NGK 48946 Ignition Coil

NGK COP Ignition Coil for Mazda Applications

The NGK COP Ignition Coil, part number 48946, is built for distributorless ignition systems that use a coil-on-plug design. It is a direct-fit ignition coil for select Mazda MX-5 Miata, Mazda 3, Mazda 3 Sport, Mazda 6, and CX-7 applications, with OE-style electrical connections for straightforward replacement.

• 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
• Mounting bracket included: No
• Fits select 2006-2015 Mazda MX-5 Miata, 2006-2013 Mazda 3, 2009-2013 Mazda 3 Sport, 2006-2013 Mazda 6, and 2007-2012 Mazda CX-7

Product Details

NGK ignition coils are engineered to meet or exceed OE standards and are developed with extensive testing in an ISO 17025 accredited lab. The brand’s COP Ignition Coil line is focused on late-model domestic and import coverage, and this NGK 48946 coil follows that approach with a design suited to Mazda ignition systems that rely on coil-on-plug operation. If you are replacing a failing Mazda MX-5 Miata ignition coil or servicing a Mazda 3, Mazda 6, or CX-7 misfire concern, this part number 48946 provides an OE-style replacement path.

This part cross-references Standard Ignition UF-540 for the same application.

Common Issues This Coil Can Address

• Engine misfire under load or at idle
• Hard starting caused by weak ignition output
• Rough running or hesitation during acceleration
• Check engine light related to ignition coil performance
• Spark loss from a worn coil-on-plug unit

Installation Notes

Verify the connector style, terminal count, and engine application before installation. This NGK ignition coil uses a 3-terminal blade connection and is intended for distributorless, coil-on-plug systems. Confirm fitment for your exact Mazda MX-5 Miata, Mazda 3, Mazda 3 Sport, Mazda 6, or CX-7 by year and engine configuration, including SkyActiv exclusions where noted.

Quality Assurance

NGK manufactures ignition coils to OE-level standards and validates designs through rigorous lab testing under demanding conditions. The brand’s long-standing OE legacy and broad vehicle coverage support confident replacement selection for Mazda ignition service.