Ensure your Mercury Mariner engine runs smoothly with this durable head gasket designed for 150, 175, and 200 HP 2.5L V6 models. It's a direct replacement for part numbers 27-822844T04, 822844T04, 27-822844T05, 822844T05, 27-822844-1, and 822844 1, making installation straightforward and reliable.