NGK COP Ignition Coil Stock # 48755

The NGK COP Ignition Coil Stock # 48755 is a coil-on-plug (COP) ignition system component engineered to OEM specifications. This single-unit coil delivers consistent high-voltage spark generation directly to the spark plug, eliminating the need for traditional spark plug wires. The design meets factory performance standards and is built to integrate seamlessly into vehicles originally equipped with COP ignition architecture.

Coil-on-plug technology concentrates the ignition transformer directly over each cylinder, reducing electrical resistance and improving combustion efficiency. This configuration allows for tighter spark timing control and faster ignition rise time compared to traditional ignition systems. The compact form factor—measuring 2.9 x 2.8 x 8.25 inches and weighing 0.55 lbs—fits within tight engine bay spaces on modern vehicles. NGK's manufacturing standards ensure consistent output and durability across thermal cycles and varying engine loads.

This ignition coil is suitable for owners maintaining or replacing factory COP ignition systems on compatible vehicles. It addresses starting difficulty, rough idle, hesitation under acceleration, and misfire conditions that indicate coil degradation. Buyers should confirm vehicle compatibility using the NGK model U5187 against their vehicle's application chart before purchase. OEM-spec replacement coils maintain factory ignition timing parameters and are preferred by technicians who prioritize reliability over aftermarket alternatives.

NGK ignition coils are recognized in automotive service for consistent quality across production batches. When selecting a COP ignition coil replacement, verifying the correct part number (U5187) and checking engine application compatibility ensures the system functions as designed. Individual coil replacement is common when a single unit fails, though some technicians recommend replacing all coils simultaneously if the vehicle has high mileage.