Port side Pioneer Boats aft bottom seat cushion. Possibly fits Islander models. This item was obtained from a closed Pioneer Boats dealer. There is no part number available. Please look at the photos carefully and compare the measurements to determine if this is correct for your application. Please ask questions before ordering because this seat part is being sold as-is and is not returnable. This item is more than likely a new part but because there is no original packaging and no identifying tags, it is being sold as used. It is in very nice condition with no rips, tears or damage. Some basic measurements are; 20 1/2" wide at the front of the cushion and 19" deep. Skippers Marine specializes in new old stock, recycled and those hard to find marine parts and accessories. Please check out my other Ebay store items. Don't see what you are looking for? Feel free to send an email request. 2-0946P