Mercury Merc 500 powerhead mounted on a Mercury Mark 40H Quicksilever tower and with a Mark 40H gear case. Serial number 835625. Has a black wrap and a Mark 55 serial tag with a KD magneto, KA18A fixed jet carbureators, factory seal. The gear case is in nice shape. We quote 10 days for shipping since we wish to provide the proper construction of the wood crate prior to shipping.