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Bosch AL0170N Alternator
| Brand | Bosch AL0170N |
|---|---|
| Voltage | 14 |
| Plug Clock Rear View Main Mounting Ear at 6 O Clock | 1 |
| Fan Type | Internal |
| Rotation Direction | Clockwise |
| Pulley Included | Yes |
| Pulley Groove Quantity | 6 |
| Case Color | Aluminum |
| Outside Pulley Diameter | 50 |
| Regulator Type | Internal |
| Case Material | Aluminum |
| Amperage Rating | 140 |
| New Or Remanufactured | New |
| Original Equipment Manufacturer Names | Bo |
| Product Length | 7.283465 in |
| Pulley Type / Belt Type (Alternator) | 6s-cp |
| Product line | Alternator (New) |
| Fits | Audi and Volkswagen · 9 vehicles |
New alternator. Built and tested for dependable charging performance.
Aluminum case. Lightweight construction helps manage heat and durability.
Internal regulator. Integrated design simplifies the charging system.
Cross-references 03L903023K and 04L903024S for the same application. See all 2.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Bosch AL0170N Alternator Overview
The Bosch AL0170N is a new 14-volt alternator built for steady charging performance and dependable electrical output. It is a direct-fit replacement for select Audi and Volkswagen applications, including 2015 Volkswagen Golf, 2015 Volkswagen Golf SportWagen, 2016 Audi A3, 2018-2020 Volkswagen Atlas, and 2019-2020 Volkswagen Arteon with Bosch unit applications.
Bosch Premium Alternators are engineered, built, and tested for consistent reliability in everyday driving and demanding electrical loads. The AL0170N uses an internal regulator, internal fan, clockwise rotation, and a 6-groove pulley to match the original charging system design.
Key Features
- Part number: AL0170N
- 14-volt alternator with 140-amp output
- New unit, not remanufactured
- Internal regulator and internal fan design
- Clockwise rotation
- Includes pulley; 6-groove belt interface
- Aluminum case and aluminum case material
- Outside pulley diameter: 50 mm
- OE-style replacement for Bosch unit applications
Detailed Description
The Bosch AL0170N alternator is built for vehicles that require stable charging performance and OE-style fitment. It is designed for 14-volt electrical systems and a 140-amp amperage rating, making it a practical replacement when the original alternator is no longer maintaining proper battery charge or system voltage. The aluminum housing helps keep weight down while supporting the alternator’s internal components, and the internal regulator simplifies integration with the vehicle charging system. This part number, AL0170N, is listed for select Volkswagen Golf, Volkswagen Golf SportWagen, Volkswagen Atlas, Volkswagen Arteon, and Audi A3 applications with Bosch unit requirements.
This part cross-references Bosch OE-style applications such as 03L903023K and 04L903024S for the same application.
What This Alternator Helps Solve
- Battery warning lights caused by weak charging output
- Low system voltage during driving or idle conditions
- Dim lights or unstable electrical performance
- Charging failure from a worn or damaged alternator
- Starting issues related to insufficient battery replenishment
Installation Notes and Tips
Verify pulley style, connector orientation, and mounting configuration before installation. This alternator uses a plug clock rear view main mounting ear at 6 o’clock, clockwise rotation, and a 6S-CP pulley type, so matching the original unit is important for proper alignment and electrical connection. Confirm vehicle application by year, make, model, and Bosch unit requirement before ordering. For best results, inspect the belt condition and charging circuit connections during replacement.
Quality Assurance
Bosch Premium Alternators are built and tested to meet charging-system performance and reliability expectations for replacement use. The AL0170N is a new alternator manufactured to support consistent operation in the listed Audi and Volkswagen applications.
| Year | Make | Model | Body Type | Drive Type | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 2020 | Volkswagen | Arteon | — | — | 2.0L | L4 | N/A | with Bosch Unit; Alternator (New) |
| 2020 | Volkswagen | Atlas | — | — | 3.6L | V6 | N/A | Alternator (New) |
| 2019 | Volkswagen | Arteon | — | AWD | 2.0L | L4 | N/A | with Bosch Unit; Alternator (New) |
| 2019 | Volkswagen | Atlas | — | — | 3.6L | V6 | N/A | To 140 Amp Alternator; with Bosch Unit; Alternator (New) |
| 2018 | Volkswagen | Atlas | — | — | 3.6L | V6 | N/A | To 140 Amp Alternator; with Bosch Unit; Alternator (New) |
| 2016 | Audi | A3 | Sedan | — | 2.0L | L4 | N/A | with Bosch Unit; Alternator (New) |
| 2015 | Audi | A3 | Sedan | — | 2.0L | L4 | N/A | To 140 Amp Alternator; with Bosch Unit; Alternator (New) |
| 2015 | Volkswagen | Golf | — | — | 2.0L | L4 | N/A | Alternator (New) |
| 2015 | Volkswagen | Golf SportWagen | — | — | 2.0L | L4 | N/A | Alternator (New) |
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