lower oil pan config / orientation is relative to the excavator model as versus the engine model ie.
As for parts details
EX5600-7 & 3600-7 – forward hanging oil pan – parts listing the same….
EX2600-7 – rear hanging oil pan – majority of parts the same with exception of pick up pipe / basket / bolts / extra o’ring as below.….
See below appears the forward pan version has some form of one-piece bent style pick up as versus the rear hanging pan is straight an in 2 pieces…