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Bosch AL3319N Alternator
| Brand | Bosch AL3319N |
|---|---|
| Voltage | 14 |
| Plug Clock Rear View Main Mounting Ear at 6 O Clock | 12 |
| 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 |
| Outside Pulley Diameter | 57 |
| Terminal Quantity | 4 |
| Regulator Type | Internal |
| Decoupled Or Clutch Pulley | No |
| AC Service Tap | No |
| Amperage Rating | 130 |
| Mounting Type | Single pivoted lever |
| Automotive Item Weight (lbs) | 12.345887 lb |
| New Or Remanufactured | New |
| Product Length | 6.259843 in |
| Pulley Type / Belt Type (Alternator) | 6s |
| Product line | Alternator (New) |
| Fits | Lexus · 13 vehicles |
New construction. Built as a fresh alternator assembly for charging-system replacement.
14-volt output. Provides 130 amps with internal regulation for stable electrical performance.
Pulley included. Supplied with a six-groove pulley for belt-drive service.
Cross-references 2706050280 for the same application. See all 1.
Overview
Bosch AL3319N is a new alternator built for charging-system replacement on select Lexus applications. It is a 14-volt unit with a 130-amp rating, internal regulation, and a pulley included for a complete service-ready assembly.
Key Features
- 14-volt alternator with 130-amp output
- Internal fan and internal regulator design
- Six-groove pulley included
- Clockwise rotation with negative ground
- New construction for charging-system service
Detailed Description
The Bosch AL3319N alternator is engineered as a new replacement unit for charging-system repair on the Lexus SC430 and Lexus LS430. Bosch AL3319N uses a short mounting configuration, single pivoted lever mounting type, and a 4-terminal layout with a rear plug clock position at 6 o’clock. The unit also includes an external regulator and a 57 mm pulley diameter, giving technicians the core components needed for a direct alternator replacement on the specified applications.
Bosch’s Alternator (New) line focuses on new-build charging components rather than remanufactured units, with design and testing centered on performance and reliability. This part cross-references 2706050280 for the same application.
What It Is Used For
- Restoring battery charging output when the alternator is no longer maintaining system voltage
- Addressing warning lights related to charging-system faults
- Replacing a worn or noisy alternator assembly
- Correcting belt-drive issues tied to pulley wear or mismatch
Installation Notes and Tips
Compatible With 2002-2010 Lexus SC430, alternator; and 2001-2004 Lexus LS430, alternator. Verify the 6-groove pulley, clockwise rotation, 14-volt system, and 4-terminal connector layout before installation. Confirm the mounting configuration and plug clock position match the original unit to ensure proper fitment. Bosch AL3319N should be matched to the vehicle’s charging-system specifications during replacement.
Quality Assurance
Bosch Premium Alternators are designed, built, and tested to deliver dependable performance and reliability. Bosch AL3319N is a new alternator, not remanufactured.
| Year | Make | Model | Liters | Cylinders | Notes |
|---|---|---|---|---|---|
| 2010 | Lexus | SC430 | 4.3L | V8 | Alternator (New) |
| 2009 | Lexus | SC430 | 4.3L | V8 | Alternator (New) |
| 2008 | Lexus | SC430 | 4.3L | V8 | Alternator (New) |
| 2007 | Lexus | SC430 | 4.3L | V8 | Alternator (New) |
| 2006 | Lexus | SC430 | 4.3L | V8 | Alternator (New) |
| 2005 | Lexus | SC430 | 4.3L | V8 | Alternator (New) |
| 2004 | Lexus | LS430 | 4.3L | V8 | Alternator (New) |
| 2004 | Lexus | SC430 | 4.3L | V8 | Alternator (New) |
| 2003 | Lexus | LS430 | 4.3L | V8 | Alternator (New) |
| 2003 | Lexus | SC430 | 4.3L | V8 | Alternator (New) |
| 2002 | Lexus | LS430 | 4.3L | V8 | Alternator (New) |
| 2002 | Lexus | SC430 | 4.3L | V8 | Alternator (New) |
| 2001 | Lexus | LS430 | 4.3L | V8 | Alternator (New) |
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