Description

Cylinder Head to Block Stud for the four-cylinder diesel engines – 2.25L and 2.5L naturally-aspirated. The stud threads into the cylinder block deck and, with its nut and washer, clamps the cylinder head and head gasket down onto the block.

Head studs carry the clamping load that seals combustion pressure, coolant and oil at the head-to-block joint. They are tightened to the specified torque in sequence so clamping force is spread evenly across the gasket. A stretched, seized or corroded stud can allow gasket failure, coolant loss into the bores and loss of compression, so studs are inspected whenever the head is removed.