211.39 GBP
Bosch 0986049151 Alternator
The Bosch 0986049151 Alternator is a reliable and efficient power source, providing up to 80A of current at 14V. Its sturdy construction ensures long-lasting performance, making it an excellent choice for various applications
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Bosch 0986049151 Alternator – Powering Your Vehicle with Precision
The Bosch 0986049151 Alternator is a high‑performance charging unit designed to deliver reliable electrical power for modern internal combustion engines. Engineered by Bosch, a leader in automotive technology, this alternator combines robust construction with advanced electronics to ensure consistent voltage output and longevity.
Key Features
- Output Rating: 80 A at 14 V – sufficient to support a full complement of accessories, lighting, and infotainment systems.
- Voltage Regulation: Integrated electronic regulator maintains a stable output, protecting sensitive electronics from voltage spikes.
- High Efficiency: Optimized rotor and stator design reduce internal losses, improving overall fuel economy.
- Durable Construction: Heavy‑grade steel housing and corrosion‑resistant coatings extend service life even in harsh operating environments.
- Compact Size: Designed to fit within standard engine bay layouts, making it a drop‑in replacement for many OEM models.
- Low Noise Signature: Advanced bearing technology and balanced rotor assembly minimize vibration and acoustic noise.
Compatibility Overview
The alternator is engineered to fit a wide range of light‑weight passenger vehicles, particularly those in the Ford Fiesta, Mazda 2, and related compact car families. Its mounting brackets, pulley size, and shaft dimensions are standardized to match the original equipment specifications for these models.
Installation Guide
- Disconnect the Battery: Always start by removing the negative battery terminal to prevent accidental short circuits.
- Remove the Old Alternator: Unbolt the mounting brackets, detach the drive belt, and disconnect electrical connections. Keep track of all fasteners for reuse.
- Position the New Unit: Align the Bosch alternator with the mounting points and secure it using the original bolts. Torque specifications should match OEM values.
- Reconnect Electrical Harness: Attach the high‑current connector and any auxiliary wiring. Ensure all contacts are clean and firmly seated.
- Reinstall the Drive Belt: Route the belt over the pulleys, tension it according to manufacturer guidelines, and double‑check alignment.
- Reconnect the Battery: Reattach the negative terminal and verify that all connections are tight.
- Test the System: Start the engine and observe the alternator’s output using a multimeter. The voltage should stabilize around 13.8–14.4 V with the engine running.
Maintenance Tips
- Belt Inspection: Check the drive belt for wear, cracks, or glazing every 10,000 km. Replace if necessary to avoid belt failure.
- Electrical Connections: Periodically clean terminal contacts to prevent corrosion. Use a contact cleaner and ensure no residue remains.
- Cooling System Check: Verify that the engine coolant level is adequate, as overheating can damage the alternator’s internal components.
- Load Testing: Perform a load test every 20,000 km to confirm that the alternator maintains voltage under full accessory demand.
Technical Specifications
| Parameter | Value |
|---|---|
| Output Current | 80 A |
| Operating Voltage | 14 V |
| Pole Count | 4 |
| Rotor Diameter | 120 mm (approx.) |
| Stator Diameter | 140 mm (approx.) |
| Belt Size | 10 mm × 260 mm (typical) |
| Mounting Bolt Pattern | Standard OEM (4 bolts) |
| Operating Temperature | -40 °C to +120 °C |
| Weight | 5.2 kg (approx.) |
| Material | Steel housing, aluminum stator windings |
| Regulator Type | Electronic, integrated |
| Noise Level | ≤ 70 dB(A) at idle |
Why Choose Bosch?
Bosch has a long-standing reputation for engineering excellence in the automotive sector. Their alternators are built with precision machining, rigorous quality control, and a focus on reliability. The 0986049151 model benefits from:
- Advanced Materials: High‑strength alloys reduce weight while maintaining structural integrity.
- Smart Electronics: Real‑time voltage monitoring protects the vehicle’s electrical system.
- Global Support: Extensive technical documentation and service networks worldwide.
Applications Beyond Passenger Cars
While primarily targeted at compact passenger vehicles, the Bosch 0986049151 alternator’s robust design makes it suitable for light commercial applications such as small vans, utility vehicles, and off‑road machines that require a reliable 14 V charging system.
Performance Under Load
During high‑load scenarios—such as simultaneous operation of air conditioning, infotainment, and auxiliary lighting—the alternator consistently delivers the rated 80 A without significant voltage drop. This ensures that critical systems remain operational and that battery state of charge is maintained.
Environmental Considerations
The alternator complies with ISO 14001 environmental standards, featuring low-emission manufacturing processes and recyclable components. Its efficient operation also contributes to reduced fuel consumption, aligning with global efforts to lower vehicle emissions.
Conclusion
The Bosch 0986049151 Alternator stands out as a dependable, high‑output charging solution for modern vehicles. Its blend of robust engineering, electronic regulation, and ease of installation makes it an ideal choice for anyone seeking to maintain or upgrade their vehicle’s electrical system. Whether you’re replacing a worn unit or building a new powertrain, this alternator delivers the performance and reliability that Bosch is known for.
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- Car Parts |
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| Tags | Bosch Alternator Engine alternator |
| Identifiers | |
| Brand | ![]() Bosch is a brand of power tools and appliances. The company was founded in 1886 and produces a wide range of power tools, appliances, and accessories. Bosch tools are known for their quality and durability, and the company is a leader in innovation and design. |
| MPN | Bosch 0986049151 |
| Model | Bosch 0986049151 |
| ID | 6973728 |
| Dimensions / Weight | |
| Key Features | |

