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Bosch AL0850X Alternator
| Brand | Bosch AL0850X |
|---|---|
| Amperage Rating | 180 |
| Case Color | Aluminum |
| Case Material | Aluminum |
| External Fan Included | Yes |
| External Regulator Included | Yes |
| Fan Type | Internal |
| New Or Remanufactured | Remanufactured |
| One Wire Capable | No |
| Original Equipment Manufacturer Names | BO |
| Outside Pulley Diameter | 55 |
| Packaging | Box |
| Plug Clock Rear View Main Mounting Ear at 6 O Clock | 12 |
| Plug Type | 463 |
| Pulley Groove Quantity | 7 |
| Pulley Included | Yes |
| Pulley Type | 6S |
| Pulley Type / Belt Type (Alternator) | 7S-CP |
| Regulator Type | Internal |
| Rotation Direction | Clockwise |
| Voltage | 12 |
| Product line | Alternator (Remanufactured) |
| Fits | BMW · 21 vehicles |
Remanufactured unit. Built and tested for dependable charging performance.
Aluminum case. Lightweight construction helps support durability and heat management.
Includes pulley. Ready for a straightforward replacement installation.
Cross-references 12317558220 for the same application. See all 1.
Bosch Remanufactured Alternator AL0850X
The Bosch AL0850X remanufactured alternator is built for 12-volt charging systems and engineered for steady electrical output in BMW applications that call for a 180 amp alternator. It features an internal fan, internal regulator, clockwise rotation, and a 7-groove pulley for the specified belt setup.
Bosch Premium Alternators are part of the Bosch Alternator (Remanufactured) line, focused on performance and reliability through controlled remanufacturing, testing, and specification matching. If you need a remanufactured BMW alternator for a 335i, 535i, or 135i platform, AL0850X is built to match the listed OE-style application.
Key Features
- 12-volt remanufactured alternator for charging-system service
- 180 amp amperage rating for BMW electrical demand
- Internal fan and internal regulator design
- Clockwise rotation
- Includes pulley and external fan
- 7-groove pulley, 55 mm outside pulley diameter
- Aluminum case and aluminum case material
- Plug type 463 with rear-view plug clocking at 12 o’clock
- One-wire capable: No
Detailed Description
Bosch AL0850X is a remanufactured alternator designed for BMW charging-system replacement where the vehicle calls for a 180 amp unit. The aluminum housing, internal fan, internal regulator, and clockwise rotation support OE-style fitment requirements, while the included pulley and 7-groove belt configuration align with the listed application details. This part cross-references Bosch OE number 12317558220 for the same application.
Compatible With BMW 335i, BMW 335is, BMW 335i xDrive, BMW 335xi, BMW 535i, BMW 535i xDrive, BMW 535xi, BMW 135i, and BMW 1 Series M applications listed below. The Bosch AL0850X part number is also useful when searching for a remanufactured BMW alternator by OE reference or charging-system specification.
What It Helps Address
- Battery warning lights caused by weak charging output
- Dim lights or unstable electrical performance at idle
- Charging-system failure from a worn alternator
- Voltage irregularities affecting vehicle electronics
- Noise or pulley-related alternator service concerns
Installation Notes and Tips
- Verify the vehicle uses a 180 amp alternator before ordering.
- Confirm plug type 463 and rear plug clocking at 12 o’clock.
- Check pulley groove count and belt type against the existing unit.
- Inspect the charging circuit, battery condition, and belt drive components during replacement.
- Use the listed BMW fitment by year and model for direct application matching.
Quality Assurance
Bosch Premium Alternators are designed, built, and tested to support reliable charging performance. AL0850X is a remanufactured Bosch alternator built to the stated specifications for BMW fitment, including 2011-2013 BMW 335is, 2011 BMW 1 Series M, 2008-2010 BMW 135i, 2007-2010 BMW 335i, 2009-2010 BMW 335i xDrive, 2008-2010 BMW 535i, 2009-2010 BMW 535i xDrive, 2007-2008 BMW 335xi, and 2008 BMW 535xi.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2013 | BMW | 335is | 3.0L | L6 | N/A | To 180 Amp Alternator; Alternator (Remanufactured) |
| 2012 | BMW | 335is | 3.0L | L6 | N/A | To 180 Amp Alternator; Alternator (Remanufactured) |
| 2011 | BMW | 1 Series M | 3.0L | L6 | N/A | To 180 Amp Alternator; Alternator (Remanufactured) |
| 2011 | BMW | 335is | 3.0L | L6 | N/A | To 180 Amp Alternator; Alternator (Remanufactured) |
| 2010 | BMW | 135i | 3.0L | L6 | N/A | To 180 Amp Alternator; Alternator (Remanufactured) |
| 2010 | BMW | 335i | 3.0L | L6 | N/A | To 180 Amp Alternator; Alternator (Remanufactured) |
| 2010 | BMW | 335i xDrive | 3.0L | L6 | N/A | To 180 Amp Alternator; Alternator (Remanufactured) |
| 2010 | BMW | 535i | 3.0L | L6 | N/A | To 180 Amp Alternator; Alternator (Remanufactured) |
| 2010 | BMW | 535i xDrive | 3.0L | L6 | N/A | To 180 Amp Alternator; Alternator (Remanufactured) |
| 2009 | BMW | 135i | 3.0L | L6 | N/A | To 180 Amp Alternator; Alternator (Remanufactured) |
| 2009 | BMW | 335i | 3.0L | L6 | N/A | To 180 Amp Alternator; Alternator (Remanufactured) |
| 2009 | BMW | 335i xDrive | 3.0L | L6 | N/A | To 180 Amp Alternator; Alternator (Remanufactured) |
| 2009 | BMW | 535i | 3.0L | L6 | N/A | To 180 Amp Alternator; Alternator (Remanufactured) |
| 2009 | BMW | 535i xDrive | 3.0L | L6 | N/A | To 180 Amp Alternator; Alternator (Remanufactured) |
| 2008 | BMW | 135i | 3.0L | L6 | N/A | To 180 Amp Alternator; Alternator (Remanufactured) |
| 2008 | BMW | 335i | 3.0L | L6 | N/A | To 180 Amp Alternator; Alternator (Remanufactured) |
| 2008 | BMW | 335xi | 3.0L | L6 | N/A | To 180 Amp Alternator; Alternator (Remanufactured) |
| 2008 | BMW | 535i | 3.0L | L6 | N/A | To 180 Amp Alternator; Alternator (Remanufactured) |
| 2008 | BMW | 535xi | 3.0L | L6 | N/A | To 180 Amp Alternator; Alternator (Remanufactured) |
| 2007 | BMW | 335i | 3.0L | L6 | N/A | To 180 Amp Alternator; Alternator (Remanufactured) |
| 2007 | BMW | 335xi | 3.0L | L6 | N/A | To 180 Amp Alternator; Alternator (Remanufactured) |
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