Cometic MLS Head Gasket .051" | Ford Focus ST 2013-2018

The Cometic MLS Head Gasket .051" is engineered for the Ford Focus ST 2013–2018 engine platform and is intended for applications requiring a significantly increased head gasket thickness. This multi-layer steel head gasket is commonly used in engines that have undergone substantial machining or are configured to operate with altered compression characteristics. The .051 inch compressed thickness provides additional piston-to-head clearance while maintaining consistent sealing across combustion, oil, and coolant passages.

Multi-Layer Steel Sealing Design

This head gasket utilizes a multi-layer steel construction made from embossed stainless steel sheets combined with a specialized sealing coating. Each layer is designed to respond independently to thermal expansion and contraction, helping the gasket maintain sealing integrity during repeated heat cycles and varying engine loads.

• MLS construction for even clamping force distribution
• Stainless steel layers resist corrosion and material fatigue
• Coated surfaces enhance micro-sealing at critical interfaces

.051 Inch Thickness Characteristics

The .051 inch compressed thickness is typically selected for engines that require increased clearance due to block decking, cylinder head resurfacing, or specific compression ratio management. This thickness provides a noticeable change from stock dimensions and is often used in specialized or heavily modified engine configurations.

• .051 inch compressed thickness
• Increases piston-to-head clearance
• Can reduce compression ratio compared to thinner gaskets

Application and Material Considerations

The Cometic MLS Head Gasket .051" is suitable for Ford Focus ST engines where precise fitment and durable sealing are required under demanding conditions. Precision manufacturing ensures accurate alignment with factory bore spacing and fluid passages, supporting consistent performance over extended service intervals.

• Designed for Ford Focus ST 2013–2018 engines
• Precision-cut for accurate fitment
• Multi-layer steel construction supports long-term sealing stability

Note: This head gasket features a substantially thicker-than-stock profile and will alter engine compression and geometry relative to factory specifications.