{"product_id":"dramm-mso-piston-repair-kit","title":"Dramm - MSO Piston Repair Kit","description":"\u003ch2\u003eMSO Piston Repair Kit\u003c\/h2\u003e\u003cp\u003eWhen an MSO stops holding pressure, the wet end is almost always the cause. This kit rebuilds it in one pass - piston, packings, the suction valve and the pressure regulator assembly, so you are not ordering parts one at a time and waiting between each.\u003c\/p\u003e\u003cp\u003eThe MSO runs a solid bronze pump on oilless bearings and will hold 500 psi for years, but the piston packings, U packing, valve seats and O rings are wear items and they all age at roughly the same rate. Replacing them together restores original pressure and output. Order this kit rather than individual parts if the machine has lost pressure, is cycling irregularly or is leaking at the pump. The discharge valve is not in the kit - if troubleshooting points there, order it separately.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConfiguration options\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eComplete wet end rebuild kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart numbers\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMS-PRK\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eKit type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePiston and packing rebuild kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIncludes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePiston, piston packings, U packing, cylinder bushing and springs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eValves\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSuction valve and seat, pressure regulator valve and seat, seat packing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSeals\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eO rings and spring retainer hardware\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNot included\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDischarge valve, plunger, guide ring and spacer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDramm MSO sprayers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePump\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSolid bronze construction with oilless bearings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRestores\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFull adjustable pressure up to 500 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePiston, packings, suction valve and pressure regulator in one kit\u003c\/li\u003e\n\u003cli\u003eRestores original pressure and output\u003c\/li\u003e\n\u003cli\u003eAvoids ordering wear parts one at a time\u003c\/li\u003e\n\u003cli\u003eFits the Dramm MSO solid bronze pump\u003c\/li\u003e\n\u003cli\u003eDischarge valve is listed separately if troubleshooting points there\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eIdeal Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eRebuilding an MSO that will not hold pressure\u003c\/li\u003e\n\u003cli\u003eCorrecting irregular pump cycling\u003c\/li\u003e\n\u003cli\u003eStopping a leak at the pump\u003c\/li\u003e\n\u003cli\u003eEnd of season preventive rebuild\u003c\/li\u003e\n\u003cli\u003eSpare kit for a fleet of MSO sprayers\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eThe MSO pressure gauge kit and replacement trigger guns are available separately.\u003c\/em\u003e\u003c\/p\u003e","brand":"Dramm","offers":[{"title":"Complete wet end rebuild kit","offer_id":52798246191415,"sku":"MS-PRK","price":244.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/0341\/5863\/files\/MS-PRK_mso_wet_end_exploded.png?v=1786404491","url":"https:\/\/www.blacklabelsupply.io\/products\/dramm-mso-piston-repair-kit","provider":"BLACK LABEL","version":"1.0","type":"link"}