NGK Genuine U5041 Ignition Coil Component 48155

NGK Genuine U5041 Ignition Coil Component 48155

The NGK Genuine U5041 Ignition Coil, catalogued as part number 48155, is a high‑performance ignition component engineered to deliver reliable spark generation for a wide range of Nissan and Infiniti engines. Designed with precision engineering, this coil provides consistent voltage output, ensuring optimal combustion efficiency and engine responsiveness.

Key Features & Technical Highlights

• Brand Integrity: Manufactured by NGK, a globally recognized leader in ignition system technology.
• Model Designation: U5041 – the designation reflects NGK’s internal classification for this coil type, indicating its compatibility with specific engine families.
• Part Number: 48155 – used by OEM and aftermarket suppliers to identify the exact component.
• Voltage Output: Delivers a stable spark voltage of up to 12,000 volts, sufficient for high‑compression engines.
• Construction: Dual‑coil design with insulated windings, ensuring durability under thermal and electrical stress.
• Operating Temperature Range: -40°C to +120°C, suitable for diverse climatic conditions.
• Dimensions & Mounting: Compact footprint (approx. 3.5 in × 2.0 in) with standard SAE mounting points compatible with Nissan and Infiniti engine bays.

Engine Compatibility Matrix

The NGK U5041 / 48155 Ignition Coil is specifically engineered for the following models:

Installation Guidelines

1. Preparation: Disconnect the battery to prevent accidental electrical discharge. Remove the old ignition coil by loosening the mounting bolts and disconnecting the spark plug wire.
2. Alignment: Position the new NGK U5041 so that its mounting flange aligns with the engine block’s bolt holes. Ensure the coil’s internal terminal matches the spark plug socket orientation.
3. Securing: Tighten the mounting bolts to the manufacturer’s specified torque (typically 10–12 Nm). This prevents vibration and ensures a solid electrical connection.
4. Connection: Attach the high‑voltage spark plug wire to the coil’s terminal. Verify that the connector is seated fully and securely.
5. Testing: Reconnect the battery, start the engine, and observe for smooth idling and consistent acceleration. A properly installed coil will eliminate misfires and improve fuel economy.

Performance Benefits

• Enhanced Spark Consistency: The dual‑coil architecture delivers a uniform spark across all cylinders, reducing combustion variability.
• Improved Fuel Efficiency: Precise ignition timing leads to better fuel atomization and lower consumption.
• Reduced Emissions: Consistent combustion minimizes unburnt hydrocarbons, aiding compliance with emission standards.
• Longevity: High‑quality insulation and robust winding construction extend the coil’s service life beyond typical aftermarket alternatives.

Troubleshooting Common Issues

Maintenance Tips

• Regularly inspect the high‑voltage spark plug wire for cracks or insulation wear. Replace if damaged.
• Keep the engine bay clean to prevent dust accumulation on coil terminals.
• During routine service, check the torque of mounting bolts and re‑tighten if necessary.

Frequently Asked Questions (FAQ)

Is the NGK U5041 / 48155 compatible with all Nissan Micra II engines?

Yes, it is designed for the 1.0 L, 1.3 L, and 1.4 L 16‑valve variants of the Micra II.

Can I use this coil in an Infiniti model?

It is compatible with Infiniti engines that share the same 22448 family architecture.

What warranty does NGK provide for this component?

The product comes with a standard manufacturer’s guarantee covering defects in materials and workmanship.

How long does an NGK coil typically last?

Under normal operating conditions, the coil can last between 80,000 to 100,000 miles, depending on driving habits and maintenance.

Conclusion

The NGK Genuine U5041 Ignition Coil Component 48155 stands out as a reliable, high‑performance solution for Nissan and Infiniti engines requiring precise spark delivery. Its robust construction, proven compatibility, and superior electrical characteristics make it an ideal choice for both OEM replacements and performance upgrades. By integrating this coil into your vehicle’s ignition system, you can expect smoother engine operation, improved fuel efficiency, and reduced emissions—all hallmarks of NGK’s commitment to automotive excellence.