Multi-part piston for an internal combustion engine and method for its production

A multi-part piston for an internal combustion engine, comprising:

• an upper piston part comprising a piston crown, a first inner support element, and a first outer support element, and a lower piston part,
• a lower piston part comprising a second inner support element, a second outer support element, pin boss supports and pin bosses connected with said pin boss supports,
• wherein said first and second inner support elements and first and second outer support elements delimit an outer circumferential cooling channel,
• wherein said first and second inner support elements delimit a cavity that is open toward the pin bosses, and
• wherein said cavity is provided with a separate cooling oil collector, said separate cooling oil collector having at least one cooling opening
• wherein a holder element extends vertically in the cavity in a direction of the lower piston part, from an underside of the piston crown,
• wherein the cooling oil collector is supported against the holder element in an axial direction, with at least one of a force fit and a shape fit,
• wherein an end of the holder element that projects into the cavity has a circumferential contact shoulder that surrounds a projection, said shoulder resting on the cooling oil collector, and
• wherein the projection engages into a bore provided in the cooling oil collector.