Cometic Peugeot XU9J4/XU9J4Z/XU10J2/XU10J4 .089in MLS Cylinder Head Gasket - 84mm Bore

If you're working on the engine of your 1999-2003 Toyota Sienna, this Cometic Multi-Layer Steel (MLS) cylinder head gasket is a solid choice for sealing the combustion chamber. It's specifically designed for the XU9J4/XU9J4Z/XU10J2/XU10J4 engine family, featuring an 84mm bore and a .089-inch thickness, which is crucial for maintaining proper compression ratios during an engine rebuild or repair.

Cometic builds these gaskets using three to five layers of stainless steel. This material choice offers increased strength and is resistant to corrosion, while also being able to rebound well under pressure. The outer layers are treated with a special Viton rubber coating on both sides. This coating is heat-resistant up to 482°F (250°C) and helps the gasket conform to the engine block and cylinder head surfaces, ensuring a strong seal even in tough conditions.