Product Name: BMW / MINI High-Output Alternator (Generator) 150A OE / Cross-Reference Numbers: 12317640131 / 7640131 / 12317640132 / 12317640875 / 1042118180 / 1042118181 / 1042118182 / 1042118183 / LRA03979 / LRA3979 / ALN1128AN / ALN1128GB / etc. (and related Denso/BMW/MINI equivalents) Brand Compatibility: Denso OEM-quality (new or premium remanufactured) – matches BMW/MINI genuine specifications Key Specifications:
- Voltage: 12V (14V charging system)
- Output Current: 150A (high-output for enhanced electrical demands)
- Pulley: 6-groove freewheel belt pulley (overrunning alternator pulley / OAP), diameter ≈ approx. 50-55mm range
- Rotation: Clockwise (CW)
- Regulator: IR/IF (Internal Regulator / Internal Fan) with LIN/COM interface for BMW/MINI electronics
- Mounting: 4 mounting holes / direct bolt-on
- B+ Connection: M8
Compatible Vehicles (common applications – always verify with VIN or dealer):
- BMW 1 Series (F20/F21) 118d / 120d / 125d (B47 diesel) 2015–2019
- BMW 2 Series Active/Gran Tourer (F45/F46) 218d / 220d (B47) 2015–2020
- BMW 3 Series (F30/F31/F34) 318d / 320d (B47) 2015–2019
- BMW X1 (F48) 18d / 20d (B47) 2015–2020
- MINI Hatchback / Clubman / Countryman / Convertible (F55/F54/F56/F57/F60) Cooper / Cooper S / JCW (B38 petrol or B47 diesel select) 2015–2020
- Other BMW/MINI models with B47 2.0L diesel or B38 1.5L/2.0L petrol engines
Product Highlights:
-
Reliable 150A Output — Ensures consistent charging for modern features like iDrive/navigation, Harman Kardon audio, adaptive headlights, power seats, start-stop, and turbo engine electronics without voltage drops or battery drain.
-
Exact OEM Fit — Bolt-on replacement for BMW/MINI part 12317640131 / Denso 1042118181 / 1042118182. No modifications required; fully compatible with vehicle ECU and diagnostics.
-
Quiet & Durable — Freewheel pulley minimizes belt noise, wear, and vibrations for smooth, long-lasting performance in premium compact applications.
-
Premium Quality — Denso-tested for heat endurance, overspeed, and full-load reliability to match OE standards in demanding conditions.
-
Excellent Value — Genuine BMW/MINI alternators are expensive – this high-spec replacement delivers identical performance at a more competitive price.
Installation Notes:
- Professional installation recommended (engine bay access varies by model).
- Inspect serpentine belt, tensioner, and battery condition before fitting.
- After installation: Clear codes with BMW/MINI diagnostic tool (e.g., ISTA/INPA) and verify charging voltage (typically 13.8–14.8V under load).
🔥 BMW 1/3 Series / MINI Cooper 150A Alternator – Turbo Diesel/Petrol Charging Fix! OE Cross: 12317640131 / 7640131 / 1042118181 / 1042118182 – Denso Premium Match! Perfect for 2015–2020 B47/B38 models (1 Series F20/F21, 3 Series F30/F31, X1 F48, MINI F55/F56/F57/F60) – ends dim lights, weak charging, or electrical strain on your efficient BMW/MINI!
- 150A high-output charging
- 6-groove freewheel pulley – quiet & durable
- Direct OEM replacement
EN
