12V 210A Replacement Alternator for BMW 528i and X3 3.0L L6

1. Vehicle Fitment and OE Identification

The KU-FV-03-001 is a 12 V, 210 A replacement alternator designed for compatible BMW 528i and BMW X3 models equipped with a 3.0 L inline-six engine. It corresponds to OE reference numbers 104210-6251, 7591268-01 and 12-31-7-591-271, allowing automotive distributors and repair workshops to identify the required replacement unit efficiently.

• Compatible with BMW 528i 3.0 L L6
• Compatible with BMW X3 3.0 L L6
• OE Reference: 104210-6251
• OE Reference: 7591268-01
• OE Reference: 12-31-7-591-271
• Direct-replacement installation design

2. High-Output Charging System

The alternator supplies up to 210 A of charging current for the vehicle battery, lighting, climate-control system and other onboard electrical equipment. Its regulated output supports stable electrical performance under changing engine speeds and vehicle power demands.

• 210 A Output Current: Supports vehicles with demanding onboard electrical loads.
• 12 V Electrical System: Designed for the specified vehicle charging architecture.
• Stable Power Delivery: Helps maintain consistent voltage across the vehicle electrical system.
• High-Load Support: Supplies charging power when multiple onboard systems operate simultaneously.
• BSS Regulation: Controls alternator output according to the vehicle’s charging requirements.

3. Hairpin Copper Winding

The internal hairpin winding arranges the copper conductors efficiently within the stator, supporting high electrical output in a compact alternator housing. Copper conductors provide dependable electrical conductivity and assist with heat transfer during prolonged operation.

• Hairpin Winding Structure: Supports efficient power generation and consistent charging output.
• Copper Conductors: Provide reliable electrical and thermal conductivity.
• Efficient Stator Layout: Increases conductor utilization inside the alternator.
• Thermal Performance: Supports operation under elevated engine-compartment temperatures.

4. Pulley and Bearing Assembly

The alternator is equipped with an 8-groove overrunning clutch pulley and precision bearing system. This configuration is designed to match the specified accessory-drive arrangement while supporting smooth rotor movement during changing engine speeds.

• 8-Groove Clutch Pulley: Matches the specified belt-drive configuration.
• Overrunning Mechanism: Helps manage belt movement during engine-speed changes.
• Precision Bearings: Support smooth and stable rotor operation.
• High-Temperature Lubricant: Helps protect the bearing system under engine-compartment heat.

5. Direct Replacement Design

The mounting structure, pulley configuration and electrical connections are designed for direct replacement in the listed applications. This reduces installation work for repair shops and supports efficient inventory identification for automotive electrical-parts distributors.

• No wiring modification required
• No bracket modification required
• Suitable for replacement and repair programs
• OE-number identification simplifies parts matching
• Suitable for automotive aftermarket distribution