Sierra 18-99524 Gearcase Filler 3 Gallon Gear Lube Tool

The Sierra 18-99524 is a professional-grade 3-gallon gearcase filler designed to make lower unit maintenance quick and mess-free. This durable tool is essential for efficiently filling and flushing gearcases on a wide range of marine outboards and stern drives.

Key Features:

• 3-gallon translucent plastic reservoir allows easy monitoring of lubricant levels
• Sturdy tear-drop design resists tipping over during use
• Check valve venting system prevents lubricant loss when removing the filler nozzle
• Includes E-Z Fill nozzle assembly and hose assembly for quick connections
• Compatible with most Chrysler, Force, Evinrude, Johnson, Mercury, Mariner, Suzuki, Tohatsu, Volvo Penta, and Yamaha gearcases
• Comes with multiple adapters to fit various lower unit configurations

This gearcase filler replaces CDI Electronics 551-33-1, 551-33GF, and S33 models. The integrated check valve allows you to remove the filler nozzle without losing appreciable amounts of lubricant, making the filling process cleaner and more efficient. Perfect for marine technicians and DIY boat owners who perform their own lower unit service.