When a Pentair system needs a precise pump motor parts replacement, Pentair EQ300/500/750 3PH Motor Hex Bolt 3/8-16 x 1-1/2" SS gives technicians a part-numbered option. This motor hex bolt secures motor-related hardware on EQ300, EQ500, and EQ750 pumps, making it useful for commercial pump repair requiring stainless hardware of the correct size. Designed for compatible Pentair pool and spa equipment Helps support efficient maintenance, rebuilds, or component replacement Useful for restoring the original function of the listed pump motor parts part Use part 350073 when the existing component is worn, cracked, leaking, missing, or no longer performing as intended. Confirming the model and part number before installation helps protect flow, sealing, alignment, and long-term equipment reliability.