NGK 48757 Ignition Coil

Reliable Ignition Coil for Porsche 911, Boxster, and Cayman

The NGK COP (Pencil Type) Ignition Coil, part number 48757, is designed to deliver consistent ignition performance for select Porsche models. Engineered for distributorless ignition systems, this 12-volt coil ensures efficient spark delivery to maintain engine reliability.

Key Features of NGK COP (Pencil Type) Ignition Coil

• Voltage: 12 volts, suitable for standard automotive electrical systems
• Ignition Type: Distributorless ignition system compatibility
• Coil Type: COP (pencil type) design for direct ignition
• Terminal Type: Blade terminals with 4 terminal quantity
• Connector Gender: Female connector with male terminals
• Oil Filled: No, designed for dry operation
• Mounting Bracket: Not included
• Part Number: U5237 (alternate reference)

About the NGK COP (Pencil Type) Ignition Coil Line

The NGK COP (Pencil Type) Ignition Coil product line focuses on coil-on-plug ignition solutions that provide direct spark delivery to each cylinder. This design eliminates the need for traditional spark plug wires, reducing energy loss and improving ignition efficiency. The pencil type coil is compact and fits directly onto the spark plug, making it suitable for modern distributorless ignition systems found in Porsche 911, Boxster, and Cayman models.

Detailed Product Description

This NGK ignition coil operates at 12 volts and is specifically designed for distributorless ignition systems, which are common in Porsche sports cars like the 911, Boxster, and Cayman. The coil-on-plug (COP) pencil type design allows for precise spark timing and improved combustion efficiency. Featuring blade-type terminals with a total of four terminals, the coil connects securely with female connectors and male terminals to ensure reliable electrical contact. The coil is not oil filled, which is typical for pencil type ignition coils, and it does not include a mounting bracket, so installation requires using the vehicle's existing mounting points.

Common Applications and Issues Addressed

• Replacement for faulty or worn ignition coils in Porsche 911, Boxster, and Cayman models
• Resolves misfires caused by weak or inconsistent spark delivery
• Improves engine starting reliability and smooth idling
• Addresses rough engine performance related to ignition coil failure
• Helps maintain optimal fuel combustion and engine efficiency

Installation Notes and Tips

When installing the NGK COP (Pencil Type) Ignition Coil part number 48757, ensure the ignition system is compatible with distributorless coil-on-plug technology. Verify the connector gender and terminal type match the vehicle’s wiring harness. Since the coil does not include a mounting bracket, use the original mounting hardware and follow manufacturer torque specifications. It is recommended to inspect spark plugs and wiring connections during installation for optimal performance.

Quality Assurance and Warranty

NGK ignition coils are manufactured to meet strict quality standards for durability and performance. While specific warranty details for part number 48757 should be confirmed with the supplier, NGK products typically come with a limited warranty covering defects in materials and workmanship. Using genuine NGK ignition coils helps ensure reliable operation in Porsche 911, Boxster, and Cayman vehicles.