HydraMaster Relay Switch A/C B/C CDS Base UOM:EACH 4 GPM Pump EPHT1813S is

4 GPM Pump EPHT1813S is the ideal replacement solution for worn pumps in Hydramaster and Sapphire truck-mounted carpet cleaning machines

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We would rather check than have you strip a pump twice

HydraMaster part number 000-157-004

HydraMaster Boxxer 427

HydraMaster Relay Switch A/C B/C CDS Base UOM:EACH 4 GPM Pump EPHT1813S isOverview 12 volt relay switch, listed by HydraMaster as Switch, Relay. Used throughout the machine's electrical control. A failed relay usually presents as one circuit dead pump clutch, APO or a solenoid while everything else works normally. Where it is fitted Electrical Control Panel Assembly 6 per machine Dura Flow APO pump assembly 1 Six in one panel is worth knowing: if you are diagnosing an intermittent electrical fault, swapping a known good