Superior material & heat treat process provide 10X better fatigue strength than OEM bolts.
Studs provide improved alignment of cylinder head and gasket for increased reliability and ease of maintenance.
More accurate & consistent torque loading provides a more uniform clamping force on head gasket.
Helps prevent blown head gaskets and assures optimum engine sealing.
Fits all Sea-Doo 1503 & 1630 engines.