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MPA Electrical 15704 Alternator
| Brand | MPA Electrical 15704 |
|---|---|
| Amps | 190 Amps |
| Clock | 10:30 |
| Fan | Liquid Cooled |
| Manufacturer | Hitachi |
| Pulley | 5 Groove Serpentine |
| Regulator | Internal |
| Rotation | Clockwise |
| Volts | 12 Volts |
| Product line | Remanufactured |
| Fits | Audi · 5 vehicles |
Remanufactured unit. A cost-effective alternator replacement built from quality components.
190-amp output. Delivers strong charging performance for demanding electrical loads.
Internal regulator. Simplifies installation with an integrated voltage control design.
Cross-references BBB Industries 11211, 079-903-021E and 88864940 for the same application. See all 4.
Remanufactured Alternator for Audi S4
MPA Electrical Part Number 15704 is a remanufactured 12-volt alternator built for select Audi S4 applications. It delivers 190 amps and uses a Hitachi design with an internal regulator, liquid-cooled fan, clockwise rotation, and a 5-groove serpentine pulley.
This remanufactured MPA Electrical alternator is built for Audi S4 charging-system service where OE-style fitment and electrical output matter. The 10:30 clock position and 77mm pulley application details help match the correct unit for the vehicle listed below.
Key Features
- 190 amp output for charging-system replacement
- 12-volt alternator with internal regulator
- Hitachi manufacturer design
- Liquid-cooled fan construction
- 5-groove serpentine pulley
- Clockwise rotation
- 10:30 clock position
- Remanufactured for select Audi S4 applications
Product Details
MPA Electrical 15704 is a remanufactured alternator for the Audi S4 platform, engineered around the listed Hitachi configuration. It is specified for 2006-2009 Audi S4 models with a 77mm pulley and for 2005 Audi S4 second-production vehicles with a Hitachi alternator; the 2005 application is not interchangeable with the Delco version. This part cross-references BBB Industries 11211 for the same application.
Vehicle Fitment
- Fits 2006-2009 Audi S4, N/A, w/ 77mm Pulley; Remanufactured
- Fits 2005 Audi S4, N/A, Second Production, w/ Hitachi alt. (not interchangeable with Delco version); Remanufactured
Common Replacement Reasons
- Battery warning light or charging-system fault
- Low charging output at idle or under load
- Electrical accessories dimming during operation
- Alternator noise or bearing wear
- Voltage irregularities from a failing internal regulator
Installation Notes
Verify the vehicle’s alternator style, pulley diameter, clock position, and connector match before installation. Confirm the application is the Hitachi version on 2005 Audi S4 second-production vehicles, since it is not interchangeable with the Delco unit. Inspect the belt condition, pulley alignment, and charging-system wiring during replacement.
Quality Assurance
MPA Electrical remanufactured components are rebuilt to restore proper charging performance for the specified application. Part Number 15704 is intended for direct replacement use on the listed Audi S4 fitments.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2009 | Audi | S4 | 4.2L | V8 | N/A | w/ 77mm Pulley; Remanufactured |
| 2008 | Audi | S4 | 4.2L | V8 | N/A | w/ 77mm Pulley; Remanufactured |
| 2007 | Audi | S4 | 4.2L | V8 | N/A | w/ 77mm Pulley; Remanufactured |
| 2006 | Audi | S4 | 4.2L | V8 | N/A | w/ 77mm Pulley; Remanufactured |
| 2005 | Audi | S4 | 4.2L | V8 | N/A | Second Production, w/ Hitachi alt. (not interchangeable with Delco version); Remanufactured |
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