NGK 48687 Ignition Coil

NGK COP Ignition Coil for Twin Spark Systems

The NGK COP (Waste Spark) Ignition Coil is a 12-volt distributorless ignition coil built for OE-style performance and durability. This NGK ignition coil, part number 48687, is engineered for late-model Chrysler, Dodge, and Jeep applications with twin spark ignition systems.

NGK’s COP (Waste Spark) coil line focuses on precise ignition output, stable terminal connection, and consistent operation under demanding conditions. Developed and tested in an ISO 17025 accredited lab, the design reflects NGK’s long OE-focused manufacturing background and broad coverage for domestic and import vehicles.

Key Features

• 12-volt distributorless ignition coil for COP (Waste Spark) systems
• Blade terminal design with 2 terminals
• Female connector and male terminal gender configuration
• Oil-filled construction: No
• OE-standard manufacturing focus for durability and operational performance
• Part number 48687 / U4017

Detailed Description

NGK part number 48687 is a COP (Waste Spark) ignition coil designed for vehicles using a twin spark ignition system. It is a direct-fit ignition component for select 2003-2005 Dodge Ram 1500, 2500, and 3500 models, plus 2004-2005 Dodge Durango, 2005 Chrysler 300, 2005 Dodge Magnum, and 2005 Jeep Grand Cherokee applications. If you are searching for an ignition coil for a 2005 Chrysler 300 twin spark ignition system or an NGK ignition coil for a 2005 Dodge Ram 1500, this part matches the listed OE-style application.

This coil is built to meet or exceed OE standards and is tested for performance consistency before release. The NGK COP ignition coil line is supported by the brand’s long history in ignition components, making part number 48687 a practical replacement for vehicles that need stable spark delivery and reliable engine operation.

What It Helps Address

• Engine misfire caused by weak or inconsistent spark output
• Rough idle related to ignition coil wear
• Hard starting from degraded coil performance
• Loss of power under load due to ignition breakdown
• Check engine light concerns tied to ignition coil faults

Installation Notes and Tips

Verify the connector style, terminal layout, and ignition system type before installation. This coil uses a blade terminal design with a female connector and is specified for distributorless COP (Waste Spark) applications. Confirm vehicle fitment by year, make, model, and ignition system details before replacing the original coil.

For fitment-based searches, this part is commonly referenced for 2003-2005 Dodge Ram 2500 ignition coil replacement, 2004-2005 Dodge Durango ignition coil replacement, and 2005 Jeep Grand Cherokee ignition coil replacement.

Quality Assurance

NGK manufactures ignition coils to meet or exceed OE standards and validates designs in an ISO 17025 accredited test lab under demanding conditions. This part cross-references Delphi GN10372 for the same application.