POWER TRANSMISSION APPARATUS

A power transmission apparatus includes: an input shaft (11a); a selectable one-way clutch (7); a housing case (8); a center support (91); a lubricating oil reservoir (92); and an oil passage (94). The oil passage (94) extends through a pocket plate (71) disposed between the lubricating oil reservoir (92) and a selector plate (71). The selector plate (73) includes a through-hole (73a). The through-hole (73a) is located at a position where the through-hole (73a) is not lined up with the opening of the oil passage (94) in a radial direction and a circumferential direction of the selector plate (73) in the non-engagement state of the selectable one-way clutch (7), and also at a position where the through-hole (73a) is lined up with the opening of the oil passage (94) in the radial direction and the circumferential direction of the selector plate (73) in the engagement state of the selectable one-way clutch (7).