{"product_id":"komatsu-4909804","title":"Komatsu 4909804 - Piston - (.020)","description":"\u003cp\u003eA piston for a Komatsu lift truck hydraulic cylinder, carrying the seal package that divides the bore into its two pressure chambers. This part number covers the \u003cstrong\u003e(.020)\u003c\/strong\u003e configuration.\u003c\/p\u003e\u003ch3\u003eKey details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCarries the piston seals and transfers pressure into rod force\u003c\/li\u003e\n\u003cli\u003eDiameter is matched to the cylinder bore it runs in\u003c\/li\u003e\n\u003cli\u003eReplace where seal grooves are damaged or the piston is scored\u003c\/li\u003e\n\u003cli\u003eFit new seals and wear rings whenever the piston is disturbed\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4909804\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eComponent type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCylinder piston\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConfiguration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e(.020)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOEM-grade aftermarket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits brand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eKomatsu\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIndustrial Forklifts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eWhere it is used\u003c\/h3\u003e\u003cp\u003eComponents of this type are fitted to the hydraulic system on Komatsu lift trucks. This is category-level context, not a fitment list — confirm the part number against your machine's model and serial number before ordering.\u003c\/p\u003e\u003ch3\u003eService notes\u003c\/h3\u003e\u003cp\u003eInspect the bore at the same time. A scored piston almost always means the bore has been damaged too, and a new piston in a scored bore will not hold pressure.\u003c\/p\u003e\u003ch3\u003eFitment \u0026amp; availability\u003c\/h3\u003e\u003cp\u003eThis is an \u003cstrong\u003eOEM-grade aftermarket\u003c\/strong\u003e replacement manufactured to OE specification. It is cross-referenced to Komatsu part number \u003cstrong\u003e4909804\u003c\/strong\u003e for identification and is not supplied by the original equipment manufacturer.\u003c\/p\u003e\u003cp\u003eCheck the part number against your model and serial number before ordering. If this item is not showing as available, use \u003cstrong\u003eCheck Availability\u003c\/strong\u003e and our team will confirm lead time and fitment.\u003c\/p\u003e","brand":"Komatsu","offers":[{"title":"Default Title","offer_id":49612423266561,"sku":"4909804","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0815\/8553\/7281\/files\/getimage_9a79d0f5-4a4c-4362-8e93-f55014fcc88b.jpg?v=1783653590","url":"https:\/\/partpilot.com\/products\/komatsu-4909804","provider":"Part Pilot","version":"1.0","type":"link"}