Yamaha 6Y5-83653-20-00 Trim and Oil Harness - 23' - Used on 2005 and Newer Yamaha Outboard models with Digital Multifunction Gauges. This harness transfers trim and tilt level as well as oil pressure and other important information to Digital Multifunction tachometers. This 6Y5-83653-00-00 Trim and Oil Harness is 23' long In twin engine applications, you will need two harnesses. One for each engine. This harness can be used with side mount and binnacle mount Yamaha control box applications.