Mack Sealing Strip 20734156

This is a Sealing Strip (often referred to as an oil seal or valve cover gasket) designed for the engine assembly of various Volvo construction, trucking, and industrial applications.

This sealing strip is a critical engine component engineered to provide a secure, oil-tight barrier between the valve cover and the cylinder head. It is specifically designed to withstand the high-temperature environment of the cylinder head area and maintain its sealing performance despite the mechanical vibrations inherent in heavy-duty die-sel engine operation. Because it prevents oil leaks that could lead to engine mess, potential fire hazards, or contamination of other engine components, it is manufactured from high-grade, oil-resistant elastomers. During routine engine maintenance, such as valve adjustments or top-end repairs, this strip should be inspected for signs of hardening or compression deformation. It is highly recommended to replace this seal whenever the valve cover is removed to guarantee a reliable, leak-free seal and ensure continued engine cleanliness.