OEM quality spark plugs deliver dependable ignition performance and long service life, designed to meet the original equipment specifications used by vehicle manufacturers. Quality, reliability and durability you expect from an OEM manufacturer are built in, so you get consistent performance over time. As the world’s largest supplier of OEM spark plugs, we offer broad coverage and strict adherence to OEM standards, helping ensure compatibility and supply reliability. Before purchase, research applications to ensure this OEM part fits your vehicle, including engine type, drivetrain configuration, and the quantity needed. Use scenarios - Replacing worn spark plugs in a standard gasoline passenger car to restore smooth idle, responsive acceleration and improved fuel efficiency. - Routine OEM replacement in a mixed fleet to maintain reliability and minimize downtime due to misfires or uneven performance. - OEM-grade replacement for high-mileage or performance-sensitive engines where exact fit and durable ignition are important to maintain OEM behavior and drivability. Key attributes - Function: reliable ignition and combustion performance consistent with original equipment. - Compatibility: designed to meet OEM specifications; verify fit with your engine and drivetrain configuration and confirm the required quantity. - Size and fit: compatible with engines and drivetrains that use the specified OEM spark plug type; check vehicle application to confirm correct size and installation. - Performance: balanced for reliability and longevity to support stable engine operation over time.