The CDI Electronics 551-33-1 Gearcase Filler includes a Robust tear-drop design with drip tray that resists tipping over. The test valve at the vent lets you take away the filler nozzle with out losing any appreciable quantity of lubricant.
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Robust tear-drop design resists tip-over
Vent lets in removal of the filler valve with out losing lubricant
Replaces 551-33GF and S33