The MTH 051 Series regenerative turbine pumps have been discontinued and are fully replaced by the T51 Series. If you encounter a 051 pump in the field, this page provides the direct crossover information required to select the proper T51 replacement model. The T51 Series maintains the proven reliability of the original 051 pumps while incorporating updated features to meet today’s system requirements.

051 Performance Curves - 60Hz / 3450RPM

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T51 Performance Curves - 60Hz / 3450RPM

051 to T51 Quick conversion chart

(Please consult factory before making final selection)

Cross-reference at 60Hz / 3450RPM
051 Model	051 HP	T51 Model	T51 HP
051B	1/2 HP	T51B	1/2 HP
	3/4 HP	T51B	3/4 HP
	1 HP	T51B	1 HP
051C	3/4 HP	T51D	3/4 HP
	1 HP	T51D	1 HP
	1 1/2 HP	T51C	1 1/2 HP
051D	3/4 HP	T51E	3/4 HP
	1 HP	T51E	1 1/2 HP
	1 1/2 HP	T51D	1 1/2 HP
	2 HP	T51D	2 HP
051E	3/4 HP	T51J	1 1/2 HP
	1 HP	T51J	1 1/2 HP
	1 1/2 HP	T51J	2 HP
	2 HP	T51G	2 HP
	3 HP	T51E	3 HP
051F	1 1/2 HP	T51L	1 1/2 HP
	2 HP	T51L	3 HP
	3 HP	T51J	3 HP
	5 HP	T51J	5 HP
051G	3 HP	T51M	5 HP
	5 HP	T51M	5 HP
051H	5 HP	T51P	5 HP

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Dimensional Information

Please note that 051 models are configured with top suction (1") and front discharge (1"); whereas, T51 models are front suction (1 1/4") and top discharge (1").

Please consult factory for more dimensional information.

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