{"product_id":"arm-boom-cylinder-seal-kit-707-99-67090-for-komatsu-pc300-pc400","title":"Arm Boom Cylinder  Seal Kit 707-99-67090 for Komatsu PC300 PC400","description":"\u003ch1 data-section-id=\"xm4euj\" data-start=\"1680\" data-end=\"1705\" class=\"PDq2pG_selectionAnchorContainer\"\u003e\n\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1682\" data-end=\"1705\"\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=\"1707\" data-end=\"1750\"\u003e\u003cstrong data-start=\"1707\" data-end=\"1721\"\u003ePart Name:\u003c\/strong\u003e Arm \u0026amp; Boom Cylinder Seal Kit\u003c\/p\u003e\n\u003cp data-start=\"1752\" data-end=\"1784\"\u003e\u003cstrong data-start=\"1752\" data-end=\"1771\"\u003ePart Number(s):\u003c\/strong\u003e 707-99-67090\u003c\/p\u003e\n\u003cp data-start=\"1786\" data-end=\"1818\"\u003e\u003cstrong data-start=\"1786\" data-end=\"1810\"\u003eBrand Compatibility:\u003c\/strong\u003e Komatsu\u003c\/p\u003e\n\u003cp data-start=\"1820\" data-end=\"1857\"\u003e\u003cstrong data-start=\"1820\" data-end=\"1837\"\u003eMachine Type:\u003c\/strong\u003e Hydraulic Excavator\u003c\/p\u003e\n\u003cp data-start=\"1859\" data-end=\"1930\"\u003e\u003cstrong data-start=\"1859\" data-end=\"1873\"\u003eComponent:\u003c\/strong\u003e Arm (Stick) Hydraulic Cylinder \/ Boom Hydraulic Cylinder\u003c\/p\u003e\n\u003cp data-start=\"1932\" data-end=\"1956\"\u003e\u003cstrong data-start=\"1932\" data-end=\"1949\"\u003eRod Diameter:\u003c\/strong\u003e 110 mm\u003c\/p\u003e\n\u003cp data-start=\"1958\" data-end=\"1983\"\u003e\u003cstrong data-start=\"1958\" data-end=\"1976\"\u003eCylinder Bore:\u003c\/strong\u003e 160 mm\u003c\/p\u003e\n\u003cp data-start=\"1985\" data-end=\"2009\"\u003e\u003cstrong data-start=\"1985\" data-end=\"1999\"\u003eCondition:\u003c\/strong\u003e Brand New\u003c\/p\u003e\n\u003cp data-start=\"2011\" data-end=\"2132\"\u003e\u003cstrong data-start=\"2011\" data-end=\"2024\"\u003eShipping:\u003c\/strong\u003e Fast worldwide shipping with secure packaging and reliable international delivery within 2–7 business days.\u003c\/p\u003e\n\u003cp data-start=\"2134\" data-end=\"2819\"\u003eThe \u003cstrong data-start=\"2138\" data-end=\"2183\"\u003e707-99-67090 Arm \u0026amp; Boom Cylinder Seal Kit\u003c\/strong\u003e is manufactured to OEM specifications for selected \u003cstrong data-start=\"2235\" data-end=\"2330\"\u003eKomatsu PC300-7, PC300-8, PC300LC-7, PC300LC-8, PC340LC-7, PC400-7 and PC400LC-7 excavators\u003c\/strong\u003e. This complete overhaul kit contains the seals, wear rings, backup rings, guide rings and O-rings required to restore the sealing performance of compatible \u003cstrong data-start=\"2487\" data-end=\"2531\"\u003earm (stick) cylinders and boom cylinders\u003c\/strong\u003e, depending on the hydraulic cylinder assembly fitted to the machine. Designed for cylinders with a \u003cstrong data-start=\"2631\" data-end=\"2668\"\u003e110 mm piston rod and 160 mm bore\u003c\/strong\u003e, it restores hydraulic efficiency, prevents internal and external oil leakage and extends cylinder service life. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"2821\" data-end=\"3391\"\u003eOn PC300-series excavators, this seal kit is commonly used for \u003cstrong data-start=\"2884\" data-end=\"2909\"\u003earm (stick) cylinders\u003c\/strong\u003e, which control stick extension and retraction during digging, trenching and loading. On selected PC400-series machines, the same OEM seal kit is used in \u003cstrong data-start=\"3063\" data-end=\"3081\"\u003eboom cylinders\u003c\/strong\u003e, which raise and lower the excavator's main boom during heavy lifting and excavation. This shared application is possible because the cylinders use the same sealing profile and dimensions, although compatibility depends on the cylinder assembly and machine serial number. