NGK 48587 Ignition Coil

NGK DIS Ignition Coil for Subaru Applications

The NGK DIS Ignition Coil, part number 48587, is built for distributorless ignition systems that need stable voltage delivery and consistent spark performance. It is a direct-fit ignition coil option for select Subaru Forester, Impreza, and Legacy models, including 1990-1997 Subaru Legacy and 1996-1998 Subaru Impreza applications.

Key Features

• 12-volt ignition coil for distributorless ignition systems
• DIS coil type with a 3-terminal blade connection
• Female connector with male terminals for proper electrical interface
• Oil-filled design not used, helping keep the unit simple and service-focused
• Built to meet or exceed OE standards for durability and operational performance
• Developed and tested in an ISO 17025 accredited lab under demanding conditions

Product Details

NGK’s DIS Ignition Coil line is engineered for late-model domestic and import coverage, with a strong OE legacy in ignition components. This ignition coil is designed for Subaru vehicles that use a distributorless setup, including Fits 1998 Subaru Forester, N/A; Fits 1998 Subaru Impreza, N/A; Fits 1996 Subaru Impreza, N/A; and Fits 1990-1997 Subaru Legacy, N/A. The part number 48587 is also identified as U2047 in the catalog data, and it cross-references Delphi GN10542 for the same application.

Common Problems This Part Addresses

• Engine misfire caused by weak or inconsistent coil output
• Hard starting related to ignition voltage loss
• Rough idle from unstable spark delivery
• Intermittent hesitation during acceleration
• Ignition performance issues on distributorless Subaru systems

Installation Notes and Tips

Verify the connector style, terminal count, and mounting location before installation. This coil uses a blade-style terminal layout with a female connector and no mounting bracket included, so the existing vehicle setup should be checked against the original unit. Confirm the vehicle’s ignition system is distributorless and match the application to the listed Subaru Forester, Impreza, or Legacy fitment before replacing the coil. Part number 48587 should be compared with the original coil and connector configuration to ensure proper fit.

Quality Assurance

NGK manufactures ignition coils to OE-level standards and validates designs in an accredited test environment to support durability and consistent operation. The brand’s long-standing focus on ignition components and broad vehicle coverage supports confident replacement selection for Subaru Legacy, Impreza, and Forester applications.