Stainless Steel Marine Thru-Hull Exhaust / Vent Fitting With Internal Flapper - Used

Application: Stainless steel marine thru-hull style fitting with polished outer bell and an internal hinged plate — most consistent with a transom/hull-side exhaust outlet with flapper, or an engine-room ventilation outlet with damper. Vessel, builder, and exact application are not verified; there are no visible part numbers, tags, or castings on the piece.

Condition: Used take-off, untested. Polished bell is bright with light scuffs; tube section shows dull discoloration and light surface staining. Appears complete and structurally sound, with no cracks or distortion noted. Approximate size: 4 in. tube stub, 6–6.5 in. flange, roughly 7 in. overall length.

Great candidate for a refit, custom exhaust or vent installation, or as a pattern piece when matching an existing fitting.

Buyer must confirm fitment by part number, photos, dimensions, engine model, serial number, and application before purchase.

Used marine part sold as-is unless otherwise stated. No returns on electrical, used, special-order, or installed parts.

Quote is subject to final fitment confirmation by engine/transmission serial number, part number, photos, and supplier availability.