I need help identifying the drain plug for the trim/tilt on my 1985 Mariner 75 HP

I have to replace the drain plug for the trim/tilt on my 1985 Mariner 75 HP. There is no listing for this part on the parts diagram. It is found at the very bottom of the starboard trim cylinder (after removing the anode plate) and has a 5/32 Allen wrench fitting. The service manual refers to it as an Allen Plug. The parts diagram shows an Allen Plug, #2, used in several places on the housing, #1, and on the shaft, #8, that appear to be the same as the drain plug. Marineengine.com shows part #2 as a Pipe Plug, Manifold, part #22-56800, which also looks the same as the drain plug. Can anyone confirm that the drain plug is the same as #2 on the parts diagram?

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1985 KMV 17' with a 1985 Mariner 75 HP

Update: I ordered part #22-56800 from marineengine.com and it is the correct part for the hydraulic drain plug. My order was handled quickly and efficiently. Thanks to all.

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