Jet Pump Duty by Emerson Motor. Model #T55CXBMN-987.  Bought this for my Franklin J-Class H410-16 91321968 Booster Pump which uses this motor.  I intended to use this for my water tank when I was living in the Santa Cruz Mountains but the shaft drive broke while trying to remove the old one, needed to get a new booster pump.  May work on other pumps.

Bolt pattern is 10.7 cm across.