NGK 48973 Ignition Coil

NGK COP Ignition Coil for OE-Style Performance

The NGK COP Ignition Coil, part number 48973, is built for distributorless ignition systems that use a coil-on-plug design. It is engineered to meet or exceed OE standards for durability and consistent spark delivery across a wide range of late-model domestic and import vehicles.

Compatible With Buick LaCrosse, Buick Regal, Buick Verano, Chevrolet Equinox, Chevrolet Malibu, GMC Terrain, and other listed applications, this NGK ignition coil supports reliable ignition performance in vehicles that depend on precise coil output. The 48973 coil is a direct-fit replacement for many GM and Saab applications.

Key Features

• NGK COP Ignition Coil for coil-on-plug applications
• 12-volt ignition coil for distributorless ignition systems
• Blade terminal design with 4 terminals
• Female connector and male terminal configuration
• Oil-filled: No
• Part number 48973 / NGK part number U5180
• Cross-reference: Delphi GN10485 and DENSO Auto Parts 673-7201

Product Details

NGK develops ignition coils with a focus on OE-level fit, durability, and stable operation. This COP ignition coil is tested under demanding conditions in an ISO 17025 accredited lab to verify performance beyond typical vehicle operating environments. The design supports late-model domestic and import coverage, including applications such as the Chevrolet Equinox, GMC Terrain, Buick Regal, and Chevrolet Malibu. If you are replacing a worn coil on a GM or Saab platform, part number 48973 provides a direct replacement path for the listed vehicles.

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 coil performance
• Loss of power under load from degraded coil operation

Installation Notes and Tips

Verify the connector style, terminal count, and coil-on-plug configuration before installation. Confirm vehicle year, make, and model against the fitment list for the exact application. For best results, inspect spark plugs and related ignition components during coil replacement, especially on high-mileage Buick, Chevrolet, GMC, Pontiac, Saturn, and Saab vehicles.

Quality Assurance

NGK backs this ignition coil with more than 80 years of automotive experience and a manufacturing approach centered on OE standards, testing, and quality control. The brand’s North American and global production and distribution network supports consistent product availability and application coverage.