Baldor Electric Motors is no longer manufacturing this motor, possible replacement is the following Baldor Electric Motors part#
EJPM4106T
*** This motor has been replaced by model # EJPM4106T ***
JPM4106T, 20 Hp, 3600 Rpm, 256JP FR, 208-230/460 Vac, 3 PH, TEFC, Foot Mounted, Close-Coupled Pump Motor,