CDI Electronics 551334M Outdrive Lube Fill Tool with Check Valve

The CDI Electronics 551334M is a specialized outdrive lubricant filling tool designed to simplify gear oil changes on marine sterndrive and outdrive units. This professional-grade tool features a calibrated check valve that creates an air-lock to prevent lubricant from draining back out while you install the drain plug, eliminating messy spills and wasted fluid.

Key Features:

• Calibrated check valve creates air-lock to retain lubricant during drain plug installation
• Includes 4-foot flexible hose for easy access to fill ports
• Compatible with standard outdrive and lower unit fill ports
• Prevents messy spills and lubricant waste during servicing
• Essential tool for marine mechanics and DIY boat maintenance

This tool makes outdrive maintenance cleaner and more efficient by holding gear oil in place while you secure the drain plug, a common challenge when servicing marine drive units.