NGK COP Ignition Coil Stock # 48617

The NGK COP Ignition Coil Stock # 48617 (Model U5184) is a direct replacement coil-on-plug unit designed for modern vehicles that utilize distributor-less ignition systems. This compact ignition coil mounts directly over the spark plug, eliminating the need for secondary ignition wire runs and delivering voltage precisely where combustion occurs. It is an ideal solution for those troubleshooting issues like misfires, rough idles, or decreased fuel economy.

Engineered with high-impedance winding geometry, the NGK U5184 generates the high voltage necessary for modern fuel-injected engines while minimizing electromagnetic interference with engine control modules. The coil features a durable polymer housing that can withstand underhood heat cycling and vibration, along with internal circuitry that optimizes plug firing by controlling dwell time. Its sealed connector interface ensures corrosion resistance, enhancing longevity.

Mechanics and DIY enthusiasts often choose the NGK U5184 for vehicles experiencing misfires due to coil degradation, especially after 80,000+ miles of service. Installation is straightforward, requiring only basic tools like a socket and screwdriver to replace the old coil. This makes it a practical choice for those looking to restore engine performance without extensive modifications.