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"3393\" data-end=\"3417\"\u003e\u003cstrong data-start=\"3393\" data-end=\"3417\"\u003eTypical Applications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"3419\" data-end=\"3561\"\u003eConstruction • Earthmoving • Mining • Quarrying • Demolition • Civil Infrastructure • Road Construction • Heavy Excavation • Material Handling\u003c\/p\u003e\n\u003cp data-start=\"3563\" data-end=\"3582\"\u003e\u003cstrong data-start=\"3563\" data-end=\"3582\"\u003eCommon Symptoms\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"3584\" data-end=\"3860\"\u003e\n\u003cli data-section-id=\"1a9kxme\" data-start=\"3584\" data-end=\"3637\"\u003eHydraulic oil leakage from the arm or boom cylinder\u003c\/li\u003e\n\u003cli data-section-id=\"upupon\" data-start=\"3638\" data-end=\"3671\"\u003eArm or boom drifting under load\u003c\/li\u003e\n\u003cli data-section-id=\"zdsbcj\" data-start=\"3672\" data-end=\"3712\"\u003eReduced digging or lifting performance\u003c\/li\u003e\n\u003cli data-section-id=\"xewhgm\" data-start=\"3713\" data-end=\"3752\"\u003eSlow cylinder extension or retraction\u003c\/li\u003e\n\u003cli data-section-id=\"5jk99x\" data-start=\"3753\" data-end=\"3789\"\u003eInternal hydraulic pressure bypass\u003c\/li\u003e\n\u003cli data-section-id=\"c2fuke\" data-start=\"3790\" data-end=\"3813\"\u003eReduced holding force\u003c\/li\u003e\n\u003cli data-section-id=\"1kju0im\" data-start=\"3814\" data-end=\"3860\"\u003ePremature cylinder wear due to damaged seals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"3862\" data-end=\"3894\"\u003e\u003cstrong data-start=\"3862\" data-end=\"3894\"\u003eCross-Reference Part Numbers\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"3896\" data-end=\"3929\"\u003e\u003cstrong data-start=\"3896\" data-end=\"3916\"\u003eOEM Part Number:\u003c\/strong\u003e 707-99-67090\u003c\/p\u003e\n\u003cp data-start=\"4026\" data-end=\"4047\"\u003e\u003cstrong data-start=\"4026\" data-end=\"4047\"\u003eCompatible Models\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"4049\" data-end=\"4156\"\u003e\u003cstrong data-start=\"4049\" data-end=\"4074\"\u003eHydraulic Excavators:\u003c\/strong\u003e Komatsu PC300-7, PC300-8, PC300LC-7, PC300LC-8, PC340LC-7, PC400-7 and PC400LC-7.\u003c\/p\u003e\n\u003cp data-start=\"4158\" data-end=\"4174\"\u003e\u003cstrong data-start=\"4158\" data-end=\"4174\"\u003eFitment Note\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"4176\" data-end=\"4569\"\u003ePlease verify the OEM part number, machine model, serial number and hydraulic cylinder assembly before ordering. \u003cstrong data-start=\"4289\" data-end=\"4305\"\u003e707-99-67090\u003c\/strong\u003e is used on both \u003cstrong data-start=\"4322\" data-end=\"4347\"\u003earm (stick) cylinders\u003c\/strong\u003e and \u003cstrong data-start=\"4352\" data-end=\"4370\"\u003eboom cylinders\u003c\/strong\u003e depending on the excavator model and cylinder configuration. Confirm the cylinder assembly or contact Imara Engineering Supplies for assistance before purchase. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Imara Engineering Supplies","offers":[{"title":"Default Title","offer_id":45129190539464,"sku":"707-99-67090","price":211.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0600\/5348\/7816\/files\/Bucket_Cylinder_Seal_Kit_707-99-66380_for_Komatsu_WA430-6_Wheel_Loader.png?v=1784749445","url":"https:\/\/imaraengineeringsupplies.com\/products\/arm-boom-cylinder-seal-kit-707-99-67090-for-komatsu-pc300-pc400","provider":"Imara Engineering Supplies","version":"1.0","type":"link"}