This is a Yamaha Outboard Motor Rigging kit for V4/V6 outboard installations.  The part number is 6N6-W0035-40 but that is an inactive part number at this time from Yamaha.   It is likely from the early 90's but the parts are all new.   The box is opened but I don't know if anything is missing (please check photos).  Included are the remote oil tank complete with bracket and harness, 2 gauges (pictured) with harnesses and fuel hose and hose for oil tank.  Rigging instruction book included with misc. clamps and ties.