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Bosch AL3321N Alternator
| Brand | Bosch AL3321N |
|---|---|
| Voltage | 14 |
| 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 | 7 |
| Outside Pulley Diameter | 55 |
| Regulator Type | Internal |
| Decoupled Or Clutch Pulley | Yes |
| AC Service Tap | No |
| Amperage Rating | 100 |
| Mounting Type | Single pivoted lever |
| Automotive Item Weight (lbs) | 12.786811 lb |
| New Or Remanufactured | New |
| Product Length | 6.889764 in |
| Pulley Type / Belt Type (Alternator) | 7s |
| Product line | Alternator (New) |
| Fits | Scion and Toyota · 11 vehicles |
New alternator. Built and tested for dependable charging performance.
Internal regulator. Integrated regulation simplifies the charging system.
Pulley included. Ready for a more complete installation.
Cross-references 2706028321 for the same application. See all 1.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Bosch AL3321N Alternator Overview
The Bosch AL3321N is a new alternator built for steady charging performance in select Toyota and Scion applications. It is a 14-volt unit with a 100-amp rating, internal fan, internal regulator, and negative ground configuration for direct replacement service.
Compatible with 2007-2009 Toyota Camry and 2008-2015 Scion xB, this Bosch Premium Alternator is designed, built, and tested for dependable electrical output in daily driving conditions. The AL3321N also includes a pulley and external regulator, with a clockwise rotation and 7-groove belt interface.
Key Features
- Bosch Premium Alternator, part number AL3321N
- 14-volt charging system with 100-amp output
- Internal fan and internal regulator design
- Negative ground configuration
- Pulley included; 7-groove pulley type with 55 mm outside diameter
- Clockwise rotation
- Decoupled or clutch pulley included
- New alternator, not remanufactured
- Single pivoted lever mounting type with short mounting configuration
Product Details
Bosch Premium Alternators are engineered for performance and reliability through controlled manufacturing and testing. The AL3321N uses an internal regulator and internal fan layout to support stable charging output, while the 14V design and 100-amp amperage rating match the electrical demands of the listed Toyota Camry and Scion xB applications. The Bosch AL3321N is a direct-fit electrical replacement for vehicles that require a clockwise-rotating alternator with a 7S pulley setup.
This part cross-references 2706028321 for the same application.
Common Issues This Part Can Help Resolve
- Battery warning light caused by weak charging output
- Dim headlights or unstable electrical performance
- Battery not maintaining charge during normal driving
- Charging system noise related to alternator wear
- Voltage irregularities affecting vehicle electronics
Installation Notes
Verify pulley groove count, rotation direction, mounting style, and electrical connector match before installation. Confirm the vehicle uses a negative ground, 14-volt charging system and the correct belt routing for the 7-groove pulley. For best results, inspect the drive belt, tensioner, and battery condition during alternator replacement.
Quality Assurance
Bosch Premium Alternators are manufactured and tested to meet the demands of modern charging systems. The AL3321N is a new unit built for consistent electrical performance in compatible Toyota Camry and Scion xB applications.
| Year | Make | Model | Liters | Cylinders | Fuel Type | Notes |
|---|---|---|---|---|---|---|
| 2015 | Scion | xB | 2.4L | L4 | — | Alternator (New) |
| 2014 | Scion | xB | 2.4L | L4 | — | Alternator (New) |
| 2013 | Scion | xB | 2.4L | L4 | — | Alternator (New) |
| 2012 | Scion | xB | 2.4L | L4 | — | Alternator (New) |
| 2011 | Scion | xB | 2.4L | L4 | — | Alternator (New) |
| 2010 | Scion | xB | 2.4L | L4 | — | Alternator (New) |
| 2009 | Scion | xB | 2.4L | L4 | — | Alternator (New) |
| 2009 | Toyota | Camry | 2.4L | L4 | — | Alternator (New) |
| 2008 | Scion | xB | 2.4L | L4 | — | Alternator (New) |
| 2008 | Toyota | Camry | 2.4L | L4 | — | Alternator (New) |
| 2007 | Toyota | Camry | 2.4L | L4 | GAS | Alternator (New) |
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