Buick Spark Plug W7DC 92220447 Direct Replacement

Generic Buick spark plugs (OEM 92220447) directly replace the factory W7DC spec, installed in the engine cylinder head to ignite the air-fuel mixture. Fits Buick models from 2000 onwards; installation difficulty depends on the number of cylinders; labor about 0.5–1 hour. If starting is difficult, idle is rough, acceleration weak, or fuel consumption rises, spark plugs are aging or heavily carboned and should be replaced promptly.