NGK 48704 Ignition Coil

NGK COP Ignition Coil for Audi V6 Applications

The NGK COP (Pencil Type) Ignition Coil, part number 48704, is a distributorless ignition coil built for direct replacement use on select Audi models. It is engineered to meet or exceed OE standards for durability and consistent ignition performance, with coverage for late-model domestic and import vehicles.

• COP (pencil type) ignition coil for distributorless ignition systems
• 12-volt design with blade terminals
• Female connector, male terminal configuration
• Oil-filled: No
• Mounting bracket included: No
• Part number 48704 / stock number 48704

NGK COP Product Line Details

NGK COP ignition coils are part of NGK’s ignition-focused product line, backed by decades of automotive experience and testing in an ISO 17025 accredited lab. The line is developed for consistent electrical performance and broad vehicle coverage, including Audi A4, Audi A4 Quattro, Audi A6, and Audi A6 Quattro applications.

Detailed Description

This NGK ignition coil is a COP (pencil type) unit for distributorless ignition systems, making it a direct-fit service part for select Audi A4, Audi A4 Quattro, Audi A6, and Audi A6 Quattro models. The coil uses a 12-volt electrical design, a blade-style terminal layout, and a female connector with male terminals for proper interface with the vehicle harness. Part number 48704 is also referenced as U5013.

This part cross-references Standard Ignition UF-483 and DENSO Auto Parts 673-9301 for the same application.

Common Issues This Coil Can Address

• Engine misfire under load
• Rough idle or uneven acceleration
• Hard starting caused by weak spark output
• Check engine light related to ignition coil faults
• Intermittent ignition performance on distributorless systems

Installation Notes and Tips

• Verify the connector style, terminal count, and coil shape before installation.
• Inspect the spark plug, plug well, and wiring connector for heat damage or corrosion.
• Confirm vehicle-specific fitment for Audi A4, Audi A4 Quattro, Audi A6, or Audi A6 Quattro before ordering.
• For 2003 Audi A6 Quattro applications, confirm the vehicle uses the red coil configuration noted in fitment data.

Quality Assurance

NGK manufactures ignition coils to meet or exceed OE standards and tests coil designs under extreme conditions in an ISO 17025 accredited laboratory. That focus on validation and OE-level performance supports dependable service on 2002-2006 Audi A4 Quattro, 2002-2005 Audi A4, and 2002-2004 Audi A6 applications.