/live/media/BS/BS_AL401X_Fro.jpg)
Will it fit your vehicle?
Confirm before you buy. Free return shipping if it doesn't fit.
Bosch AL401X Alternator
| Brand | Bosch AL401X |
|---|---|
| Amperage Rating | 90 |
| Case Color | Aluminum |
| Case Material | Aluminum |
| External Fan Included | Yes |
| External Regulator Included | Yes |
| Fan Type | External |
| New Or Remanufactured | Remanufactured |
| One Wire Capable | No |
| Original Equipment Manufacturer Names | PR |
| Outside Pulley Diameter | 0 |
| Packaging | Box |
| Plug Clock Rear View Main Mounting Ear at 6 O Clock | 7 |
| Plug Type | 406 |
| Pulley Groove Quantity | 0 |
| Pulley Included | No |
| Pulley Type | NA |
| Pulley Type / Belt Type (Alternator) | NA |
| Regulator Type | Internal |
| Rotation Direction | Clockwise |
| Voltage | 12 |
| Product line | Alternator (Remanufactured) |
| Fits | Porsche · 20 vehicles |
Remanufactured unit. Built and tested for dependable charging performance.
Aluminum case. Lightweight construction helps manage heat effectively.
External fan included. Supports cooling for consistent alternator operation.
Cross-references 91160312005 for the same application. See all 1.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Bosch Remanufactured Alternator for Porsche 911
The Bosch AL401X is a remanufactured 12-volt alternator built for Porsche 911 charging-system service. It is specified for 1984-1989 Porsche 911 applications, including vehicles noted for a 90 amp alternator and Paris-Rhone unit configurations.
Key Features
- Remanufactured Bosch alternator for charging-system replacement
- 12-volt design with a 90 amp amperage rating
- Internal regulator with external regulator included
- External fan included for cooling support
- Clockwise rotation direction
- Aluminum case and aluminum case material
- Plug type 406 with rear-view plug clocking at 6 o’clock
- No pulley included and not one-wire capable
Product Details
Bosch Premium Alternators are remanufactured, tested, and built to deliver consistent electrical performance and dependable operation. The AL401X is designed for Porsche 911 charging systems that require a 12-volt, 90 amp alternator with the listed plug configuration and mounting orientation. This Bosch AL401X alternator is a direct-fit service part for Porsche 911 models in the 1984-1989 range, and it cross-references Porsche 91160312005 for the same application.
Common Problems This Part Can Address
- Low battery charging output
- Battery warning light illumination
- Dim lights caused by alternator output loss
- Charging-system instability at idle or driving speed
- Alternator wear or failure in Porsche 911 electrical systems
Installation Notes and Tips
- Verify the vehicle’s alternator mounting, plug type, and clocking before installation.
- Confirm the application is for a 90 amp alternator when matching this part to the vehicle.
- Check belt and pulley requirements, since the pulley is not included.
- Inspect charging cables, grounds, and battery condition during replacement.
- Use the vehicle’s original routing and connector layout to confirm fitment on Porsche 911 models.
Quality Assurance
Bosch remanufactured alternators are built and tested to meet charging-system performance and reliability expectations for service replacement. The AL401X is part of Bosch’s Premium Alternators line, focused on remanufactured electrical components for Porsche 911 applications.
| Year | Make | Model | Body Type | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 1989 | Porsche | 911 | — | 3.3L | H6 | N/A | To 90 Amp Alternator; Alternator (Remanufactured) |
| 1989 | Porsche | 911 | — | 3.2L | H6 | N/A | To 90 Amp Alternator; Alternator (Remanufactured) |
| 1989 | Porsche | 911 | — | 3.6L | H6 | N/A | To 90 Amp Alternator; Alternator (Remanufactured) |
| 1988 | Porsche | 911 | — | 3.3L | H6 | N/A | To 90 Amp Alternator; Alternator (Remanufactured) |
| 1988 | Porsche | 911 | — | 3.2L | H6 | N/A | To 90 Amp Alternator; Alternator (Remanufactured) |
| 1987 | Porsche | 911 | — | 3.3L | H6 | N/A | To 90 Amp Alternator; Alternator (Remanufactured) |
| 1987 | Porsche | 911 | — | 3.2L | H6 | N/A | To 90 Amp Alternator; Alternator (Remanufactured) |
| 1987 | Porsche | 911 | — | 3.3L | H6 | N/A | Alternator (Remanufactured) |
| 1986 | Porsche | 911 | — | 3.3L | H6 | N/A | To 90 Amp Alternator; Alternator (Remanufactured) |
| 1986 | Porsche | 911 | — | 3.2L | H6 | N/A | To 90 Amp Alternator; Alternator (Remanufactured) |
| 1985 | Porsche | 911 | — | 3.2L | H6 | N/A | To 90 Amp Alternator; Alternator (Remanufactured) |
| 1985 | Porsche | 911 | — | 3.2L | H6 | N/A | Alternator (Remanufactured) |
| 1985 | Porsche | 911 | — | 3.3L | H6 | N/A | Alternator (Remanufactured) |
| 1985 | Porsche | 911 | — | 3.2L | H6 | N/A | To 90 Amp Alternator; with Paris-Rhone Unit; Alternator (Remanufactured) |
| 1984 | Porsche | 911 | Convertible | 3.2L | H6 | N/A | To 90 Amp Alternator; with Paris-Rhone Unit; Alternator (Remanufactured) |
| 1984 | Porsche | 911 | Targa | 3.2L | H6 | N/A | Alternator (Remanufactured) |
| 1984 | Porsche | 911 | Coupe | 3.2L | H6 | N/A | Alternator (Remanufactured) |
| 1984 | Porsche | 911 | — | 3.2L | H6 | N/A | Alternator (Remanufactured) |
| 1984 | Porsche | 911 | — | 3.3L | H6 | N/A | Alternator (Remanufactured) |
| 1984 | Porsche | 911 | — | 3.2L | H6 | N/A | To 90 Amp Alternator; with Paris-Rhone Unit; Alternator (Remanufactured) |
| No rows match your filter. | |||||||