{"product_id":"5422590-hydraulic-cylinder-seal-kit","title":"5422590 Hydraulic Cylinder Seal Kit For MST M544 | Ruijueparts","description":"\u003ch2 class=\"sec-head\"\u003eProduct Description\u003c\/h2\u003e\n\u003cdiv class=\"n6owBd awi2gc\"\u003e\n\u003cp\u003e\u003cspan\u003e5422590 is an aftermarket hydraulic cylinder seal kit reference for MST backhoe loaders. Trade catalogs identify it as a “kazayak” cylinder repair kit, while published purchasing records describe it broadly as a boom-cylinder repair kit for an MST 544. As these sources do not establish one standardized English cylinder name, confirm the installed cylinder, parts diagram, and machine serial number before ordering. It is not interchangeable with 5422490 stabilizer\/telescopic or 5422090 loader-lift cylinder kits. Ruijueparts can check references and support multi-SKU purchasing with flexible packaging.\u003c\/span\u003e\u003c\/p\u003e\n\u003cbr\u003e\u003c!--TgQPHd||[]--\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"Fsg96\"\u003e\u003c!--TgQPHd||[]--\u003e\u003c\/div\u003e\n\u003ch2 id=\"s0-2-1-25-5-20-1-101[1]-2-3-7[0]-4[0]-3[0]-11[1]-1-5-title\" class=\"section-title__title\"\u003e\u003cspan class=\"ux-layout-section-module-evo__title\"\u003e\u003cspan class=\"ux-textspans\"\u003eItem specifics\u003c\/span\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003ctable width=\"100%\" style=\"width: 100.088%; height: 324.977px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 22.6641px;\"\u003e\n\u003ctd style=\"width: 33.6518%; height: 22.6641px;\"\u003e\u003cstrong\u003e\u003cmeta charset=\"utf-8\"\u003ePart Number:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"et2\" height=\"17\" width=\"76\" style=\"height: 22.6641px; width: 65.9112%;\"\u003e5422590\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 33.6518%; height: 19.5938px;\"\u003e\u003cstrong\u003e\u003cmeta charset=\"utf-8\"\u003eFits Models:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 65.9112%; height: 19.5938px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cmeta charset=\"utf-8\"\u003eM544\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 33.6518%; height: 19.5938px;\"\u003e\u003cstrong\u003e\u003cmeta charset=\"utf-8\"\u003eBrand:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 65.9112%; height: 19.5938px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e \u003cspan\u003eMASTAS replacement\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 33.6518%; height: 39.1875px;\"\u003e\u003cstrong\u003e\u003cmeta charset=\"utf-8\"\u003eType:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 65.9112%; height: 39.1875px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003eAftermarket Hydraulic Cylinder Seal Kit\u003cbr\u003eHydraulic Cylinder Repair Seal Kit\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 204.344px;\"\u003e\n\u003ctd style=\"width: 33.6518%; height: 204.344px;\"\u003e\u003cstrong\u003e\u003cmeta charset=\"utf-8\"\u003e \u003cspan\u003eApplication:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 65.9112%; height: 204.344px;\"\u003e\n\u003cul\u003e\n\u003cli\u003eFor hydraulic-cylinder resealing service on MST-compatible backhoe loaders. Suitable for repair shops and fleet teams that remove, inspect, reseal, and reinstall the confirmed cylinder assembly. Verify cylinder location and part reference before purchase.\u003c\/li\u003e\n\u003cli\u003eBackhoe Loader: M544\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 33.6518%; height: 19.5938px;\"\u003e\u003cstrong\u003e\u003cmeta charset=\"utf-8\"\u003eSize:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 65.9112%; height: 19.5938px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e \u003cspan\u003eStandard Size\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cspan\u003e\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eFAQ\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eQ1: What cylinder does MST 5422590 fit?\u003c\/strong\u003e\u003cbr\u003e\u003cb\u003eA: \u003c\/b\u003ePublic sources identify it as an MST hydraulic-cylinder repair kit but do not provide one consistently verified English cylinder position. Confirm the installed cylinder and parts diagram before ordering.\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eQ2: Is 5422590 the same as 5422490?\u003cbr\u003e\u003c\/strong\u003e\u003cb\u003eA: \u003c\/b\u003eNo. 5422490 is publicly listed for stabilizer and telescopic-cylinder applications. Do not substitute the two kits based only on the machine model.\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eQ3: Is 5422590 a confirmed boom cylinder seal kit?\u003cbr\u003eA:\u003c\/strong\u003e One published MST 544 purchasing record calls it a boom-cylinder repair kit, while a trade catalogue uses a different local cylinder term. For accuracy, verify the cylinder group with the machine serial number or old kit.\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RuiJueParts","offers":[{"title":"Default Title","offer_id":52515365486823,"sku":"5422590","price":16.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5251\/9399\/files\/5422590.png?v=1787568902","url":"https:\/\/www.ruijueparts.com\/products\/5422590-hydraulic-cylinder-seal-kit","provider":"RuiJueParts","version":"1.0","type":"link"}