Maruyama MSD41 Valve Repair Kit B
Inlet Valve Assembly #639503, quantity 3
Piston Packing #116121, quantity 3
Lock Nut #046365, quantity 3
Viton O-Ring #011686, quantity 3
Viton O-Ring #011377, quantity 3
Valve Seat #044881, quantity 3
Valve Sack #044565, quantity 3
Valve #548608, quantity 3
Spring #541062, quantity 3
Click Here for Maruyama MSD41 Pump parts diagram
NOTE ON REPAIR KITS: We stock the main repair parts for this pump. We have also created 3 repair kits. We created the kits because there are so many small parts to this pump, it is a nightmare to order the individual parts.
Click here to download Maruyama MSD41 Pump Repair Kit Info
For crank case oil, use 10W30. Fill to Red Dot (about .38 liters).
Lubricate Oil Wicks with a few drops of 10W30 oil.
If there is water or chemical mixture in the crank case; drain, flush replace oil.