Popular center discharge pump wet end by Waterway, less unions or motor.
Suction and discharge are both 1-1/2 inch FIPT or 1-1/2 inch union.
This wet end has 4 screws in the front cover.
 

Waterway 1-1/2" Wet End

1-1/2 HP, Center Discharge

2 HP, Center Discharge

Side Discharge Wet End, High Flow version. 2 inch union suction with 2 inch union discharge or discharge can receive a 1-1/2 inch FIPT fitting.  Less unions or motor.
 

2 hp Hi-Flo, 2" Suction x 2" Side Discharge

3 hp Hi-Flo, 2" Suction x 2" Side Discharge

4 hp Hi-Flo, 2" Suction x 2" Side Discharge

Executive brand side discharge pump wet end by Waterway. 2.5 inch union suction X 2 inch union discharge.
Less unions or motor. This wet end fits the larger 56 frame motor only.
 

Complete Wet Ends - Waterway Executive 2-1/2" Suction x 2" Side Discharge

3 hp Executive,  2-1/2" Suction x 2" Side Discharge Wet End

4 hp Executive,  2-1/2" Suction x 2" Side Discharge Wet End

5 hp Executive,  2-1/2" Suction x 2" Side Discharge Wet End

 
- wide bolt pattern - 56 frame bolt pattern 
which measures, center to center across the top two thru-bolts, apox 4-1/8 inches apart. (red arrow)
or apox 5-13/16 inches across, intersecting the motor shaft. (blue arrow)
 

Repair Parts for Executive Wet Ends

2 HP Impeller

3 HP Impeller

4 HP Impeller

5 HP Impeller

Wear Ring - 1HP, 2HP and 3 HP

Wear Ring - 3HP and 4 HP

O-Ring Volute

 

Need a Motor to match the Executive Wet End ?                     

Motor, 3 hp 2 speed, 230 v, 56 frame

Motor, 4 hp 2 speed, 230 v, 56 frame

Motor, 5 hp 2 speed, 230 v , 56 frame    

Motor, 4 hp 1 speed, 230 v, 56 frame