{"product_id":"arm-cylinder-seal-kit-707-99-67280-for-komatsu-pc300-pc350-excavator","title":"arm-cylinder-seal-kit-707-99-67280-komatsu-pc300-pc350-excavator","description":"\u003ch1 data-section-id=\"xm4euj\" data-start=\"1429\" data-end=\"1454\" class=\"PDq2pG_selectionAnchorContainer\"\u003e\n\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1431\" data-end=\"1454\"\u003eProduct Description\u003c\/strong\u003e\u003c\/span\u003e\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003cp data-start=\"1456\" data-end=\"1492\"\u003e\u003cstrong data-start=\"1456\" data-end=\"1470\"\u003ePart Name:\u003c\/strong\u003e Arm Cylinder Seal Kit\u003c\/p\u003e\n\u003cp data-start=\"1494\" data-end=\"1526\"\u003e\u003cstrong data-start=\"1494\" data-end=\"1513\"\u003ePart Number(s):\u003c\/strong\u003e 707-99-67280\u003c\/p\u003e\n\u003cp data-start=\"1528\" data-end=\"1560\"\u003e\u003cstrong data-start=\"1528\" data-end=\"1552\"\u003eBrand Compatibility:\u003c\/strong\u003e Komatsu\u003c\/p\u003e\n\u003cp data-start=\"1562\" data-end=\"1599\"\u003e\u003cstrong data-start=\"1562\" data-end=\"1579\"\u003eMachine Type:\u003c\/strong\u003e Hydraulic Excavator\u003c\/p\u003e\n\u003cp data-start=\"1601\" data-end=\"1646\"\u003e\u003cstrong data-start=\"1601\" data-end=\"1615\"\u003eComponent:\u003c\/strong\u003e Arm (Stick) Hydraulic Cylinder\u003c\/p\u003e\n\u003cp data-start=\"1648\" data-end=\"1683\"\u003e\u003cstrong data-start=\"1648\" data-end=\"1670\"\u003eCylinder Assembly:\u003c\/strong\u003e 207-63-02541\u003c\/p\u003e\n\u003cp data-start=\"1685\" data-end=\"1709\"\u003e\u003cstrong data-start=\"1685\" data-end=\"1699\"\u003eCondition:\u003c\/strong\u003e Brand New\u003c\/p\u003e\n\u003cp data-start=\"1711\" data-end=\"1853\"\u003e\u003cstrong data-start=\"1711\" data-end=\"1724\"\u003eShipping:\u003c\/strong\u003e Fast worldwide shipping with secure packaging, reliable international logistics and estimated delivery within 2–7 business days.\u003c\/p\u003e\n\u003cp data-start=\"1855\" data-end=\"2537\"\u003eThe \u003cstrong data-start=\"1859\" data-end=\"1897\"\u003e707-99-67280 Arm Cylinder Seal Kit\u003c\/strong\u003e is manufactured to OEM specifications for the \u003cstrong data-start=\"1944\" data-end=\"1978\"\u003earm (stick) hydraulic cylinder\u003c\/strong\u003e fitted to selected \u003cstrong data-start=\"1998\" data-end=\"2073\"\u003eKomatsu PC300-6, PC300LC-6, PC350-6, PC350LC-6 and PC380LC-6 excavators\u003c\/strong\u003e. Designed for \u003cstrong data-start=\"2088\" data-end=\"2122\"\u003ecylinder assembly 207-63-02541\u003c\/strong\u003e, this complete overhaul kit contains precision seals, wear rings, backup rings and O-rings required to restore hydraulic sealing, maintain operating pressure and eliminate internal and external hydraulic oil leakage. The kit is engineered for hydraulic cylinders with a \u003cstrong data-start=\"2393\" data-end=\"2430\"\u003e110 mm piston rod and 160 mm bore\u003c\/strong\u003e, ensuring reliable performance in demanding excavation environments. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"2539\" data-end=\"3130\"\u003eThe arm cylinder controls the movement of the excavator stick, allowing accurate trenching, loading, grading and material handling. As the cylinder operates under continuous high pressure and heavy working loads, its sealing components gradually wear due to contamination, shock loading and repeated operating cycles. Worn seals can cause oil leakage, stick drift, loss of digging force and slow hydraulic response. Replacing the complete seal kit restores hydraulic efficiency, protects internal cylinder components and helps maximise machine productivity while reducing unplanned downtime.