Gear Lube Monitor Bottle Reservoir For Mercury & Mercruiser – Replacement For 806193A4, 806193A3

Keep an eye on your outboard or sterndrive gear oil with this replacement monitor bottle. It's a direct fit for many Mercury and Mercruiser engines, replacing part numbers like 806193A4 and 806193A3. The transparent bottle lets you easily check the fluid level and condition, so you can spot leaks or low oil before they cause damage. Installation is simple – just disconnect the old bottle and lines, and connect this one. Always double-check your engine's model, serial number, and existing part number to ensure compatibility. A small but crucial component for maintaining proper lubrication and preventing gearcase failure. Sold as the reservoir bottle only; lines and fittings may need to be reused. A must-have for boat owners who do their own maintenance.