Caterpillar

Head Gasket Set: This is an upper end gasket set. It contains such gaskets as the head gasket, valve cover gasket, intake & exhaust manifold gaskets and valve seals (when used)

Lower Gasket Set: This is a lower end gasket set. It contains such gaskets as the oil pan gasket, front & rear crankshaft seals, side cover gaskets, and timing cover gasket.

Full Gasket Set: This is a complete overhaul gasket set. It contains all of the necessary gaskets for a complete engine rebuild. A "Head Set" and a "Lower Set" together make a "Full Set"