\u003c\/p\u003e\n\u003cp data-start=\"3132\" data-end=\"3156\"\u003e\u003cstrong data-start=\"3132\" data-end=\"3156\"\u003eTypical Applications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"3158\" data-end=\"3292\"\u003eConstruction • Earthmoving • Mining • Quarrying • Civil Infrastructure • Trenching • Demolition • Heavy Excavation • Material Handling\u003c\/p\u003e\n\u003cp data-start=\"3294\" data-end=\"3313\"\u003e\u003cstrong data-start=\"3294\" data-end=\"3313\"\u003eCommon Symptoms\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"3315\" data-end=\"3556\"\u003e\n\u003cli data-section-id=\"5shgn8\" data-start=\"3315\" data-end=\"3360\"\u003eHydraulic oil leakage from the arm cylinder\u003c\/li\u003e\n\u003cli data-section-id=\"8jea4t\" data-start=\"3361\" data-end=\"3388\"\u003eStick drifting under load\u003c\/li\u003e\n\u003cli data-section-id=\"c9ipcs\" data-start=\"3389\" data-end=\"3412\"\u003eReduced digging force\u003c\/li\u003e\n\u003cli data-section-id=\"qc5y9m\" data-start=\"3413\" data-end=\"3447\"\u003eSlow arm extension or retraction\u003c\/li\u003e\n\u003cli data-section-id=\"5jk99x\" data-start=\"3448\" data-end=\"3484\"\u003eInternal hydraulic pressure bypass\u003c\/li\u003e\n\u003cli data-section-id=\"f19xul\" data-start=\"3485\" data-end=\"3524\"\u003eDifficulty maintaining stick position\u003c\/li\u003e\n\u003cli data-section-id=\"eebs4v\" data-start=\"3525\" data-end=\"3556\"\u003eReduced excavation efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"3558\" data-end=\"3590\"\u003e\u003cstrong data-start=\"3558\" data-end=\"3590\"\u003eCross-Reference Part Numbers\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"3592\" data-end=\"3625\"\u003e\u003cstrong data-start=\"3592\" data-end=\"3612\"\u003eOEM Part Number:\u003c\/strong\u003e 707-99-67280\u003cstrong data-start=\"3627\" data-end=\"3660\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"3722\" data-end=\"3743\"\u003e\u003cstrong data-start=\"3722\" data-end=\"3743\"\u003eCompatible Models\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"3745\" data-end=\"3832\"\u003e\u003cstrong data-start=\"3745\" data-end=\"3770\"\u003eHydraulic Excavators:\u003c\/strong\u003e Komatsu PC300-6, PC300LC-6, PC350-6, PC350LC-6 and PC380LC-6.\u003c\/p\u003e\n\u003cp data-start=\"3834\" data-end=\"3850\"\u003e\u003cstrong data-start=\"3834\" data-end=\"3850\"\u003eFitment Note\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"3852\" data-end=\"4189\"\u003ePlease verify the OEM part number, machine model, serial number and \u003cstrong data-start=\"3920\" data-end=\"3960\"\u003earm cylinder assembly (207-63-02541)\u003c\/strong\u003e before ordering. Komatsu may use different hydraulic cylinder configurations depending on machine serial number and production specification. Contact Imara Engineering Supplies if you require assistance confirming compatibility.\u003c\/p\u003e","brand":"Imara Engineering Supplies","offers":[{"title":"Default Title","offer_id":45129190670536,"sku":"707-99-67280","price":210.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0600\/5348\/7816\/files\/Dump_Cylinder_Seal_Kit_707-99-68430_for_Komatsu_Construction_Equipment1.jpg?v=1784561482","url":"https:\/\/imaraengineeringsupplies.com\/products\/arm-cylinder-seal-kit-707-99-67280-for-komatsu-pc300-pc350-excavator","provider":"Imara Engineering Supplies","version":"1.0","type":"link"}