Cylinder-head bolts guarantee a secure and releasable joint. However, this does not mean that the same bolt can be reused for the same application. When reassembling a cylinder head, always make sure to use new head bolts. The result will be a high sealing pressure for a reliable and tight joint.

Make sure to use head bolts exclusively from quality manufacturers. Glaser® cylinder-head bolts comply with all manufacturer specifications, and are matched perfectly to our head gasket sets. Of course, the torquing guidelines are always supplied – available in 12 languages.

As with shaft seals, Glaser® offers the entire line of valve stem seals from single valve stem seals designed as sleeves in a wide range of materials to integrated valve stem seals. With this design, the seal and valve spring seat are combined into a single component. After installation, the valve stem seal is easily and securely fixed in the engine by the valve spring.

The most important types of dynamic seals are oil seals for use on rotating shafts, and valve stem seals for reducing the flow of oil through the cylinder-head into the combustion chamber.
In addition to simple oil seals and integrated radial oil seals, Glaser® offers a new generation of PTFE radial oil seals.

A Perfect Combination – Oil Seals and PTFEThe advantages of PTFE technology set new standards in the development of oil seals.

Modern engine concepts require solutions for dynamic seals, which are able to withstand the high loads lastingly. Thanks to outstanding properties, PTFE meets these demands
- the best prerequisites for series use in modern engines.

Cylinder head cover gaskets withstand high and low temperatures to provide a reliable seal with minimal tightening. Dana only uses high-quality rubbers to satisfy the tough demands.

Cylinder head cover gaskets are increasingly produced with profiles and not flat; that is, the gasket surface is provided with beads or lips. Now, instead of the entire gasket surface, only the profile needs to be pressed, that is, the sealing bead or sealing lip, and just a slight amount of bolting force produces sufficient deformation and adaptation.

Cylinder-head bolts guarantee a secure and releasable joint. However, this does not mean that the same bolt can be reused for the same application. When reassembling a cylinder head, always make sure to use new head bolts. The result will be a high sealing pressure for a reliable and tight joint.

Make sure to use head bolts exclusively from quality manufacturers. Glaser® cylinder-head bolts comply with all manufacturer specifications, and are matched perfectly to our head gasket sets. Of course, the torquing guidelines are always supplied – available in 12 languages.

As with shaft seals, Glaser® offers the entire line of valve stem seals from single valve stem seals designed as sleeves in a wide range of materials to integrated valve stem seals. With this design, the seal and valve spring seat are combined into a single component. After installation, the valve stem seal is easily and securely fixed in the engine by the valve spring.

The most important types of dynamic seals are oil seals for use on rotating shafts, and valve stem seals for reducing the flow of oil through the cylinder-head into the combustion chamber.
In addition to simple oil seals and integrated radial oil seals, Glaser® offers a new generation of PTFE radial oil seals.

A Perfect Combination – Oil Seals and PTFEThe advantages of PTFE technology set new standards in the development of oil seals.

Modern engine concepts require solutions for dynamic seals, which are able to withstand the high loads lastingly. Thanks to outstanding properties, PTFE meets these demands
- the best prerequisites for series use in modern engines.