Product Overview
The Heavy Motions 51M-SEC-4B is a precision shaft end cover engineered as a direct aftermarket replacement for Parker 313-5037-401. Designed for 51 Series hydraulic gear pumps and motors, this cover features a 4-bolt “B” flange design, a case drain port, and doweled alignment points to ensure an exact fit and reliable sealing.
Manufactured from durable materials to withstand the rigors of heavy-duty dump and hydraulic systems, the 51M-SEC-4B provides the performance and dependability fleets demand—at a cost-effective aftermarket value.
