NGK 49108 Ignition Coil

NGK COP Ignition Coil Overview

The NGK COP Ignition Coil, part number 49108, is a coil-on-plug replacement built to meet or exceed OE standards for durability and consistent ignition performance. It uses a 12-volt electronic design with a male blade terminal layout for direct service on supported applications.

Compatible With Mercedes-Benz and INFINITI applications, this ignition coil is engineered for late-model vehicles that rely on precise spark delivery. The NGK COP Ignition Coil 49108 also cross-references Continental 49108 and Standard Ignition UF-734 for the same application.

Key Features

• Coil-on-plug ignition coil for electronic ignition systems
• 12-volt design with 4 male blade terminals
• Oil-filled construction is not used
• Built to meet or exceed OE standards
• Part number 49108 for catalog and fitment lookup

Detailed Description

NGK designs this ignition coil for direct replacement service across a wide range of Mercedes-Benz and INFINITI models, including Mercedes-Benz C300, GLC300, E300, and Sprinter 2500 applications, as well as INFINITI Q50 and QX30 coverage. The coil-on-plug format places the ignition coil at the spark plug location for efficient spark transfer and stable engine operation. NGK’s manufacturing and testing process reflects its long OE supply background and focus on ignition system consistency.

Use part number 49108 when matching the correct NGK COP Ignition Coil for supported Mercedes-Benz and INFINITI vehicles. The 49108 ignition coil is also listed for select Freightliner Sprinter applications, making it a practical service part for fleet and passenger vehicle maintenance.

What It Is Used For

• Misfire diagnosis tied to weak or inconsistent spark output
• Rough idle caused by ignition coil degradation
• Hard starting related to poor coil performance
• Loss of power under load from unstable ignition delivery
• Check engine lights associated with ignition coil faults

Installation Notes and Tips

Verify the vehicle’s ignition coil style, connector type, and engine application before ordering. Confirm part number 49108 against the existing coil and the vehicle’s service information, especially on Mercedes-Benz C300, GLC300, and Sprinter 2500 applications where multiple coil references may appear in catalog data. Follow factory service procedures for removal and installation.

Quality Assurance

NGK states that this ignition coil is manufactured to meet or exceed OE standards and is developed and tested in an ISO 17025 accredited laboratory under extreme conditions. That testing focus supports consistent performance and durability for supported applications.