NGK 49186 Ignition Coil

Reliable Ignition Coil for Lexus and Toyota Vehicles

The NGK COP (Pencil Type) Ignition Coil 49186 is designed to deliver consistent ignition performance for select Lexus and Toyota models. Engineered for electronic ignition systems, this 12-volt coil ensures efficient spark delivery and reliable engine operation.

• Voltage: 12V for standard automotive electrical systems
• Ignition Type: Electronic, compatible with modern ignition modules
• Coil Type: COP (Pencil Type) for direct ignition on spark plugs
• Terminal Type: Blade terminals with 4 terminals for secure connections
• Connector Gender: Female connector with male terminals
• Oil Filled: No, designed for dry operation
• Mounting Bracket: Not included
• Part Number: U5403 (NGK internal), Stock Number: 49186

About the NGK COP (Pencil Type) Ignition Coil Line

The NGK COP (Pencil Type) Ignition Coil product line focuses on coil-on-plug designs that provide direct ignition to spark plugs without the need for traditional spark plug wires. This design reduces energy loss and improves ignition timing accuracy. The 49186 part is a pencil-type coil that fits specific Lexus and Toyota models, ensuring compatibility with electronic ignition systems requiring blade terminal connections.

Product Details and Compatibility

This ignition coil operates at 12 volts and is intended for electronic ignition systems found in various Lexus and Toyota vehicles. It features a pencil-type coil design that mounts directly onto the spark plug, eliminating the need for separate ignition wires. The blade terminal type with four terminals and a female connector ensures a secure and reliable electrical connection. This coil is not oil filled and does not include a mounting bracket, so installation requires using existing mounting hardware.

Compatible Vehicles

• Lexus ES350, GS350, GS450h
• Lexus Highlander, IS300, IS350
• Lexus LC500, LC500h, LS500h
• Lexus RC300, RC350, RX350, RX350L
• Lexus RX450h, RX450hL, Tacoma

Common Issues Addressed by This Ignition Coil

• Engine misfires or rough idling due to faulty ignition coil
• Difficulty starting the engine or intermittent stalling
• Reduced fuel efficiency caused by weak spark delivery
• Check engine light triggered by ignition system faults
• Loss of power or hesitation during acceleration

Installation Notes and Tips

When installing the NGK COP (Pencil Type) Ignition Coil 49186, ensure the ignition system is powered off and the engine is cool. Verify the connector gender and terminal type match the vehicle’s wiring harness. Since this coil does not include a mounting bracket, use the existing bracket or mounting hardware from the original coil. Properly seat the coil onto the spark plug to ensure optimal spark delivery and avoid damage to the coil or spark plug.

Quality Assurance and Warranty

NGK ignition coils are manufactured to meet OEM specifications for durability and performance. The NGK COP (Pencil Type) Ignition Coil 49186 undergoes rigorous testing to ensure reliable operation in compatible Lexus and Toyota vehicles. Warranty coverage details should be confirmed with the point of purchase or NGK directly.