Bring 15 Steam Pump Parts to Mack Diver at Zabra'jin in Zangarmarsh.
The swamp gas is truly amazing, and can be very useful, mon! But first, you gotta be able to suck it up, and that, my friend, requires a Zapthrottle Mote Extractor.
Now, I could just give you the schematics, but I'll need something in return first. How about some spare parts? Last time I checked, there were plenty lying around near the broken steam pump at the Dead Mire, far to the northeast.
I heard that the withered giants spread the pieces all over that dried-out lake bed.