These are studs bought from VW Germany. Please note that these lower studs do not have the typical machine marks on the main body of the stud. We still feel confident in them since they are made by original equipment manufacturer for VW and have VW seal of approval.
In practice, when doing head gasket jobs at the shop here, we inspect the studs to make sure that they have not rusted or corroded from age or contact with an incorrect type or dilution of coolant. If they are weakened then you risk having them break upon assembly or down the road and you risk that they may not be able to sufficiently hold torque to keep the internal head gaskets sealed. Conversely, if they are in good shape and you are doing a head gasket job, then best to leave them alone as there is a risk that they can snap off when removing, opening a can of worms that did not need to be opened. Use 8 per engine.

Please click here for the 175mm stud, or the 191mm stud.

Ref ID: 025101143