NGK 48728 Ignition Coil

Reliable Ignition Coil for Audi, Porsche, and Volkswagen Vehicles

The NGK COP (Pencil Type) Ignition Coil, part number 48728, is designed to deliver consistent ignition performance for select Audi, Porsche, and Volkswagen models. This 12-volt ignition coil supports distributorless ignition systems, ensuring efficient spark delivery and engine operation.

• 12-volt ignition coil compatible with distributorless ignition systems
• Cop (pencil type) coil design for direct spark plug connection
• Blade terminal type with four terminals for secure electrical connections
• Female connector and male terminal gender for proper fitment
• Oil-free construction for maintenance-free operation
• Compatible with multiple Audi, Porsche, and Volkswagen models

About the NGK COP (Pencil Type) Ignition Coil Line

The NGK COP (Pencil Type) Ignition Coil product line focuses on pencil-style ignition coils that provide direct ignition to spark plugs without the need for a distributor. This design improves ignition efficiency and reduces electrical losses. The NGK COP ignition coils are engineered to meet OEM specifications, making them suitable replacements for vehicles requiring distributorless ignition systems, such as many Audi, Porsche, and Volkswagen models.

Product Details and Specifications

This ignition coil operates at 12 volts and is designed specifically for distributorless ignition systems, which are common in modern vehicles like the Audi A4 Quattro, Porsche Cayenne, and Volkswagen Touareg. The pencil-type coil design allows it to fit directly over the spark plug, eliminating the need for spark plug wires and improving ignition reliability. The coil features a blade terminal type with four terminals, ensuring a secure and stable electrical connection. The connector is female, while the terminal gender is male, matching OEM configurations. This coil is oil-free, which reduces maintenance concerns and potential leaks. Note that this part does not include a mounting bracket.

Compatible Vehicles and Common Applications

• Replacement ignition coil for Audi models including A4, A4 Quattro, A5 Quattro, A6, A6 Quattro, A7 Quattro, A8 Quattro, S4, S5, S6, S8, and SQ5
• Suitable for Porsche models such as Cayenne, Panamera, and R8
• Fits Volkswagen vehicles including Q5, Q7, and Touareg
• Designed for distributorless ignition systems requiring pencil-type ignition coils

Common Issues Addressed by This Ignition Coil

• Engine misfires caused by faulty or weak ignition coils
• Difficulty starting the engine due to inconsistent spark delivery
• Reduced engine performance and fuel efficiency
• Check engine light triggered by ignition system faults
• Rough idling or hesitation during acceleration

Installation Notes and Tips

When installing the NGK COP (Pencil Type) Ignition Coil 48728, ensure the ignition system is compatible with distributorless ignition and pencil-type coils. Disconnect the battery before installation to prevent electrical shorts. Carefully remove the old ignition coil and inspect the spark plug for wear or damage. Align the coil properly over the spark plug and connect the blade terminals securely. Since this coil does not include a mounting bracket, verify that the vehicle’s existing mounting hardware is intact and suitable for reuse. After installation, clear any diagnostic trouble codes and perform a test start to confirm proper operation.

Quality Assurance and Warranty

NGK ignition coils are manufactured to meet strict quality standards and OEM specifications. The NGK COP (Pencil Type) Ignition Coil 48728 undergoes rigorous testing to ensure durability and reliable performance. While specific warranty details may vary, NGK typically offers a limited warranty covering defects in materials and workmanship. Refer to NGK’s official documentation for exact warranty terms.