NGK 49018 Ignition Coil

NGK COP Ignition Coil for GM and Import Applications

The NGK COP (Pencil Type) Ignition Coil, part number 49018, is a distributorless ignition coil built for direct replacement use on a wide range of late-model domestic and import vehicles. It is engineered to meet or exceed OE standards for durability and consistent ignition performance.

Compatible With Buick Enclave, Chevrolet Traverse, Cadillac CTS, and other GM applications across model years from 2005 through 2022, this coil supports reliable spark delivery in COP ignition systems. NGK part number 49018 is also cross-referenced as Continental 49018 for the same application.

Key Features

• COP (pencil type) ignition coil for distributorless ignition systems
• 12-volt electrical specification
• Female connector with male blade terminals
• 4-terminal design
• Non-oil-filled construction
• Built to OE-level durability and operational standards
• Developed and tested in an ISO 17025 accredited lab

Product Details

NGK’s ignition coil line is backed by more than 80 years of automotive experience and a focus on ignition system engineering. The 49018 coil is part of NGK COP (Pencil Type) Ignition Coil coverage for vehicles that use coil-on-plug ignition, where precise spark control is critical for smooth engine operation. This part number 49018 is a direct replacement option for many Buick, Chevrolet, Cadillac, GMC, Saturn, Saab, Suzuki, Pontiac, and related applications.

Fits 2016-2022 Buick Enclave, N/A. Fits 2010-2015 Buick Enclave, N/A. Fits 2008 Buick Enclave, N/A. Fits 2016-2022 Chevrolet Traverse, N/A. Fits 2010-2015 Chevrolet Traverse, N/A. Fits 2016-2019 Cadillac CTS, N/A. Fits 2008-2015 Cadillac CTS, N/A. Fits 2016-2017 GMC Terrain, N/A. Fits 2010-2015 GMC Terrain, N/A.

Common Issues This Part Addresses

• Engine misfire caused by weak or inconsistent coil output
• Hard starting related to ignition coil failure
• Rough idle from degraded spark delivery
• Loss of power under load due to ignition breakdown
• Check engine light triggered by ignition coil faults

Installation Notes and Tips

Verify connector style, terminal layout, and engine application before installation. This coil is for distributorless COP systems and should be matched to the vehicle’s OE configuration. Inspect spark plugs and related ignition components during replacement to help prevent repeat coil stress. Confirm fitment by year, make, model, and engine-specific application before ordering.

Quality Assurance

NGK manufactures this ignition coil to meet or exceed OE standards and validates coil designs under demanding test conditions in an ISO 17025 accredited laboratory. The brand’s long-standing OE legacy and broad vehicle coverage support confident replacement selection for compatible GM and import applications.