991 Pontiac Grand Am, N/A, w/ AC, Standard, w/ 85 amp alt.; Remanufactured
- Fits 1987 Pontiac Grand Am, N/A, Fits vehicles without air conditioning.; Remanufactured
- Fits 1987 Buick Skylark, N/A, Fits vehicles without air conditioning.; Remanufactured
- Fits 1986-1987 Oldsmobile Calais, N/A, Fits vehicles without air conditioning.; Remanufactured
What This Alternator Helps Resolve
- Low battery charging caused by a worn alternator
- Dim lights or electrical instability during operation
- Battery warning light concerns related to charging output
- Charging-system failure on supported Pontiac Grand Am, Buick Skylark, and Oldsmobile Calais applications
Installation Notes and Tips
Verify pulley groove count, regulator style, rotation, and amperage before installation. Confirm the vehicle’s air conditioning configuration and compare the original unit to Part Number 7872403 to ensure the correct Delco-style replacement. Inspect the belt, wiring connections, and charging-system grounds during service.
Quality Assurance
MPA Electrical remanufactured components are built to restore OE-style fit and function for supported applications. This part cross-references 7809-3 and 1101123 for the same application.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1991 | Pontiac | Grand Am | 2.5L | L4 | N/A | w/ AC, Standard, w/ 85 amp alt.; Remanufactured |
| 1990 | Pontiac | Grand Am | 2.5L | L4 | N/A | w/ AC, Standard, w/ 85 amp alt.; Remanufactured |
| 1989 | Pontiac | Grand Am | 2.5L | L4 | N/A | w/ AC, Standard, w/ 85 amp alt.; Remanufactured |
| 1988 | Pontiac | Grand Am | 2.5L | L4 | N/A | w/ AC, Standard, w/ 85 amp alt.; Remanufactured |
| 1987 | Buick | Skylark | 2.5L | L4 | N/A | Fits vehicles without air conditioning.; Remanufactured |
| 1987 | Oldsmobile | Calais | 2.5L | L4 | N/A | Fits vehicles without air conditioning.; Remanufactured |
| 1987 | Pontiac | Grand Am | 2.5L | L4 | N/A | Fits vehicles without air conditioning.; Remanufactured |
| 1986 | Oldsmobile | Calais | 2.5L | L4 | N/A | Fits vehicles without air conditioning.; Remanufactured |
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