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Bosch AL148X Alternator
| Brand | Bosch AL148X |
|---|---|
| Amperage Rating | 140 |
| 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 | BO |
| Outside Pulley Diameter | 73 |
| Packaging | Box |
| Plug Clock Rear View Main Mounting Ear at 6 O Clock | 12 |
| Plug Type | 381 |
| Pulley Groove Quantity | 1 |
| Pulley Included | Yes |
| Pulley Type | 1V |
| Pulley Type / Belt Type (Alternator) | 1V |
| Regulator Type | Internal |
| Rotation Direction | Clockwise |
| Voltage | 12 |
| Product line | Alternator (Remanufactured) |
| Fits | BMW · 18 vehicles |
Remanufactured alternator. Built and tested for dependable charging performance.
Aluminum case. Lightweight construction helps manage heat effectively.
External fan included. Improves cooling for consistent operation.
Cross-references 12311735705 and 12311735706 for the same application. See all 2.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Bosch AL148X Remanufactured Alternator
The Bosch AL148X is a remanufactured 12-volt alternator built for charging-system performance and dependable electrical output. It is specified for select BMW applications, including BMW 535i, 735i, 735iL, and 535is models with a 140 amp alternator requirement.
Key Features
- Remanufactured Bosch alternator for 12-volt charging systems
- 140 amp amperage rating for the listed BMW applications
- Internal regulator with external regulator included
- External fan included for cooling support
- Single-groove pulley included with 1V pulley/belt type
- Clockwise rotation direction
- Aluminum case and aluminum case color
- Plug type 381 with rear-view plug clock position at 6 o’clock
Product Details
Bosch Premium Alternators are remanufactured, tested, and built to deliver consistent charging performance and reliability. The AL148X uses an internal regulator, includes an external fan, and comes with a pulley already specified for the application. This Bosch AL148X alternator is a direct-fit charging component for BMW 535i, BMW 735i, BMW 735iL, and BMW 535is models listed below.
This part cross-references Bosch OE numbers 12311735705 and 12311735706 for the same application.
Vehicle Fitment
- Fits 1988-1993 BMW 535i, N/A; to 140 amp alternator
- Fits 1987-1992 BMW 735i, N/A; to 140 amp alternator
- Fits 1988-1992 BMW 735iL, N/A; to 140 amp alternator
- Fits 1988 BMW 535is, N/A; to 140 amp alternator
Common Uses
- Restoring proper battery charging after alternator wear or failure
- Addressing low-voltage or charging warning light concerns
- Replacing a noisy, weak, or inconsistent alternator output unit
- Correcting charging-system issues on BMW 535i and BMW 735i applications
- Supporting stable electrical performance in 12-volt systems
Installation Notes
Verify the plug type, pulley configuration, rotation direction, and amperage rating before installation. Confirm the vehicle’s charging-system requirements match the listed BMW fitment and 140 amp specification. Inspect belt condition, electrical connectors, and mounting points during replacement to help ensure proper operation.
Quality Assurance
This Bosch remanufactured alternator is built and tested to meet Bosch performance and reliability standards for the listed applications.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1993 | BMW | 535i | 3.5L | L6 | N/A | To 140 Amp Alternator; Alternator (Remanufactured) |
| 1992 | BMW | 535i | 3.5L | L6 | N/A | To 140 Amp Alternator; Alternator (Remanufactured) |
| 1992 | BMW | 735i | 3.5L | L6 | N/A | To 140 Amp Alternator; Alternator (Remanufactured) |
| 1992 | BMW | 735iL | 3.5L | L6 | N/A | To 140 Amp Alternator; Alternator (Remanufactured) |
| 1991 | BMW | 535i | 3.5L | L6 | N/A | To 140 Amp Alternator; Alternator (Remanufactured) |
| 1991 | BMW | 735i | 3.5L | L6 | N/A | To 140 Amp Alternator; Alternator (Remanufactured) |
| 1991 | BMW | 735iL | 3.5L | L6 | N/A | To 140 Amp Alternator; Alternator (Remanufactured) |
| 1990 | BMW | 535i | 3.5L | L6 | N/A | To 140 Amp Alternator; Alternator (Remanufactured) |
| 1990 | BMW | 735i | 3.5L | L6 | N/A | To 140 Amp Alternator; Alternator (Remanufactured) |
| 1990 | BMW | 735iL | 3.5L | L6 | N/A | To 140 Amp Alternator; Alternator (Remanufactured) |
| 1989 | BMW | 535i | 3.5L | L6 | N/A | To 140 Amp Alternator; Alternator (Remanufactured) |
| 1989 | BMW | 735i | 3.5L | L6 | N/A | To 140 Amp Alternator; Alternator (Remanufactured) |
| 1989 | BMW | 735iL | 3.5L | L6 | N/A | To 140 Amp Alternator; Alternator (Remanufactured) |
| 1988 | BMW | 535i | 3.5L | L6 | N/A | To 140 Amp Alternator; Alternator (Remanufactured) |
| 1988 | BMW | 535is | 3.5L | L6 | N/A | To 140 Amp Alternator; Alternator (Remanufactured) |
| 1988 | BMW | 735i | 3.5L | L6 | N/A | To 140 Amp Alternator; Alternator (Remanufactured) |
| 1988 | BMW | 735iL | 3.5L | L6 | N/A | To 140 Amp Alternator; Alternator (Remanufactured) |
| 1987 | BMW | 735i | 3.5L | L6 | N/A | To 140 Amp Alternator; Alternator (Remanufactured) |
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