Product Name: Mercedes-Benz High-Output Alternator (Generator) 220A OE / Cross-Reference Numbers: A0141541002 / 0141541002 / A014154100280 / FG23S021 / FGN23S021 / 439689 / 440274 / LRA03388 / LRA3388 / 11581 / 11281N / ALT14430 / etc. (and related Valeo/Mercedes equivalents) Brand Compatibility: Valeo OEM-quality (new or premium remanufactured) – matches Mercedes genuine specifications Key Specifications:
- Voltage: 12V (14V charging system)
- Output Current: 220A (high-output for demanding luxury systems)
- Pulley: 6-groove freewheel belt pulley (overrunning alternator pulley / OAP / clutch pulley), diameter ≈ approx. 55-60mm range
- Rotation: Clockwise (CW)
- Regulator: IR/IF (Internal Regulator / Internal Fan) with compatibility for Mercedes electronics
- Mounting: 4 mounting holes / direct bolt-on
- B+ Connection: M8
Compatible Vehicles (common applications – always verify with VIN or dealer; high-output variant):
- Mercedes-Benz S550 / S500 CGI / BlueEFFICIENCY (W221) 2011–2013 (4.7L V8 biturbo M278)
- Mercedes-Benz CL550 / CL500 (C216) 2011–2014 (4.7L V8 biturbo M278)
- Other Mercedes models with M278 4.7L V8 biturbo engine in high-output configs (e.g., select S-Class / CL-Class variants)
Product Highlights:
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High 220A Output — Provides robust, consistent charging to support premium features like adaptive suspension, Burmester audio, navigation, power seats, LED/multibeam lighting, and electronics without voltage drops or battery drain – ideal for luxury models with added electrical demands.
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Exact OEM Fit — Bolt-on replacement for Mercedes part A0141541002 / Valeo FG23S021 / 439689. No modifications required; fully compatible with vehicle ECU and diagnostics.
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Quiet & Durable — Freewheel clutch pulley reduces belt noise, wear, and vibrations for smooth, long-lasting performance in premium applications.
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Premium Quality — Valeo-tested for heat endurance, overspeed, and full-load reliability to match OE standards in demanding conditions.
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Excellent Value — Genuine Mercedes alternators are expensive – this high-spec replacement delivers identical performance at a more competitive price.
Installation Notes:
- Professional installation recommended (tight engine bay in these models).
- Inspect serpentine belt, tensioner, and battery condition before fitting.
- After installation: Clear codes with Mercedes diagnostic tool and verify charging voltage (typically 13.8–14.8V under load).
🔥 Mercedes S550 / CL550 220A Alternator – Luxury V8 Charging Upgrade! OE Cross: A0141541002 / FG23S021 / 439689 / 440274 – Valeo Premium Match! Perfect for 2011–2014 S550 (W221) & CL550 (C216) with 4.7L V8 biturbo – ends dim lights, weak charging, or electrical strain on your high-end Mercedes!
- 220A massive high-output
- 6-groove freewheel pulley – quiet & durable
- Direct OEM replacement
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