British Seagull® Outboard QB Series Cylinder Base Stud locates in the cylinder so the British Seagull Outboard QB Series Crankcase can be fixed in place housing the British Seagull Outboard Crankshafts that is connected to the piston within the cylinder on QB Series engines only.
The crankcase is fixed in place with the British Seagull Outboard QB Series Cylinder Nut and British Seagull Outboard Cylinder Washer, with the British Seagull Outboard Cylinder Base Paper Gaskets sat in between.
This British Seagull Outboard part is suitable for QB Series engines only.
Historic Part Number | STDKF010 |