{"product_id":"5613471661-brake-backup-ring","title":"561-34-71661 Brake Backup Ring For Komatsu HD785-7 | Ruijueparts","description":"\u003ch2 class=\"sec-head\"\u003eProduct Description\u003c\/h2\u003e\n\u003cdiv class=\"n6owBd awi2gc\"\u003e\n\u003cp\u003e\u003cspan\u003eThis aftermarket 561-34-71661 brake backup ring is referenced for the front axle brake assembly of selected Komatsu HD785-7 mining dump trucks. It is an individual sealing-support component, not a complete hydraulic cylinder repair kit. In a brake-piston sealing arrangement, a backup ring helps support the mating seal under operating pressure and can reduce the risk of seal extrusion when the complete assembly is correctly specified. Before ordering, confirm the machine serial number, front axle brake position, assembly drawing, and the adjacent seal references. Ruijueparts supports part-number verification and multi-item brake-service enquiries.\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%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.7188%;\"\u003e\u003cstrong\u003e\u003cmeta charset=\"utf-8\"\u003ePart Number:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 65.8534%;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e561-34-71661, 5613471661\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.7188%;\"\u003e\u003cstrong\u003e\u003cmeta charset=\"utf-8\"\u003eFits Models:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 65.8534%;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003eHD785-7\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.7188%;\"\u003e\u003cstrong\u003e\u003cmeta charset=\"utf-8\"\u003eBrand:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 65.8534%;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cspan\u003eKomatsu replacement\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.7188%;\"\u003e\u003cstrong\u003e\u003cmeta charset=\"utf-8\"\u003eType:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 65.8534%;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003eBrake Backup Ring\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.7188%;\"\u003e\u003cstrong\u003e\u003cmeta charset=\"utf-8\"\u003e \u003cspan\u003eApplication:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 65.8534%;\"\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003eSystem: Front axle brake sealing assembly.\u003cbr\u003eFunction: Supports the associated sealing element within the brake-piston arrangement during brake-system operation.\u003cbr\u003eEquipment: Selected Komatsu HD785-7 rigid mining dump trucks.\u003cbr\u003eVerification required: Confirm truck serial number, front axle side, and brake assembly reference before ordering.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRigid Mining Dump Truck: HD785-7\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.7188%;\"\u003e\u003cstrong\u003e\u003cmeta charset=\"utf-8\"\u003eSize:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 65.8534%;\"\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\u003cp\u003e1. What is Komatsu 561-34-71661?\u003cbr\u003e561-34-71661 is an individual brake backup ring referenced in selected Komatsu HD785-7 front axle brake assemblies. It is not a complete seal kit.\u003c\/p\u003e\n\u003cp\u003e2. Is this a hydraulic cylinder seal kit?\u003cbr\u003eNo. It is a brake-system sealing component used within the front axle brake assembly. It should not be ordered as a replacement for a boom, bucket, steering, or other hydraulic-cylinder seal kit.\u003c\/p\u003e\n\u003cp\u003e3. Does one ring fit both front brake sides?\u003cbr\u003eThis reference is publicly listed in both left- and right-hand HD785-7 front axle brake diagrams. However, confirm the machine serial number and brake assembly drawing before ordering.\u003c\/p\u003e\n\u003cp\u003e4. What information is needed for fitment checking?\u003cbr\u003eSend the HD785-7 serial number, the front axle brake side, the assembly diagram or old-part photo, and any related seal references. Ruijueparts can help check the correct combination of replacement components.\u003c\/p\u003e","brand":"RuiJueParts","offers":[{"title":"5pcs","offer_id":52641321877735,"sku":"561-34-71661","price":179.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5251\/9399\/files\/561-34-71661.png?v=1789527761","url":"https:\/\/www.ruijueparts.com\/products\/5613471661-brake-backup-ring","provider":"RuiJueParts","version":"1.0","type":"link"}