Amazon.com: NorthStar Pressure Washer Pump - 4000 PSI, 3.5 GPM, Direct Drive, For Use With Gas Pressure Washers, Model Number NSZW3540 : Patio, Lawn & Garden
Please see replacement Item# 1571103. NorthStar Electric Cold Water Pressure Washer — 3000 PSI, 2.5 GPM, 230 Volt | Northern Tool
NORTHSTAR PARTS – Tagged "NORTHSTAR HOT WATER PRESSURE WASHER PARTS" – Arkansas Outdoor Power Equipment