NGK 48617 Ignition Coil

NGK COP Ignition Coil for Ford and Lincoln

NGK Ignition Coil 48617 is a coil-on-plug replacement built for distributorless ignition systems that demand stable voltage delivery and consistent spark performance. It is engineered for direct-fit service on select Ford Mustang, Lincoln Navigator, and related applications.

Key Features

• 12-volt ignition coil for distributorless systems
• COP (coil on plug) design for direct spark delivery
• Blade terminal type with 2 terminals
• Female connector and male terminal configuration
• Oil-filled: No
• Mounting bracket not included
• NGK part number 48617 / U5184

Product Details

NGK COP Ignition Coil 48617 is part of NGK’s ignition coil line, which is built to meet or exceed OE standards for durability and operational performance. NGK develops and tests its coil designs in an ISO 17025 accredited lab under demanding conditions, with a focus on consistent output and long service life in late-model domestic and import vehicles. This coil is a direct replacement for applications such as the Ford Mustang, Lincoln Navigator, and Lincoln Aviator, where a coil-on-plug design is used to fire each cylinder individually.

This part cross-references Standard Ignition UF-191 for the same application.

What It Helps Fix

• Engine misfire caused by a weak or failing ignition coil
• Rough idle during cold start or under load
• Hard starting related to inconsistent spark output
• Loss of power from intermittent ignition breakdown
• Check engine light triggered by ignition coil faults

Installation Notes and Tips

Verify connector style, terminal count, and coil-on-plug layout before installation. Confirm vehicle application by year, make, and model, especially on Ford Mustang 1999-2014, Lincoln Navigator 1999-2004, Lincoln Aviator 2003-2005, and related fitments. Inspect the spark plug well, connector, and surrounding ignition components for heat damage or corrosion before replacing the coil. For best results, replace any worn spark plugs at the same time if service history is unknown.

Quality Assurance

NGK backs this ignition coil with OE-focused engineering, global manufacturing support, and rigorous lab testing to help ensure dependable performance in real-world driving conditions. The brand’s long history in ignition products supports consistent fit and function across covered Ford and Lincoln applications.