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Bosch AL7577N Alternator
| Brand | Bosch AL7577N |
|---|---|
| Voltage | 12 |
| Plug Clock Rear View Main Mounting Ear at 6 O Clock | 10 |
| Plug Type | 336 |
| Fan Type | Internal |
| Rotation Direction | Clockwise |
| External Fan Included | Yes |
| One Wire Capable | No |
| Pulley Included | Yes |
| External Regulator Included | Yes |
| Pulley Groove Quantity | 8 |
| Case Color | Aluminum |
| Outside Pulley Diameter | 69 |
| Regulator Type | Internal |
| Case Material | Aluminum |
| Amperage Rating | 110 |
| New Or Remanufactured | New |
| Original Equipment Manufacturer Names | Fo |
| Packaging | Box |
| Pulley Type | 8s |
| Pulley Type / Belt Type (Alternator) | 8s |
| Product line | Alternator (New) |
| Fits | Ford · 30 vehicles |
New alternator. Built and tested for dependable charging performance.
Aluminum case. Lightweight construction helps resist corrosion.
Internal regulator. Integrated design simplifies the charging system.
Cross-references F81Z10346GA for the same application. See all 1.
Bosch AL7577N Alternator Overview
The Bosch AL7577N is a new 12-volt alternator built for charging-system performance and dependable operation. It is a direct-fit option for select Ford Super Duty trucks, including 1999-2001 Ford F-250 Super Duty and 1999-2001 Ford F-350 Super Duty applications with the listed configurations.
Bosch Alternator (New) products are part of Bosch’s charging and starting lineup, focused on OE-style fit and consistent electrical output for demanding truck use. This AL7577N alternator is configured with an internal fan, internal regulator, clockwise rotation, and an 8-groove pulley for the specified belt setup.
Key Features
- Brand: Bosch
- Part number: AL7577N
- 12-volt new alternator
- 110-amp amperage rating
- Internal fan and internal regulator
- Clockwise rotation direction
- 8-groove pulley included
- Aluminum case and aluminum case color
- External fan included
- External regulator included
- Plug type 336 with rear-view plug clock at 10 o’clock
Detailed Description
The Bosch AL7577N alternator is engineered for Ford Super Duty charging-system service where stable voltage output matters under load. It is a new unit with a 110-amp rating, 12-volt electrical system compatibility, and an 8S pulley type with a 69 mm outside pulley diameter. The aluminum housing supports a durable OE-style replacement format, while the internal fan and internal regulator help maintain controlled charging performance. If you are replacing a worn alternator on a 1999-2001 Ford F-250 Super Duty or 1999-2001 Ford F-350 Super Duty, AL7577N matches the listed vehicle configurations and connector layout. This part cross-references Ford F81Z10346GA for the same application.
Vehicle Fitment
- Fits 1999-2001 Ford F-250 Super Duty, N/A, with Ambulance Package; with Auxiliary Alternator; Alternator (New)
- Fits 1999-2001 Ford F-250 Super Duty, N/A, Located on Bottom; with Dual Alternators; without Ambulance Package; Alternator (New)
- Fits 1999-2001 Ford F-350 Super Duty, N/A, with Ambulance Package; with Auxiliary Alternator; Alternator (New)
- Fits 1999-2001 Ford F-350 Super Duty, N/A, Located on Bottom; with Dual Alternators; without Ambulance Package; Alternator (New)
Common Replacement Uses
- Charging warning light caused by alternator output loss
- Low battery voltage during driving or idling
- Electrical accessories dimming under load
- Alternator noise or bearing-related charging issues
- Replacement for a failed Ford Super Duty alternator
Installation Notes and Tips
Verify the plug type, plug clock position, pulley style, and belt groove count before installation. Confirm the vehicle’s charging-system configuration, including auxiliary or dual alternator setup, matches the listed fitment notes for your Ford F-250 Super Duty or Ford F-350 Super Duty. Compare the original unit’s mounting orientation and connector layout to the Bosch AL7577N before removal.
