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Bosch AL4241N Alternator
| Brand | Bosch AL4241N |
|---|---|
| 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 | 48.7 |
| Regulator Type | Internal |
| Decoupled Or Clutch Pulley | No |
| AC Service Tap | No |
| Amperage Rating | 110 |
| Mounting Type | Foot-mounted |
| Brushless | No |
| Automotive Item Weight (lbs) | 13.933215 lb |
| New Or Remanufactured | New |
| Product Length | 7.417323 in |
| Pulley Type / Belt Type (Alternator) | 6s |
| Product line | Alternator (New) |
| Fits | Mazda · 12 vehicles |
New unit. Built as a fresh replacement alternator for charging-system service.
Integrated regulation. Internal regulator and fan simplify electrical system operation.
Pulley included. Supplied with a 6-groove pulley for belt-drive compatibility.
Cross-references LF8J18300 and LFB618300 for the same application. See all 2.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Bosch New Alternator Overview
The Bosch AL4241N is a new alternator built for steady charging performance and dependable electrical output. It is a fitment-based replacement for select Mazda applications and is specified with a 14-volt system, 110-amp rating, and internal regulation.
Key Features
- New alternator with Bosch Premium Alternators engineering.
- 14-volt, 110-amp output for consistent charging performance.
- Internal fan and internal regulator for integrated operation.
- Foot-mounted design with clockwise rotation.
- Includes pulley with 6-groove belt profile.
- Negative ground configuration.
Detailed Description
Bosch AL4241N is a new charging-system component designed, built, and tested for performance and reliability. The unit uses a short mounting configuration, foot-mounted installation style, and a 6S pulley type with a 48.7 mm outside diameter. It is not one-wire capable and does not use a decoupled or clutch pulley. This alternator is a direct replacement option for select Mazda 3, Mazda 3 Sport, and Mazda 5 applications, including Fits 2010-2013 Mazda 3, N/A; Fits 2009-2013 Mazda 3 Sport, N/A; and Fits 2008-2010 Mazda 5, N/A. The Bosch AL4241N part number is also referenced as LF8J18300 and LFB618300 for the same application.
What It Is Used For
- Restoring battery charging output when the original alternator is worn.
- Addressing low-voltage or charging warning conditions.
- Replacing a noisy or failing alternator bearing assembly.
- Correcting belt-drive charging issues tied to pulley wear.
Installation Notes and Tips
Verify the mounting configuration, pulley groove count, rotation direction, and electrical connector layout before installation. Confirm the vehicle uses a negative-ground, 14-volt charging system and match the alternator to the listed fitment exactly. Professional installation and system testing after replacement are recommended.
Quality Assurance
Bosch Premium Alternators are designed, built, and tested to support reliable performance in charging-system service.
| Year | Make | Model | Body Type | Liters | Cylinders | Notes |
|---|---|---|---|---|---|---|
| 2013 | Mazda | 3 | — | 2.0L | L4 | Alternator (New) |
| 2013 | Mazda | 3 Sport | — | 2.0L | L4 | Alternator (New) |
| 2012 | Mazda | 3 | — | 2.0L | L4 | Alternator (New) |
| 2012 | Mazda | 3 Sport | — | 2.0L | L4 | Alternator (New) |
| 2011 | Mazda | 3 | — | 2.0L | L4 | Alternator (New) |
| 2011 | Mazda | 3 Sport | — | 2.0L | L4 | Alternator (New) |
| 2010 | Mazda | 3 | Sedan | 2.0L | L4 | Alternator (New) |
| 2010 | Mazda | 3 Sport | — | 2.0L | L4 | Alternator (New) |
| 2010 | Mazda | 5 | — | 2.3L | L4 | Alternator (New) |
| 2009 | Mazda | 3 Sport | — | 2.0L | L4 | Alternator (New) |
| 2009 | Mazda | 5 | — | 2.3L | L4 | Alternator (New) |
| 2008 | Mazda | 5 | — | 2.3L | L4 | Alternator (New) |
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