
Need to rebuild your vehicle's alternator? This premium rebuild kit is engineered to meet or exceed original factory specs, ensuring a perfect fit and long-lasting charging performance.
🚗 Vehicle Application Details
- BMW Z3: L4 1.9L (1996-1998) - with 90 Amp Bosch Alternator
🔍 Cross-Reference Alternator Assemblies (Fits These Units)
- BMW OEM: 12-31-1-247-487, 12-31-1-247-488, 12311247288, 12311247310, 12311247488
- Bosch: 0 123 320 012, 0-123-320-012, 0123320012, 0986040380
- Bosch Aftermarket: AL0736X (Reman)
- ACDelco: 334-2031
- Remy: 13311
- Lester: 13733
📐 Component-Specific Technical Data
⚡ Voltage Regulator with Brushes Specs
- Technical Specifications: 14.3 Voltage Set Point, A-Circuit, Ignition Activation
- Replaces OEM: BMW 12-31-1-247-892, 12-31-1-730-604, 12-31-1-739-365, 12-31-1-747-920, 12-31-7-739-365, 12311247892, 12311730604, 12311739365, 12311747920, 12317739365 | Bosch 1197311212, 1197311214, 1197311220, 1197311221, 1197311222, 1197311223, 1197311225, 1197311227, 1197311228, 1197311229, 1197311232, 1197311233, 1197311235, 1197311237, 1197311238, 1197311241, 1197311519, 1197311521, 1197311522, 1197311527, 1197311528, 1197311540, 1987237076
- Aftermarket Crossover: IB385
⚡ Slip Ring Specs
- Design: Designed for Bosch Type Alternators
- Dimensions: 7.1mm ID x 16.1mm OD x 52mm L
- Interchange Numbers: Bosch 1124303007, F00M143019, 7120202, 313-24002, 28-91852
⚡ Drive End DE Bearing (Front) Specs
- Industry Number: 54700 / 6303-2RS
- Dimensions: 17mm ID x 47mm OD x 14mm W
- Interchange Numbers: 1120905533, 6-303-4W
⚡ SRE Rotor Bearing (Rear) Specs
- Industry Number: 54000 / 6203-2RS
- Dimensions: 17mm ID x 40mm OD x 12mm W
- Interchange Numbers: 1120905525, 6-203-4W
⚡ Bearing Tolerance Ring Specs
- Design: SRE Bearing Mounting Bushing / Tolerance Ring
- Dimensions: 40.3mm ID x 42.8mm OD x 16.6mm W
- Interchange Numbers: 1120591103, 46-91552
❤️ Our Worry-Free Promise
Because automotive electrical parts are highly specific, we want you to buy with total confidence. If you tear down your alternator and realize you need a different size or configuration, don't sweat it. We offer easy, no-hassle returns and fast refunds. We are here to help your DIY build succeed!