Mazda Ford Ignition Coil ZJ2018100A 5-099700-087 OEM Match

For 2003–2008 Mazda6 (2.0L/2.3L) and 2005–2010 Ford Focus (1.8L/2.0L) four-cylinder engines, this ignition coil perfectly matches OEM specifications. The coil converts low voltage to high voltage to ignite the mixture, ensuring smooth engine operation and improved fuel efficiency. OEM numbers ZJ2018100A and cross-reference 5-099700-087 for inventory checks or OEM replacement. Replacement difficulty is low; use a torque wrench to tighten screws to spec to avoid damaging spark plugs.