NGK 49182 Ignition Coil

NGK COP Ignition Coil for Infiniti

The NGK COP (Pencil Type) Ignition Coil is built for electronic ignition systems and 12-volt operation, with a 3-terminal blade connection and female connector design. It is engineered to meet or exceed OE standards for durability and consistent ignition performance on late-model Infiniti applications.

Compatible with 2016-2022 INFINITI Q50 and 2017-2022 INFINITI Q60, this NGK ignition coil supports direct replacement service for vehicles using a pencil-type coil-on-plug layout. Part number 49182 is also identified as U5399.

Key Features

• COP (Pencil Type) ignition coil for coil-on-plug applications
• 12-volt electronic ignition design
• 3-terminal blade connection with female connector and male terminals
• Oil-filled: No
• Mounting bracket not included
• Part number 49182 / U5399

Product Details

NGK ignition coils are developed with a focus on OE-level fit, durability, and operational consistency. The NGK COP product line is backed by the brand’s long history in ignition components and is tested in an ISO 17025 accredited lab under demanding conditions to verify performance before release. For drivers and technicians servicing an Infiniti Q50 or Infiniti Q60, this coil provides a direct replacement option for restoring proper spark delivery and ignition control.

This part cross-references Standard Ignition UF819 for the same application.

Common Issues This Part Can Address

• Engine misfire under load or at idle
• Rough running or uneven acceleration
• Hard starting caused by weak ignition output
• Check engine light related to ignition coil faults
• Loss of spark on a specific cylinder

Installation Notes

Verify connector style, terminal count, and coil type before installation. Inspect the spark plug, coil boot, and wiring harness for wear or contamination before replacing the coil. Clear diagnostic trouble codes after installation and confirm proper engine operation on a road test.

Quality Assurance

NGK manufactures this ignition coil to meet or exceed OE standards and validates coil designs through controlled laboratory testing. The brand’s OE legacy and broad late-model vehicle coverage support confident replacement service for Infiniti Q50 and Infiniti Q60 ignition repairs.