Product Name: BMW High-Output Alternator (Generator) 180A OE / Cross-Reference Numbers: 12318571357 / 12318614276 / 12318614277 / 12318614278 / 12318635552 / 0125812025 / 0125812026 / 12-31-8-571-357 / 12-31-8-614-276 / etc. (and related Bosch/BMW equivalents) Brand Compatibility: Bosch OEM-quality (new or premium remanufactured) – matches BMW genuine specifications Key Specifications:
- Voltage: 12V (14V charging system)
- Output Current: 180A (high-output for enhanced electrical demands)
- Pulley: 6-groove freewheel belt pulley (overrunning alternator pulley / OAP), diameter ≈49mm
- Rotation: Clockwise (CW)
- Regulator: Integrated with LIN/COM interface for BMW electronics
- Mounting: 4 mounting holes / direct bolt-on
- B+ Connection: M8
Compatible Vehicles (common applications – always verify with VIN or dealer):
- BMW 3 Series (F30/F31/F34) 340i / 340i xDrive (B58 3.0L turbo) 2016–2019
- BMW 4 Series (F32/F33/F36) 440i / 440i xDrive (B58 3.0L turbo) 2016–2020
- BMW 2 Series (F22/F23) M240i / M240i xDrive (B58 3.0L turbo) 2017–2021
- BMW 5 Series (G30/G31) 540i / 540i xDrive (B58 3.0L turbo) 2017–2023+
- Other BMW models with B58 3.0L turbo engine (e.g., select X3 G01 or export variants)
Product Highlights:
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High 180A Output — Provides robust, consistent charging to support premium features like iDrive navigation, Harman Kardon/Bowers & Wilkins audio, adaptive headlights, power seats, and turbo engine electronics without voltage drops or battery drain – ideal for high-performance turbo models.
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Exact OEM Fit — Bolt-on replacement for BMW part 12318571357 / 12318614276 / Bosch 0125812025 / 0125812026. No modifications required; fully compatible with vehicle ECU and diagnostics.
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Quiet & Durable — Freewheel pulley minimizes belt noise, wear, and vibrations for smooth, long-lasting performance in premium turbo applications.
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Premium Quality — Bosch-tested for heat endurance, overspeed, and full-load reliability to match OE standards in demanding conditions.
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Excellent Value — Genuine BMW alternators are expensive – this high-spec replacement delivers identical performance at a more competitive price.
Installation Notes:
- Professional installation recommended (engine bay access in these models).
- Inspect serpentine belt, tensioner, and battery condition before fitting.
- After installation: Clear codes with BMW diagnostic tool (e.g., ISTA) and verify charging voltage (typically 13.8–14.8V under load).
🔥 BMW 340i / 440i / M240i 180A Alternator – B58 Turbo Charging Upgrade! OE Cross: 12318571357 / 12318614276 / 0125812025 / 0125812026 – Bosch Premium Match! Perfect for 2016–2021 B58 3.0L turbo models (340i F30/F31/F34, 440i F32/F33/F36, M240i F22/F23) – ends dim lights, weak charging, or electrical strain on your luxury performance BMW!
- 180A massive high-output
- 6-groove freewheel pulley – quiet & durable
- Direct OEM replacement
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