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Bosch AL4242X Alternator
| Brand | Bosch AL4242X |
|---|---|
| Voltage | 12 |
| Plug Clock Rear View Main Mounting Ear at 6 O Clock | 2 |
| Fan Type | Internal |
| Rotation Direction | Clockwise |
| One Wire Capable | No |
| Pulley Included | Yes |
| Pulley Groove Quantity | 6 |
| Case Color | Aluminum |
| Outside Pulley Diameter | 52.5 |
| Regulator Type | Internal |
| Case Material | Aluminum |
| Amperage Rating | 110 |
| New Or Remanufactured | Remanufactured |
| Original Equipment Manufacturer Names | Mi |
| Pulley Type / Belt Type (Alternator) | 6s |
| Product line | Alternator (Remanufactured) |
| Fits | Mazda · 5 vehicles |
Remanufactured design. Built for charging-system replacement with Bosch testing and application-specific fitment.
110-amp output. Provides the electrical capacity specified for this alternator application.
Pulley included. Features a 6-groove pulley and internal regulator configuration.
Cross-references PE0718300 for the same application. See all 1.
Product Overview
Bosch AL4242X is a remanufactured 12-volt alternator built for charging-system replacement where internal regulation and a clockwise rotation are required. It includes a pulley and delivers 110 amps for steady electrical output.
Compatible with Mazda 3 and Mazda 3 Sport applications, this Bosch alternator is a direct-fit charging component for vehicles listed in the fitment data. The AL4242X part number is also referenced as PE0718300 for the same application.
Key Features
- Remanufactured Bosch alternator with 12-volt output
- 110-amp amperage rating for charging-system service
- Internal fan and internal regulator design
- Includes a 6-groove pulley with 52.5 mm outside diameter
- Aluminum case construction with clockwise rotation
Detailed Description
Bosch AL4242X is an alternator assembly engineered for vehicles that use a 6-rib belt drive and internal voltage regulation. The remanufactured design, aluminum housing, and internal fan support consistent charging performance in the electrical system. For Mazda 3 and Mazda 3 Sport models listed below, AL4242X provides the specified fitment and electrical configuration.
Bosch’s Alternator (Remanufactured) line focuses on charging components that are built, tested, and restored to meet application requirements. If you are replacing a worn alternator on a Mazda 3 or Mazda 3 Sport, this unit matches the listed mounting and connector configuration for the covered vehicles.
What It Is Used For
- Restoring battery charging output when the alternator is no longer maintaining system voltage
- Replacing a unit with internal regulation and clockwise rotation requirements
- Addressing charging warnings, dim lights, or electrical instability tied to alternator wear
- Servicing vehicles that use a 6-groove pulley belt drive
- Replacing a remanufactured alternator specified for the listed Mazda applications
Installation Notes and Tips
Fits 2012-2013 Mazda 3, N/A. Fits 2011-2013 Mazda 3 Sport, N/A. Verify pulley style, connector orientation, and mounting-ear configuration before installation. Confirm the vehicle uses a 12-volt, internally regulated alternator with clockwise rotation and a 6-groove belt interface.
Quality Assurance
Bosch Premium Alternators are designed, built, and tested for performance and reliability. This AL4242X alternator is remanufactured to meet the listed application requirements and cross-references PE0718300 for the same application.
| Year | Make | Model | Liters | Cylinders | Notes |
|---|---|---|---|---|---|
| 2013 | Mazda | 3 | 2.0L | L4 | Alternator (Remanufactured) |
| 2013 | Mazda | 3 Sport | 2.0L | L4 | Alternator (Remanufactured) |
| 2012 | Mazda | 3 | 2.0L | L4 | Alternator (Remanufactured) |
| 2012 | Mazda | 3 Sport | 2.0L | L4 | Alternator (Remanufactured) |
| 2011 | Mazda | 3 Sport | 2.0L | L4 | Alternator (Remanufactured) |
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