NGK 49178 Ignition Coil

NGK COP Ignition Coil Multi-Pack for Toyota and Lexus

The NGK COP Ignition Coil Multi-Pack is built for distributorless ignition systems that use coil-on-plug design. It is engineered to meet or exceed OE standards for durability and consistent ignition performance, making it a direct choice for late-model Toyota and Lexus applications.

Part number 49178 is part of the NGK COP Ignition Coil Multi-Pack line, which focuses on OE-style ignition coverage for import vehicles. NGK’s manufacturing and testing process is backed by decades of ignition expertise and validation in an ISO 17025 accredited test lab.

Key Features

• Coil-on-plug (COP) ignition coil for distributorless ignition systems
• 12-volt electrical specification
• Blade terminal design with 4 terminals
• Female connector gender and male terminal gender
• Oil-filled: No
• Mounting bracket included: No
• OE-style replacement coverage for select Toyota and Lexus vehicles
• Part number 49178 for easy identification

Fitment Details

• Fits 2002-2006 Toyota Camry, N/A
• Fits 2000-2004 Toyota Avalon, N/A
• Fits 2002-2003 Lexus ES300, N/A
• Fits 1999-2003 Lexus RX300, N/A
• Fits 2001-2003 Toyota Highlander, N/A
• Fits 2001-2003 Toyota Sienna, N/A
• Fits 1999-2001 Lexus ES300, N/A

What It Helps Address

• Engine misfire conditions caused by a weak ignition coil
• Rough idle related to inconsistent spark output
• Hard starting from degraded coil performance
• Loss of power under load from ignition breakdown
• Check engine light concerns tied to ignition system faults

Installation Notes and Tips

Confirm the vehicle uses a distributorless COP ignition setup before ordering. Match the connector style, terminal layout, and OE reference numbers to the original coil on the vehicle. For Toyota Camry, Avalon, Highlander, and Sienna, as well as Lexus ES300 and RX300 applications, verify engine-specific fitment against the original part number before installation. Part number 49178 may also be referenced in OE-style interchange listings for the same application.

Quality Assurance

NGK ignition coils are manufactured to meet or exceed OE standards and are tested under demanding conditions to verify durability and operational performance. NGK’s long-standing ignition focus and global manufacturing support consistent product quality for service replacement use.