NGK Ignition Coil - 48142

This NGK ignition coil is engineered to provide reliable performance and optimal combustion for yo...

Best current price£19.56from The Green Spark Plug Company

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Product Information

Full details

The NGK Ignition Coil 48142 is designed for vehicle owners and DIY mechanics looking to restore or maintain optimal engine combustion. This component offers a high-reliability solution for addressing misfires and engine hesitation by ensuring a consistent spark; however, users must verify engine compatibility with their specific vehicle make and model before installation, as incorrect fitment can lead to poor performance.

All features

Model Part Number48142
BrandNGK

Extended Product Information

FAQs

Do I need to replace all ignition coils at once?

While it is not mandatory, replacing all coils is recommended if the vehicle has high mileage, as other coils of the same age may fail soon after the first.

How do I know if the ignition coil is the cause of my engine issue?

The most common indicator is a diagnostic trouble code (DTC) in the P0300-P0308 range, which indicates a cylinder-specific misfire.

Is any specialized maintenance required for this coil?

No, it is a maintenance-free component. Ensure the area around the coil remains dry and free of oil leaks from the valve cover gasket.

Can I use dielectric grease during installation?

Yes, applying a small amount of dielectric grease inside the rubber boot can help prevent moisture corrosion and make future removal easier.

What happens if I use an incompatible coil?

An incompatible coil may have different electrical resistance values, which can lead to poor engine performance, damage to the engine control unit (ECU), or failure to start.

Troubleshooting

Engine continues to misfire after installation

Check that the spark plug wire or boot is fully seated and that the electrical connector is clicked into the locked position.

Coil fails shortly after installation

Inspect the spark plugs for wear or excessive gaps, as faulty plugs can force the ignition coil to overwork and overheat.

Pros and Cons

Pros

  • Integrated circuitry simplifies electrical connections
  • High-grade materials offer excellent heat resistance
  • Ensures smooth engine idle and consistent power delivery
  • Matches OEM quality standards for dependable performance

Cons

  • Specific compatibility requirements limit general use
  • Requires proper diagnostic testing to confirm coil failure before replacement
  • Sensitive to improper installation torque

Setup, Compatibility & Care

Installation requires basic hand tools, specifically a socket set and potentially a torque wrench. Before starting, disconnect the negative battery terminal to prevent electrical shorts. Locate the ignition coil on the valve cover or cylinder head, remove the electrical connector, unscrew the mounting bolt, and pull the coil straight out. Ensure the rubber boot is seated correctly upon installation.

Compatibility must be verified using your vehicle's VIN or engine code via an online parts database. Care should be taken not to drop the coil, as internal components can be damaged by sudden impact. Keep the electrical harness connections clean and free of debris to maintain a solid signal path.

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