See the link to a picture of the ported and non ported pumps. A ported pump can handle one or more external hydraulic circuit. It does not define how many circuits are used.
https://onlycubcadets.net/forum/showthread.php?t=4675
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2364i (1541)
Kohler ECH23
Power Steering
54" Deck
451 Snow Blower
42" Plow
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