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Bosch AL0804X Alternator
| Brand | Bosch AL0804X |
|---|---|
| Voltage | 12 |
| Plug Clock Rear View Main Mounting Ear at 6 O Clock | 4 |
| Plug Type | 335 |
| Fan Type | Internal |
| Rotation Direction | Clockwise |
| External Fan Included | Yes |
| One Wire Capable | No |
| Pulley Included | Yes |
| External Regulator Included | Yes |
| Pulley Groove Quantity | 7 |
| Case Color | Aluminum |
| Outside Pulley Diameter | 45 |
| Regulator Type | Internal |
| Case Material | Aluminum |
| Amperage Rating | 120 |
| New Or Remanufactured | Remanufactured |
| Original Equipment Manufacturer Names | Bo |
| Packaging | Box |
| Pulley Type | 7s |
| Pulley Type / Belt Type (Alternator) | 7s |
| Product line | Alternator (Remanufactured) |
| Fits | BMW · 9 vehicles |
Remanufactured unit. Restored for dependable charging performance and reliability.
Internal fan design. Helps manage heat for consistent operation.
Aluminum case. Lightweight construction with added corrosion resistance.
Cross-references 12311407440 for the same application. See all 1.
Bosch AL0804X Remanufactured Alternator
The Bosch AL0804X remanufactured alternator is a 12-volt charging component built for BMW applications that require a 120 amp alternator. It is listed for 2000-2003 BMW M5 and 2000-2003 BMW Z8, with a direct fit note for the 2003 BMW Z8. Bosch Premium Alternators are engineered, assembled, and tested for dependable charging performance and consistent electrical output.
Key Features
- Remanufactured Bosch alternator for OE-style charging system service
- 12-volt unit with a 120 amp amperage rating
- Internal fan and internal regulator design
- Clockwise rotation
- Includes pulley and external fan
- 7-groove pulley with 45 mm outside diameter
- Aluminum case and aluminum case material
- Plug type 335 with rear-view plug clock at 4 o’clock
- Cross-reference: BMW 12311407440
Product Details
Bosch AL0804X is a remanufactured alternator for BMW M5 and BMW Z8 charging system service. It is built around a 12-volt, 120 amp design with an internal regulator, internal fan, and clockwise rotation. The aluminum housing, 7S pulley type, and included pulley support OE-style replacement needs for vehicles that require stable battery charging and consistent electrical system operation. This part number, AL0804X, is a direct replacement choice for drivers and technicians servicing the BMW M5 and BMW Z8 within the listed model years.
Common Issues This Part Addresses
- Battery warning light caused by alternator output loss
- Low charging voltage during driving or idle conditions
- Dim lights or unstable electrical performance
- Battery drain related to a failing alternator
- Charging system noise or irregular operation from a worn unit
Installation Notes and Tips
Verify plug type 335, pulley configuration, and clockwise rotation before installation. Confirm the vehicle requires a 120 amp alternator and match the mounting and connector layout to the original unit. For BMW M5 and BMW Z8 applications, compare the existing alternator tag and belt routing to Bosch AL0804X before final installation.
Quality Assurance
Bosch Premium Alternators are remanufactured, built, and tested to support reliable performance in charging system service. AL0804X is packaged as a boxed replacement part for BMW applications requiring this specification.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2003 | BMW | M5 | 5.0L | V8 | N/A | To 120 Amp Alternator; Alternator (Remanufactured) |
| 2003 | BMW | Z8 | 5.0L | V8 | N/A | To 120 Amp Alternator; Alternator (Remanufactured) |
| 2003 | BMW | Z8 | 4.8L | V8 | N/A | Alternator (Remanufactured) |
| 2002 | BMW | M5 | 5.0L | V8 | N/A | To 120 Amp Alternator; Alternator (Remanufactured) |
| 2002 | BMW | Z8 | 5.0L | V8 | N/A | To 120 Amp Alternator; Alternator (Remanufactured) |
| 2001 | BMW | M5 | 5.0L | V8 | N/A | To 120 Amp Alternator; Alternator (Remanufactured) |
| 2001 | BMW | Z8 | 5.0L | V8 | N/A | To 120 Amp Alternator; Alternator (Remanufactured) |
| 2000 | BMW | M5 | 5.0L | V8 | N/A | To 120 Amp Alternator; Alternator (Remanufactured) |
| 2000 | BMW | Z8 | 5.0L | V8 | N/A | To 120 Amp Alternator; Alternator (Remanufactured) |
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