Sierra 80150P Heavy Duty Series Fuel Gauge A classic line for inboards including diesels, Heavy Duty includes water temperature and oil pressure gauges, ammeters, engine sync gauges and a range of diesel tachometers. Features Classic white graphics and pointer on deep black faces. Low-profile polished stainless bezels. Perimeter lighting and scratch resistant glass lenses. Tachometers for diesels available. Ideal replacement for Stewart-Warner Deluxe instruments. Optional add-on square bezels fo