Bosch AL0703X Alternator

Reliable Remanufactured Alternator for BMW Models

The Bosch AL0703X Alternator (Remanufactured) is designed to provide dependable electrical charging and starting performance for a range of BMW vehicles. Engineered to meet OEM specifications, this 12-volt alternator ensures consistent power delivery and durability for your BMW 3 Series, 5 Series, X5, and Z3 models.

• Voltage: 12V for standard automotive electrical systems
• Amperage Rating: 120 amps to support vehicle electrical demands
• Rotation Direction: Clockwise for proper engine compatibility
• Pulley Included: Yes, with 6 grooves (6s type) and 50mm outside diameter
• Internal Fan Type with internal regulator for efficient cooling and voltage control
• Plug Type: 335 with 2 plug clock rear view main mounting ear at 6 o'clock
• Case Material and Color: Durable aluminum construction in aluminum finish
• External Regulator Included: Yes, integrated for simplified installation

About the Bosch Alternator (Remanufactured) Product Line

The Bosch Alternator (Remanufactured) line offers high-quality remanufactured alternators that meet strict OEM standards. Each unit undergoes comprehensive testing and refurbishment to restore performance and reliability. This product line focuses on providing cost-effective alternatives to new parts without compromising on durability or fitment, making it a practical choice for maintaining BMW electrical systems.

Detailed Product Description

The AL0703X alternator is specifically engineered for BMW vehicles including the 320i, 323Ci, 323i, 325Ci, 325i, 325xi, 328Ci, 328i, 330Ci, 330i, 330xi, 525i, 528i, 530i, X5, and Z3 models. Its 120-amp output supports the electrical load of modern BMWs, ensuring stable battery charging and reliable engine starting. The internal fan and regulator design optimize cooling and voltage regulation, while the included 6-groove pulley matches factory belt configurations. The aluminum case provides lightweight strength and corrosion resistance, contributing to long service life.

Common Issues Addressed by This Alternator

• Battery not charging or slow battery drain
• Dim or flickering headlights and dashboard lights
• Electrical system warning lights illuminated on the dashboard
• Engine stalling or difficulty starting due to insufficient power
• Unusual noises from the alternator pulley or bearings

Installation Notes and Tips

• Ensure compatibility with your specific BMW model and engine variant before installation
• Disconnect the battery before removing the old alternator to prevent electrical shorts
• Verify the pulley groove count and size match your vehicle’s belt system
• Check wiring harness plug type (335) and mounting ear position for proper fit
• Test the charging system after installation to confirm correct operation

Quality Assurance and Warranty

This Bosch AL0703X remanufactured alternator is built to meet or exceed OEM standards, backed by Bosch’s rigorous quality control processes. Each unit is tested for electrical output, mechanical integrity, and durability. While specific warranty details may vary, Bosch remanufactured alternators typically include a limited warranty covering defects in materials and workmanship to provide confidence in your purchase.