SPRING - SPOOL (Mitsubishi MB1015579)

A damaged spool spring can cause erratic valve operation or complete loss of control. The SPRING - SPOOL is an aftermarket replacement part, cross-referenced to Mitsubishi part number MB1015579. This spring type provides the mechanical force needed to return a spool to its neutral position. When the spring weakens or breaks, the spool may stick, leading to unintended actuator movement. In a typical valve assembly, the spring's tension directly affects response timing and precision. Verify the serial number or application, then call (562) 693-7748. This part is cataloged under the Retaining Ring category.

Part number variants: MB1015579, mb1015579