The Volvo Penta Saildrive Propeller Shaft Seal (3593663) is designed to provide a reliable, watertight and oil-tight seal around the propeller shaft on Volvo Penta saildrives . Product Type Propeller shaft oil seal / shaft seal Volvo Penta OEM / Reference Number 3593663 Installation Location Propeller shaft – saildrive housing Compatibility Suitable for Volvo Penta saildrives: 120S 130S MS25S