Sea Water Pump Repair Kit for Yanmar Marine 721390-42701 3QM 3QM30 3QM30Y

  

The 2QM, 2QM20, 2QM20Y, 3QM, 3QM30, 3QM30Y series have 2 pump sizes available, each with 3 versions, flat cover (short shaft), raised. Cover (extended shaft), and dual impeller bilge pump with. The small pump has a cover diameter of 2-3/4 (70mm) with a 6 blade impeller. The big pump has a cover.

That means there are 6 different pump repair kits. If you are unsure, please send a photo along with any other info you have, and I will reply with a link to the correct kit. Major Repair Kit For Yanmar Models: 3QM, 3QM30, 3QM30Y with pump. This pump has a 6 bolt flat cover with a 3.42.

Diameter, 12 blade impeller (5/8" Bore) 1-1/4" deep. Only fits pumps with 3.42. (87mm) Cover Diameter, some models have more than one pump available.

It will not fit the smaller pump that uses a 6 blade impeller and has a cover diameter of. Has keyway groove to fit 5/8 shaft with a drive key. You should see 4 options at checkout (just before you pay), the default may not be the best option. Message me with your address if arrival is critical. Friday 4PM to Monday 4PM arrives Wednesday.