NGK 48925 Ignition Coil

NGK COP Rail Ignition Coil Assy. 48925

NGK 48925 is a distributorless ignition coil assembly built for COP (rail system) applications that require a 12-volt, blade-terminal design with a female connector and male terminals. It is engineered to meet or exceed OE standards for durability and consistent ignition performance on late-model domestic and import vehicles.

Key Features

• 12-volt ignition coil for distributorless ignition systems
• COP (rail system) design for direct coil-on-plug style applications
• Blade terminal type with 5 terminals
• Female connector gender and male terminal gender
• Oil-filled: No
• No mounting bracket included
• Developed and tested in an ISO 17025 accredited lab

Product Details

The NGK COP (Rail) Ignition Coil Assy. line is built around OE-style fit, form, and function for vehicles that rely on precise spark delivery. NGK applies more than 80 years of ignition experience and uses controlled manufacturing and testing processes to support consistent output under demanding conditions. Part number 48925 is listed for applications including 2001-2005 Saturn L300, 2003-2004 Cadillac CTS, 2001-2003 Saturn LW300, 2002-2003 Saturn Vue, 1999-2001 Cadillac Catera, 2000 Saturn LS2, and 2000 Saturn LW2, with cylinder-specific coverage noted for cylinders 1, 3, and 5 on the listed vehicles.

This part cross-references Standard Ignition UF-278 and Delphi GN10329 for the same application.

Common Symptoms This Part Can Address

• Engine misfire under load or at idle
• Hard starting or extended crank time
• Rough running and hesitation during acceleration
• Loss of spark on affected cylinders
• Check engine light related to ignition coil performance

Installation Notes and Tips

Confirm the connector style, terminal layout, and cylinder-specific application before installation. This NGK ignition coil 48925 is listed for black-connector applications on the supported Saturn and Cadillac models, so matching the original connector and cylinder position is important for proper fitment. Inspect the coil boot, wiring, and spark plug condition during service to help prevent repeat ignition faults.

Quality Assurance

NGK manufactures ignition coils to meet or exceed OE standards and validates designs in an ISO 17025 accredited test lab. The brand’s OE legacy and broad vehicle coverage support confident replacement selection for Saturn L300, Cadillac CTS, and related applications.