The NGK U4008 Ignition Coil, also known as part number 48157, is designed based on a fundamental operating principle shared by all ignition coils, whether used in classic can-type configurations or modern coil rail systems. It incorporates two copper wire windings meticulously insulated to prevent short circuits, alongside a laminated iron core. In operation, the primary winding receives current from the battery, generating a magnetic field intensified by the iron core. Upon interrupting this circuit, the collapse of the magnetic field induces a high-voltage pulse in the secondary coil, essential for ignition in internal combustion engines. This design ensures consistent and efficient ignition performance, making it a reliable choice for automotive applications.

Part number: U4008