Volvo Penta Stuffing Box for shaft diameter of 25mm and a sleeve diameter of 42mm. On the seal edge is part number 828081.This is the moulded packing or stuffing box for the prop shaft. Simple, This packing box is specifically dimensioned for Volvo Penta propeller shafts and sleeves. Supplied complete with installation tools and a tube of grease.Shaft Diameter: 25mmSleeve Diameter: 42mm (Tolerance +0.5/ -0.3)Measurement A: 36mmMeasurement B: 66mmVolvo Penta Part No: 828254. (828081 on the seal)