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Bosch AL66X Alternator
Reliable Remanufactured Alternator for Mercedes-Benz Models
The Bosch AL66X Alternator (Remanufactured) is designed to provide dependable electrical charging performance for select Mercedes-Benz vehicles. Engineered to meet OEM specifications, this 12-volt alternator is compatible with Mercedes-Benz 190E, 300E, 300SE, 300SEL, and 300TE models, ensuring a precise fit and reliable operation.
- 12-volt electrical system compatibility
- External fan type with included external fan for optimal cooling
- Clockwise rotation direction for proper engine alignment
- Includes pulley with 6 grooves and 55mm outside diameter
- Internal regulator type with external regulator included
- Amperage rating of 80 amps for consistent power output
- Aluminum case material and color for durability and heat dissipation
- Plug type 381 with rear view main mounting ear positioned at 6 o'clock
- Remanufactured to meet Bosch quality standards
About the Bosch Alternator (Remanufactured) Product Line
The Bosch Alternator (Remanufactured) line offers high-quality, factory-tested alternators that have been restored to meet original equipment manufacturer standards. This product line focuses on delivering reliable electrical charging components with verified performance, making it a practical choice for maintaining or restoring the charging system in Mercedes-Benz vehicles. The AL66X alternator benefits from this rigorous remanufacturing process, ensuring consistent amperage output and durability.
Detailed Product Description
The Bosch AL66X alternator features a 12-volt system designed specifically for Mercedes-Benz 190E, 300E, 300SE, 300SEL, and 300TE models. It includes an external fan to enhance cooling efficiency, which is critical for maintaining optimal operating temperatures during engine operation. The clockwise rotation direction aligns with the engine’s mechanical setup, while the included pulley with six grooves and a 55mm diameter supports proper belt engagement. The alternator’s aluminum case provides lightweight strength and effective heat dissipation. Additionally, the internal regulator type combined with an external regulator included ensures stable voltage regulation under varying electrical loads. The plug type 381 and mounting ear positioned at 6 o’clock facilitate straightforward installation and secure fitment.
Common Applications and Issues Addressed
- Replacement for failing or weak alternators in Mercedes-Benz 190E, 300E, 300SE, 300SEL, and 300TE
- Resolves battery charging problems and electrical system malfunctions
- Addresses overheating issues related to alternator cooling inefficiency
- Fixes pulley or belt slippage due to worn or damaged alternator pulleys
- Corrects voltage regulation faults caused by defective internal or external regulators
Installation Notes and Tips
- Verify compatibility with your specific Mercedes-Benz model and engine configuration before installation
- Ensure the alternator pulley grooves match the vehicle’s belt type (6 grooves)
- Check the rotation direction to confirm it is clockwise for proper engine alignment
- Inspect wiring harness and plug type 381 for secure electrical connections
- Follow manufacturer torque specifications for mounting bolts and pulley installation
Quality Assurance and Warranty
This Bosch AL66X alternator is remanufactured to meet stringent quality standards, ensuring reliable performance and durability. The aluminum case and included external fan contribute to long service life by maintaining proper operating temperatures. While specific warranty details are not provided here, Bosch remanufactured alternators typically come with a limited warranty covering defects in materials and workmanship. Always consult the product documentation or supplier for exact warranty terms.
| Brand | Bosch |
| Part Number | AL66X |
| Position | Alternator (Remanufactured) |
| Amperage Rating | 80 |
| Case Color | Aluminum |
| Case Material | Aluminum |
| Cases Per Pallet (ORLY) | 100 |
| 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 | 55 |
| Packaging | Box |
| Plug Clock Rear View Main Mounting Ear at 6 O Clock | 10 |
| Plug Type | 381 |
| Pulley Groove Quantity | 6 |
| Pulley Included | Yes |
| Pulley Type | 6S |
| Pulley Type / Belt Type (Alternator) | 6S |
| Regulator Type | Internal |
| Rotation Direction | Clockwise |
| Unit(s) per Car Qty (ORLY) | 1 |
| Voltage | 12 |
This part fits 19 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1993 | Mercedes-Benz | 190E | 2.6L | L6 | N/A | To 80 Amp Alternator; Alternator (Remanufactured) |
| 1993 | Mercedes-Benz | 300E | 3.0L | L6 | N/A | To 80 Amp Alternator; Alternator (Remanufactured) |
| 1993 | Mercedes-Benz | 300TE | 3.0L | L6 | N/A | To 80 Amp Alternator; Alternator (Remanufactured) |
| 1992 | Mercedes-Benz | 190E | 2.6L | L6 | N/A | To 80 Amp Alternator; Alternator (Remanufactured) |
| 1992 | Mercedes-Benz | 300E | 3.0L | L6 | N/A | To 80 Amp Alternator; Alternator (Remanufactured) |
| 1992 | Mercedes-Benz | 300E | 2.6L | L6 | N/A | To 80 Amp Alternator; Alternator (Remanufactured) |
| 1992 | Mercedes-Benz | 300TE | 3.0L | L6 | N/A | To 80 Amp Alternator; Alternator (Remanufactured) |
| 1991 | Mercedes-Benz | 190E | 2.6L | L6 | N/A | To 80 Amp Alternator; Alternator (Remanufactured) |
| 1991 | Mercedes-Benz | 300E | 3.0L | L6 | N/A | To 80 Amp Alternator; Alternator (Remanufactured) |
| 1991 | Mercedes-Benz | 300E | 2.6L | L6 | N/A | To 80 Amp Alternator; Alternator (Remanufactured) |
| 1991 | Mercedes-Benz | 300SE | 3.0L | L6 | N/A | To 80 Amp Alternator; Alternator (Remanufactured) |
| 1991 | Mercedes-Benz | 300SEL | 3.0L | L6 | N/A | To 80 Amp Alternator; Alternator (Remanufactured) |
| 1991 | Mercedes-Benz | 300TE | 3.0L | L6 | N/A | To 80 Amp Alternator; Alternator (Remanufactured) |
| 1990 | Mercedes-Benz | 190E | 2.6L | L6 | N/A | To 80 Amp Alternator; Alternator (Remanufactured) |
| 1990 | Mercedes-Benz | 300E | 3.0L | L6 | N/A | To 80 Amp Alternator; Alternator (Remanufactured) |
| 1990 | Mercedes-Benz | 300E | 2.6L | L6 | N/A | To 80 Amp Alternator; Alternator (Remanufactured) |
| 1990 | Mercedes-Benz | 300SE | 3.0L | L6 | N/A | To 80 Amp Alternator; Alternator (Remanufactured) |
| 1990 | Mercedes-Benz | 300SEL | 3.0L | L6 | N/A | To 80 Amp Alternator; Alternator (Remanufactured) |
| 1990 | Mercedes-Benz | 300TE | 3.0L | L6 | N/A | To 80 Amp Alternator; Alternator (Remanufactured) |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.