金杯长城4Y发动机高压点火线圈491Q-E370705A 原厂品质

Jinbei Changcheng 4Y engine (491Q-E type) high-voltage ignition coil, OEM number 491Q-E370705A, uses copper winding and epoxy encapsulation like the original; insulation and heat dissipation are stable, with measured lifespan comparable to OEM parts and not prone to high-temperature breakdown. This coil fits Jinbei Haise, Geraishi, Changcheng Sfever and other models; function is to boost low voltage to tens of thousands of volts to ensure proper spark plug firing, directly affecting idle stability and acceleration response. Replacement is basic: remove the old coil, reconnect high-voltage wires, and secure with screws.