PSS HS 3-1/4" Shaft Seal 4-1/2" Stern Tube proboat Allen 16mm Lightweight Plain Bearing 80 L per stroke* 0

80 L per stroke* 0

sailboats or small watercraft that do not have a chartplotter

and open up the central screw-hole bosses

1") Depth 32mm (1-1/4") decorateTable('product-attribute-specs-table')

PSS HS 3-1/4" Shaft Seal 4-1/2" Stern Tube proboat Allen 16mm Lightweight Plain Bearing 80 L per stroke* 0The PSS (Packless Sealing System) shaft seal is designed as a maintenance free alternative to the traditional packing glands and stuffing boxes. The PSS does not require a greaser drip to lubricate the shaft, if does not require packing and it doesn't need adjusting or maintaining once installed. The design of the PSS seal makes it 100% watertight when installed correctly to prevent water leaking into the bilge, and it also protects the propeller