12v 70a Alternator For Mercedes 190 200 Series
2、Compatibility: Fits OEM numbers 0120489321, 0120489322, 0120489325, 0120489326, 0120489327, 0120489328, 0120489329, 0120489330, 0120489359, 0986033720, 0986033730, 0986033810, 0986033811, 0986034060, CA345IR, 1-1352-01BO, 14820N, 0071543102, 0071545302, 0071545402, 0071545502, 0071545602, 0081542002, A0071543102, A0071545302, A007154540287, A0071545502, A0071545502, A007154550280, A00715455602, A0081548702, A008154870280.
3、Performance: 12V 70A alternator with 6PK pulley and 55mm diameter for stable charging and reliable power supply.
4、Reliability: Durable design ensures long-lasting performance comparable to original equipment.
5、Quality: Made by XITU with 100% brand-new, high-quality components.
- Product Description
12V 70A Alternator For Mercedes 190 200 Series - Premium Quality Replacement
For steady power, this 12v 70a Alternator For Mercedes 190 200 Series performs well. Wuxi Xitu Industry and Trade Co., Ltd. manufactures this premium alternator with IATF 16949 quality requirements and 20 years of automotive electrical experience. For demanding applications, its high-temperature Class H copper windings and precision-balanced rotors at 18,000 RPM assure 70-ampere output. Our 20,000 m² facility uses 50+ modern testing equipment to validate each unit via full-load output and thermal endurance cycles. An integrated voltage regulator sustaining 14.2V-14.8V and superior sealed bearings make this alternator OEM-reliable for your antique Mercedes.
Wide Vehicle Compatibility
Mercedes-Benz models spanning many models use this alternator. Fits vintage 190 and 200 series platforms well.
0120489321, 0120489322, 0120489325, 0120489326, 0120489327, 0120489328, and others are OEM part numbers your alternator replaces. The suitable item for your Mercedes model is guaranteed by this broad compatibility.
Both petrol M102 and diesel OM601/OM602 engines work with our alternator. The brackets can be mounted horizontally or vertically, allowing for engine compartment arrangement flexibility.

Technical Specifications
Our products meets exacting technical standards for professional applications:
| Parameter | Specification |
|---|---|
| Voltage Output | 12V |
| Current Capacity | 70 Amperes |
| Regulator Voltage | 14.2V - 14.8V |
| Pulley Configuration | 6PK, 55mm diameter |
| Maximum Rotor Speed | 18,000 RPM |
| Winding Material | Class H Copper Wire (180°C rated) |
| Housing Material | Die-cast Aluminum |
| Bearing Type | Premium Sealed (SKF/NSK grade) |
| Rectifier | Heavy-duty 6-8 diode bridge |
| Protection Level | Fully sealed, dust & water resistant |
| Quality Certification | ISO 9001, IATF 16949 |
| Warranty Period | 6 Months |
Superior Performance Features
Your charging system needs more than basic functionality. Our alternator delivers advanced technical advantages specifically engineered for Mercedes vehicles.
The high-efficiency stator winding design maximizes electrical output while minimizing heat generation. This means your alternator runs cooler during extended highway drives or stop-and-go city traffic.
Precision digital rotor balancing eliminates vibration-induced stress on your engine's accessory belt system. You'll experience quieter operation and extended bearing life compared to economy alternatives.
The heavy-duty rectifier bridge with high-performance diodes effectively smooths AC current output. This protects your vehicle's sensitive electronics and extends battery service life through consistent voltage delivery.

Proven Manufacturing Excellence
Wuxi Xitu's manufacturing capabilities ensure every 12v 70a Alternator For Mercedes 190 200 Series meets international quality benchmarks. Our 500,000+ annual production capacity supports both OEM partnerships and aftermarket distribution channels worldwide.
Each unit undergoes comprehensive testing protocols before leaving our facility. Full-load output verification confirms sustained 70A delivery at 6,000 alternator RPM without thermal degradation.
Ripple voltage analysis validates proper current smoothing to protect classic ECU and fuel injection components. Salt spray testing per ASTM B117 standards ensures your alternator withstands harsh environmental exposure.
Our endurance heat cycle testing simulates over 500 hours of continuous operation at 100°C. This guarantees internal voltage regulator stability during prolonged idling in demanding summer conditions.
Multiple Application Scenarios
Classic vehicle restoration projects benefit from the period-correct appearance combined with modern charging reliability. You can confidently upgrade to H4 halogen lighting systems without overwhelming your electrical capacity.
Fleet maintenance operations appreciate the consistent performance in heritage taxi services. The 70A output handles continuous cycling of communication equipment and frequent engine restarts in urban environments.
Extreme climate operation demands special attention to cold-start capability. Our alternator's calibrated internal regulator compensates for temperature-induced voltage variations, ensuring reliable cranking power for diesel variants in sub-zero conditions.

Rigorous Quality Assurance Process
Your investment deserves protection through systematic quality control measures. We implement multiple inspection stages to eliminate defects before shipping.
Digital balancing equipment verifies rotor precision to prevent premature housing damage. Each alternator passes through automated electrical testing to confirm voltage regulation accuracy across the entire RPM range.
Physical measurements verify pulley alignment to OE specifications, ensuring proper belt tracking on your Mercedes engine. This prevents accelerated wear on both the belt and alternator bearings.
Our 6-month warranty covers any non-human-induced quality issues with professional service or replacement. This demonstrates our confidence in manufacturing excellence backed by decades of industry experience.

FAQ
Q: Can this 70A alternator replace my 55A stock unit?
A: Yes. Modern accessories may use more power without hurting your 12V system by upgrading from 55A to 70A. The products provides more headroom for heated seats, improved audio systems, and auxiliary lights while regulating voltage.
Q: Does this item have an internal or external voltage regulator?
A: Our latest manufacturing has an integrated internal regulator for easier installation. This design simplifies external wiring and reduces charging circuit failure sites, improving system dependability.
Q: How do I align pulleys during installation?
A: Professional installers employ laser alignment instruments to check belt tracking on our precision-machined modules to OE offsets. Alignment prolongs alternator life and reduces bearing wear.
Q: Why does the idle battery warning light flicker?
A: This symptom usually indicates belt strain or grounding resistance in older wire harnesses, not alternator failure. The 70A output capacity is sufficient; check mechanical connections and belt condition for best performance.
Q: Is this compatible with Mercedes diesel and petrol models?
A: Fuel kinds have equal electrical specs. Due to mounting lug differences between 190 and 200 series applications, M102 petrol engines and OM601 diesel versions must be checked for bracket design compatibility.
Professional Packaging Standards
Every alternator ships in custom-designed protective packaging to prevent damage during international transit. Multi-layer foam inserts secure the unit against vibration and impact.
Moisture-resistant outer cartons with handling labels ensure proper warehouse storage. Complete installation documentation accompanies each unit, including torque specifications and electrical connection diagrams.
Contact Us
Ready to restore peak electrical performance to your Mercedes with 12v 70a Alternator For Mercedes 190 200 Series? Contact our technical team at arisa@xitu-auto.com for immediate assistance.

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