Quality Assurance
Bosch Premium Alternators are built and tested for performance and reliability in charging-system applications. The AL7577N is a new alternator supplied in box packaging and manufactured to support consistent electrical output in the specified Ford Super Duty applications.
| Year | Make | Model | Drive Type | Liters | Cylinders | Notes |
|---|---|---|---|---|---|---|
| 2002 | Ford | F-450 Super Duty | 4 X 2 | 7.3L | V8 | Located on Bottom; with Ambulance Package; Alternator (New) |
| 2002 | Ford | F-450 Super Duty | 4 X 2 | 7.3L | V8 | Located on Bottom; with Dual Alternators; without Ambulance Package; Alternator (New) |
| 2002 | Ford | F-450 Super Duty | 4 X 4 | 7.3L | V8 | Early Production; Located on Bottom; with Ambulance Package; Alternator (New) |
| 2002 | Ford | F-450 Super Duty | 4 X 4 | 7.3L | V8 | Not for ambulance, for vehicles with dual alternator system; Early Production; Located on Bottom; Alternator (New) |
| 2002 | Ford | F-550 Super Duty | — | 7.3L | V8 | Located on Bottom; with Ambulance Package; Alternator (New) |
| 2002 | Ford | F-550 Super Duty | — | 7.3L | V8 | Located on Bottom; with Dual Alternators; without Ambulance Package; Alternator (New) |
| 2001 | Ford | F-250 Super Duty | — | 7.3L | V8 | with Ambulance Package; with Auxiliary Alternator; Alternator (New) |
| 2001 | Ford | F-250 Super Duty | — | 7.3L | V8 | Located on Bottom; with Dual Alternators; without Ambulance Package; Alternator (New) |
| 2001 | Ford | F-350 Super Duty | — | 7.3L | V8 | with Ambulance Package; with Auxiliary Alternator; Alternator (New) |
| 2001 | Ford | F-350 Super Duty | — | 7.3L | V8 | Located on Bottom; with Dual Alternators; without Ambulance Package; Alternator (New) |
| 2001 | Ford | F-450 Super Duty | — | 7.3L | V8 | Located on Bottom; with Ambulance Package; Alternator (New) |
| 2001 | Ford | F-450 Super Duty | — | 7.3L | V8 | Located on Bottom; with Dual Alternators; without Ambulance Package; Alternator (New) |
| 2001 | Ford | F-550 Super Duty | — | 7.3L | V8 | Located on Bottom; with Ambulance Package; Alternator (New) |
| 2001 | Ford | F-550 Super Duty | — | 7.3L | V8 | Located on Bottom; with Dual Alternators; without Ambulance Package; Alternator (New) |
| 2000 | Ford | F-250 Super Duty | — | 7.3L | V8 | Located on Bottom; with Dual Alternators; without Ambulance Package; Alternator (New) |
| 2000 | Ford | F-250 Super Duty | — | 7.3L | V8 | with Ambulance Package; with Auxiliary Alternator; Alternator (New) |
| 2000 | Ford | F-350 Super Duty | — | 7.3L | V8 | with Ambulance Package; with Auxiliary Alternator; Alternator (New) |
| 2000 | Ford | F-350 Super Duty | — | 7.3L | V8 | Located on Bottom; with Dual Alternators; without Ambulance Package; Alternator (New) |
| 2000 | Ford | F-450 Super Duty | — | 7.3L | V8 | Located on Bottom; with Ambulance Package; Alternator (New) |
| 2000 | Ford | F-450 Super Duty | — | 7.3L | V8 | Located on Bottom; with Dual Alternators; without Ambulance Package; Alternator (New) |
| 2000 | Ford | F-550 Super Duty | — | 7.3L | V8 | Located on Bottom; with Dual Alternators; without Ambulance Package; Alternator (New) |
| 2000 | Ford | F-550 Super Duty | — | 7.3L | V8 | Located on Bottom; with Ambulance Package; Alternator (New) |
| 1999 | Ford | F-250 Super Duty | — | 7.3L | V8 | with Ambulance Package; with Auxiliary Alternator; Alternator (New) |
| 1999 | Ford | F-250 Super Duty | — | 7.3L | V8 | Located on Bottom; with Dual Alternators; without Ambulance Package; Alternator (New) |
| 1999 | Ford | F-350 Super Duty | — | 7.3L | V8 | with Ambulance Package; with Auxiliary Alternator; Alternator (New) |
| 1999 | Ford | F-350 Super Duty | — | 7.3L | V8 | Located on Bottom; with Dual Alternators; without Ambulance Package; Alternator (New) |
| 1999 | Ford | F-450 Super Duty | — | 7.3L | V8 | Located on Bottom; with Ambulance Package; Alternator (New) |
| 1999 | Ford | F-450 Super Duty | — | 7.3L | V8 | Located on Bottom; with Dual Alternators; without Ambulance Package; Alternator (New) |
| 1999 | Ford | F-550 Super Duty | — | 7.3L | V8 | Located on Bottom; with Dual Alternators; without Ambulance Package; Alternator (New) |
| 1999 | Ford | F-550 Super Duty | — | 7.3L | V8 | Located on Bottom; with Ambulance Package; Alternator (New) |
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