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Bosch AL0819N Alternator
| Brand | Bosch AL0819N |
|---|---|
| Voltage | 14 |
| Plug Clock Rear View Main Mounting Ear at 6 O Clock | 1 |
| Fan Type | Internal |
| Ground Type | Negative |
| Mounting Configuration Code | Short |
| Rotation Direction | Clockwise (right) |
| One Wire Capable | No |
| Pulley Included | Yes |
| External Regulator Included | Yes |
| Pulley Groove Quantity | 6 |
| Case Color | Silver |
| Outside Pulley Diameter | 50 |
| Regulator Type | Internal |
| Decoupled Or Clutch Pulley | No |
| AC Service Tap | No |
| Case Material | Aluminum |
| Amperage Rating | 150 |
| Mounting Type | Single pivoted lever |
| Brushless | No |
| Automotive Item Weight (lbs) | 15.542589 lb |
| New Or Remanufactured | New |
| Product Length | 7.283465 in |
| Pulley Type / Belt Type (Alternator) | 6s |
| Product line | Alternator (New) |
| Fits | Mercedes-Benz · 23 vehicles |
New alternator. Built and tested for dependable charging performance.
Aluminum case. Lightweight construction helps support durability and heat management.
150-amp output. Delivers strong electrical capacity for demanding systems.
Cross-references 0121542702 and 0131548302 for the same application. See all 2.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Bosch AL0819N Alternator Overview
The Bosch AL0819N is a new 14-volt alternator built for Mercedes-Benz charging systems that require a 150-amp output and a clockwise rotation. It features an internal regulator, internal fan, aluminum case, and included pulley for a direct-fit replacement in select AMG and V8 applications.
Bosch Premium Alternators are engineered, built, and tested for consistent electrical performance and dependable operation. The AL0819N is a practical choice for drivers servicing a Mercedes-Benz C55 AMG, CLK55 AMG, SLK55 AMG, or other listed applications that need stable charging output from a new alternator assembly.
Key Features
- Part number: AL0819N
- 14-volt alternator with 150-amp amperage rating
- New Bosch alternator for charging system replacement
- Internal regulator and internal fan design
- Clockwise rotation with negative ground
- Single pivoted lever mounting configuration
- 6-groove pulley included, 50 mm outside pulley diameter
- Aluminum case with silver finish
- 6S pulley/belt type
- External regulator included as listed in product data
Product Details
The Bosch AL0819N alternator is built for vehicles that need reliable battery charging and steady electrical output under load. Its 150-amp rating supports demanding factory electrical systems, while the internal regulator helps manage charging performance within the alternator assembly. The included 6-groove pulley and clockwise rotation make this unit suitable for the specified Mercedes-Benz fitments, including Mercedes-Benz C55 AMG, CLK55 AMG, and SLK55 AMG applications. The AL0819N also cross-references Bosch 0121542702 and 0131548302 for the same application.
Common Issues This Part Can Address
- Low battery charge caused by alternator output loss
- Battery warning light triggered by charging system faults
- Dim lights or unstable electrical performance at idle
- Noise or wear related to a failing alternator assembly
- Charging inconsistency in high-demand Mercedes-Benz electrical systems
Installation Notes and Tips
Verify pulley groove count, rotation direction, mounting style, and electrical connector layout before installation. This alternator uses a short mounting configuration with a plug clock position of 1 and a main mounting ear at 6 o’clock from the rear view. Confirm belt alignment and inspect the charging circuit, battery condition, and related wiring before final startup. Fits 2005-2011 Mercedes-Benz SLK55 AMG, N/A; Fits 2005-2006 Mercedes-Benz C55 AMG, N/A; Fits 2003-2006 Mercedes-Benz CLK500, N/A; Fits 2003-2006 Mercedes-Benz CLK55 AMG, N/A; Fits 2003-2005 Mercedes-Benz C320, N/A; Fits 2003-2005 Mercedes-Benz ML500, N/A.
Quality Assurance
This Bosch Premium Alternator is a new replacement unit designed, built, and tested to support dependable charging performance in the listed Mercedes-Benz applications. Bosch’s premium alternator line is focused on consistent fit and electrical reliability for service replacement use.
| Year | Make | Model | Liters | Cylinders | Fuel Type | Notes |
|---|---|---|---|---|---|---|
| 2011 | Mercedes-Benz | SLK55 AMG | 5.5L | V8 | — | Alternator (New) |
| 2010 | Mercedes-Benz | SLK55 AMG | 5.5L | V8 | — | Alternator (New) |
| 2009 | Mercedes-Benz | SLK55 AMG | 5.5L | V8 | — | Alternator (New) |
| 2008 | Mercedes-Benz | SLK55 AMG | 5.5L | V8 | — | Alternator (New) |
| 2007 | Mercedes-Benz | SLK55 AMG | 5.5L | V8 | — | Alternator (New) |
| 2006 | Mercedes-Benz | C55 AMG | 5.5L | V8 | — | Alternator (New) |
| 2006 | Mercedes-Benz | CLK500 | 5.0L | V8 | — | Alternator (New) |
| 2006 | Mercedes-Benz | CLK55 AMG | 5.5L | V8 | — | Alternator (New) |
| 2006 | Mercedes-Benz | SLK55 AMG | 5.5L | V8 | — | Alternator (New) |
| 2005 | Mercedes-Benz | C320 | 3.2L | V6 | GAS | Alternator (New) |
| 2005 | Mercedes-Benz | C55 AMG | 5.5L | V8 | — | Alternator (New) |
| 2005 | Mercedes-Benz | CLK500 | 5.0L | V8 | — | Alternator (New) |
| 2005 | Mercedes-Benz | CLK55 AMG | 5.5L | V8 | — | Alternator (New) |
| 2005 | Mercedes-Benz | ML500 | 5.0L | V8 | — | Alternator (New) |
| 2005 | Mercedes-Benz | SLK55 AMG | 5.5L | V8 | — | Alternator (New) |
| 2004 | Mercedes-Benz | C320 | 3.2L | V6 | — | Alternator (New) |
| 2004 | Mercedes-Benz | CLK500 | 5.0L | V8 | — | Alternator (New) |
| 2004 | Mercedes-Benz | CLK55 AMG | 5.5L | V8 | — | Alternator (New) |
| 2004 | Mercedes-Benz | ML500 | 5.0L | V8 | — | Alternator (New) |
| 2003 | Mercedes-Benz | C320 | 3.2L | V6 | — | Alternator (New) |
| 2003 | Mercedes-Benz | CLK500 | 5.0L | V8 | — | Alternator (New) |
| 2003 | Mercedes-Benz | CLK55 AMG | 5.5L | V8 | — | Alternator (New) |
| 2003 | Mercedes-Benz | ML500 | 5.0L | V8 | — | Alternator (New) |
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