NGK Ignition Coil Stock # 49078

The NGK Ignition Coil Stock # 49078 is a direct replacement ignition coil engineered for reliable spark delivery on vehicles requiring OEM-equivalent performance. As an ignition system component, this coil converts battery voltage into the high-voltage pulses necessary to fire spark plugs under all engine loads and conditions. Whether you're maintaining a stock engine or troubleshooting a misfire, this NGK coil provides the precision engineering that serious mechanics and DIY enthusiasts depend on for consistent ignition performance.

NGK ignition coils are manufactured with high-quality materials and tight tolerances to ensure proper electromagnetic induction and voltage regulation across the full RPM range. This particular coil features a robust housing design that protects internal windings from heat, vibration, and moisture—critical factors in preventing premature failure in engine bay environments. The coil's compact form factor (3.4 x 3.3 x 6.7 inches) allows for direct integration into stock engine bays without modification, while its 1.45-pound weight ensures minimal mechanical stress on mounting hardware and adjacent components.

This NGK ignition coil is ideal for mechanics performing ignition system diagnostics, engine maintenance, or full spark plug service intervals on domestic and import vehicles. Installation requires no special tools—simply disconnect the factory coil, remove the mounting bracket, and secure the new unit in place. If you're experiencing rough idle, hesitation on acceleration, or check engine codes related to ignition misfire, replacing a worn coil can restore smooth power delivery and fuel efficiency. Always verify fitment against your vehicle's year, make, and model before purchase to ensure proper connector compatibility and mounting alignment.