NGK 48939 Ignition Coil

NGK COP Ignition Coil for Hyundai and Kia

The NGK 48939 ignition coil is a COP (pencil type) coil built for distributorless ignition systems. It is engineered to meet or exceed OE standards for durability and consistent spark delivery on late-model Hyundai and Kia applications.

With coverage for vehicles such as the Hyundai Sonata, Genesis, Tucson, and Kia Optima, this coil is a direct replacement choice for drivers addressing misfire or ignition performance concerns. The NGK COP (Pencil Type) Ignition Coil line is backed by NGK’s long OE-focused manufacturing experience and testing practices.

Key Features

• 12-volt ignition coil for distributorless ignition systems
• COP (pencil type) design for direct coil-on-plug applications
• Blade terminal style with 2 terminals
• Female connector and male terminal configuration
• Dry design with no oil fill
• No mounting bracket included
• NGK part number 48939

Product Details

NGK ignition coils are developed for OE-level fit and performance, with validation in an ISO 17025 accredited test lab under demanding conditions. This NGK 48939 coil is intended for Hyundai and Kia vehicles using a distributorless COP ignition setup, including applications across the 2008-2017 model years. It cross-references Standard Ignition UF-611 for the same application.

Compatible vehicle coverage includes Hyundai Genesis, Sonata, Tucson, Santa Fe Sport, Genesis Coupe, Equus, and Kia Optima, Sorento, Forte, Forte5, Sportage, and K900. If you are replacing a failing ignition coil on a Hyundai Sonata or Kia Optima, this part number 48939 provides a direct-fit service option for the listed applications.

Common Problems This Coil Can Address

• Engine misfire caused by a weak or failing ignition coil
• Rough idle or hesitation during acceleration
• Hard starting related to inconsistent spark output
• Check engine light concerns tied to ignition performance
• Loss of power from degraded coil operation

Installation Notes and Tips

Verify the connector style, terminal layout, and OE part number before installation. This coil uses a blade terminal design with a female connector and male terminal configuration, so matching the original electrical connection is important. Inspect the spark plug and coil boot area for wear, oil contamination, or carbon tracking before installing the new coil.

For best results, confirm fitment against the vehicle’s engine code and original coil reference. The NGK 48939 is a direct replacement for the listed Hyundai and Kia applications, including Hyundai Genesis, Sonata, and Kia Optima models within the stated year ranges.

Quality Assurance

NGK manufactures ignition coils to OE standards and validates designs through controlled testing for durability and operational performance. The brand’s ignition expertise and broad late-model vehicle coverage support consistent replacement quality for Hyundai and Kia ignition service.