Setup, Compatibility & Care
Before installation, always confirm that the APR5FS 3122 is the correct part number for your specific engine by consulting your owner's manual or an automotive parts database. When installing, ensure the engine is completely cool to prevent damage to the cylinder head threads. Use a spark plug socket and torque the plug to the manufacturer's recommended specifications; avoid overtightening, as this can crack the ceramic insulator. If you are replacing multiple plugs, do them one at a time to avoid mixing up ignition wire order.