Part #: AL4239X

Bosch AL4239X Alternator

Alternator (Remanufactured)
⚙️ 11 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Alternator (Remanufactured)
🚗Fitment: Mazda, 6 and MX-5 Miata
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Reliable Remanufactured Alternator for Mazda 6 and MX-5 Miata

The Bosch AL4239X alternator is a remanufactured electrical component designed specifically for Mazda 6 and MX-5 Miata models. Engineered to meet OEM specifications, this 12-volt alternator ensures consistent charging performance and durability for your vehicle's electrical system.

  • 12-volt electrical system compatibility
  • Internal fan type with external fan included for optimal cooling
  • Clockwise rotation direction
  • Includes pulley with 6 grooves and 55mm outside diameter
  • Internal regulator type with external regulator included
  • Aluminum case material and color for lightweight durability
  • Amperage rating of 100 amps
  • Plug type 341 with rear view main mounting ear at 6 o'clock
  • Remanufactured unit meeting original equipment standards

Detailed Bosch Alternator (Remanufactured) Product Line Information

The Bosch Alternator (Remanufactured) product line offers high-quality remanufactured alternators that restore vehicle charging systems to factory performance. Each unit undergoes rigorous testing and refurbishment to ensure reliability and longevity. The AL4239X model is part of this line, providing a cost-effective solution for Mazda 6 and MX-5 Miata owners seeking a dependable replacement alternator.

Product Features and Technical Specifications

This Bosch AL4239X alternator operates at 12 volts and features an internal fan complemented by an external fan to maintain optimal operating temperatures. The clockwise rotation direction matches the original equipment design for proper fit and function. The included pulley has six grooves (6s type) with a 55mm outside diameter, compatible with the vehicle's belt system. The alternator also includes an internal regulator and an external regulator, ensuring stable voltage output. Its aluminum case provides a lightweight yet durable housing, and the unit is rated for 100 amps, suitable for the electrical demands of Mazda 6 and MX-5 Miata models.

Compatible Vehicles and Common Applications

  • Replacement for alternator failures in Mazda 6 models
  • Suitable for charging system repairs on Mazda MX-5 Miata vehicles
  • Resolves issues related to battery not charging properly
  • Addresses dim or flickering headlights caused by alternator malfunction
  • Fixes electrical system warning lights related to charging faults

Installation Notes and Tips

When installing the Bosch AL4239X alternator, ensure the clockwise rotation direction aligns with the vehicle’s original setup. Verify the 6-groove pulley matches the belt configuration on your Mazda 6 or MX-5 Miata. Properly connect the plug type 341 and secure the rear view main mounting ear at the 6 o'clock position for correct fitment. It is recommended to inspect the battery and belt condition during installation to maintain optimal charging system performance.

Quality Assurance and Warranty

This remanufactured Bosch alternator is tested to meet original equipment manufacturer standards, ensuring reliable performance and durability. The unit comes packaged securely in a box to protect it during transport. While specific warranty details are not provided here, Bosch remanufactured alternators typically include a limited warranty covering defects in materials and workmanship.

BrandBosch
Part NumberAL4239X
PositionAlternator (Remanufactured)
Voltage12
Plug Clock Rear View Main Mounting Ear at 6 O Clock12
Plug Type341
Fan TypeInternal
Rotation DirectionClockwise
External Fan IncludedYes
One Wire CapableNo
Pulley IncludedYes
External Regulator IncludedYes
Pulley Groove Quantity6
Case ColorAluminum
Outside Pulley Diameter55
Regulator TypeInternal
Case MaterialAluminum
Amperage Rating100
Cases Per Pallet (ORLY)60
New Or RemanufacturedRemanufactured
Original Equipment Manufacturer NamesMi
PackagingBox
Pulley Type6s
Pulley Type / Belt Type (Alternator)6s
Unit(s) per Car Qty (ORLY)1

This part fits 11 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2013Mazda62.5LL4N/AAlternator (Remanufactured)
2012Mazda62.5LL4N/AAlternator (Remanufactured)
2011Mazda62.5LL4N/AAlternator (Remanufactured)
2010Mazda62.5LL4N/AAlternator (Remanufactured)
2009Mazda62.5LL4N/AAlternator (Remanufactured)
2008Mazda62.3LL4N/AAlternator (Remanufactured)
2008MazdaMX-5 Miata2.0LL4N/AAlternator (Remanufactured)
2007Mazda62.3LL4N/AAlternator (Remanufactured)
2007MazdaMX-5 Miata2.0LL4N/AAlternator (Remanufactured)
2006Mazda62.3LL4N/AAlternator (Remanufactured)
2006MazdaMX-5 Miata2.0LL4N/AAlternator (Remanufactured)

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

L3P918300

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.