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Bosch AL0851N Alternator
| Brand | Bosch AL0851N |
|---|---|
| Voltage | 14 |
| Plug Clock Rear View Main Mounting Ear at 6 O Clock | 8 |
| 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 | 49.8 |
| Regulator Type | Internal |
| Decoupled Or Clutch Pulley | Yes |
| AC Service Tap | No |
| Case Material | Aluminum |
| Amperage Rating | 200 |
| Mounting Type | Foot-mounted |
| Brushless | No |
| Automotive Item Weight (lbs) | 17.725166 lb |
| New Or Remanufactured | New |
| Product Length | 7.559055 in |
| Pulley Type / Belt Type (Alternator) | 6s |
| Product line | Alternator (New) |
| Fits | Mercedes-Benz · 2 vehicles |
New alternator. Built and tested for dependable charging performance.
Aluminum case. Lightweight construction helps manage heat and durability.
Pulley included. Ready for a straightforward replacement installation.
Cross-references 0131540002 for the same application. See all 1.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Bosch AL0851N Alternator Overview
The Bosch AL0851N is a new 14-volt alternator built for charging performance and dependable electrical output. It is a direct-fit option for 2005-2006 Mercedes-Benz E320 applications and is engineered with an internal regulator, internal fan, and a 200-amp rating for demanding charging systems.
As part of Bosch Alternator (New) product line, this unit reflects Bosch’s focus on premium charging components that are built and tested for consistent operation. The AL0851N also includes a pulley and uses a foot-mounted, short mounting configuration for the specified application.
Key Features
- New Bosch alternator, part number AL0851N
- 14-volt charging system with 200-amp output
- Internal regulator and internal fan design
- Negative ground configuration
- Clockwise rotation direction
- 6-groove pulley included with decoupled clutch pulley
- Aluminum case with silver finish
- Foot-mounted, short mounting configuration
- Fits 2005-2006 Mercedes-Benz E320, N/A
Detailed Description
The Bosch AL0851N alternator is built for Mercedes-Benz E320 charging-system service where stable voltage and strong output are required. With a 14-volt design, internal regulation, and 200-amp amperage rating, this alternator supports the vehicle’s electrical demands while maintaining the correct mounting and pulley configuration for the listed application. The Bosch AL0851N is a practical replacement choice when servicing a 2005-2006 Mercedes-Benz E320 alternator application.
This part cross-references Bosch 0131540002 for the same application.
Common Problems This Part Can Address
- Low charging voltage at the battery
- Battery warning light related to alternator output
- Dim lights or unstable electrical performance
- Charging-system noise tied to alternator wear
- Failure of the original alternator to maintain proper output
Installation Notes and Tips
Verify the vehicle’s mounting style, pulley groove count, rotation direction, and electrical connector layout before installation. This alternator uses a foot-mounted, short configuration with a rear-view plug clock position of 8 o’clock and a 6-groove pulley setup. Confirm belt alignment and charging-system condition during replacement to help ensure proper operation on the Mercedes-Benz E320.
Quality Assurance
Bosch Premium Alternators are designed, built, and tested for performance and reliability. The AL0851N is a new alternator intended to meet the electrical and fitment requirements of the listed Mercedes-Benz E320 applications.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2006 | Mercedes-Benz | E320 | 3.2L | L6 | N/A | Alternator (New) |
| 2005 | Mercedes-Benz | E320 | 3.2L | L6 | N/A | Alternator (New) |
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