NGK 48859 Ignition Coil

NGK COP Ignition Coil for Mazda 3 and Mazda 5

NGK Part Number 48859 is a COP (coil-on-plug) ignition coil built for distributorless ignition systems. It is specified for select Mazda 3 and Mazda 5 applications, including 2010-2013 Mazda 3 and 2009-2015 Mazda 5 coverage shown below.

Key Features

• 12-volt ignition coil for distributorless systems
• COP (coil-on-plug) design for direct spark delivery
• 3-terminal blade connection with female connector and male terminals
• Oil-filled: No
• Manufactured to meet or exceed OE standards for durability and operational performance
• Developed and tested in an ISO 17025 accredited lab under extreme conditions

Product Details

NGK ignition coils are backed by more than 80 years of automotive experience and a strong OE legacy. The NGK COP Ignition Coil line is built with state-of-the-art manufacturing and rigorous validation to support consistent ignition performance in late-model domestic and import vehicles. Part number 48859 is a direct-fit style ignition coil for Mazda 3 and Mazda 5 applications listed in the fitment data, making it a practical replacement when servicing a misfiring or weak-ignition concern.

This part cross-references Delphi GN10623 and Standard Ignition UF-604 for the same application.

What It Helps Address

• Engine misfire caused by a weak or failing ignition coil
• Hard starting related to inconsistent spark output
• Rough idle and hesitation under load
• Check engine light concerns tied to ignition performance
• Loss of power from degraded coil output

Installation Notes and Tips

Verify the connector style, terminal count, and ignition type before installation. This coil uses a 3-terminal blade connection and is intended for distributorless COP applications. Confirm the vehicle match against the listed Mazda 3 and Mazda 5 fitment before replacing the original coil. NGK Part Number 48859 should be installed on the correct application only.

• Fits 2012-2015 Mazda 5, N/A
• Fits 2009-2010 Mazda 5, N/A
• Fits 2010-2013 Mazda 3, N/A

Quality Assurance

NGK manufactures this ignition coil to meet or exceed OE standards and validates coil designs in an ISO 17025 accredited test lab. That process supports consistent fitment and performance for Mazda 3 and Mazda 5 service applications covered by Part Number 48859.