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The MI-T-M 49-0123 is a replacement check valve spring designed for use in pressure washers and similar high-pressure fluid systems. The check valve spring maintains proper valve seating tension, ensuring one-directional flow control and preventing backflow within the pump assembly. This component is a direct OEM replacement part, intended for service technicians and equipment repair professionals performing pump maintenance or rebuilds on MI-T-M equipment.
Check valve springs are a routine service item in pressure washer pump maintenance. When pump output pressure drops, pulsates, or the unit loses prime, worn or fatigued check valve springs are a common root cause. Replacing this spring as part of a check valve service kit or full pump rebuild restores proper pump seating function and system pressure.
Designed as an OEM-style replacement check valve spring for MI-T-M pressure washer pump assemblies. Consult the MI-T-M parts diagram for your specific model to confirm fitment before installation.
Installation should be performed by a qualified service technician familiar with high-pressure pump systems. Before beginning service, relieve all system pressure, disconnect the power source, and shut off the water supply. Refer to the MI-T-M service manual for the correct check valve assembly procedure and torque sequence for pump head fasteners. Inspect check valve seats and o-rings for wear while the assembly is open and replace as needed.
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