{"product_id":"parker-5209-4-787-hydraulic-hose-coupler-dust-cap-0-5-in","title":"Parker 5209-4-787 Hydraulic Hose Coupler Dust Cap 0.5 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe PARKER 5209-4-787 is a rubber dust cap designed to protect hydraulic hose coupler ends from contamination, debris, and moisture when the hose is disconnected or in storage. This cap fits couplers with a 0.5 inch inside diameter, corresponding to a size 8 hose designation. Keeping coupler faces clean between connections helps prevent particle ingestion into hydraulic systems, which is a leading cause of valve and cylinder wear. Hydraulic technicians and fluid power mechanics install these caps as a standard housekeeping measure on mobile equipment, industrial machinery, and any hydraulic circuit that sees frequent connect-disconnect cycles.\u003c\/p\u003e\n\u003cp\u003eThis dust cap is suited for use in residential, commercial, and industrial hydraulic applications wherever a half-inch coupler end needs to be capped during service, transport, or storage. Typical scenarios include capping remote hydraulic lines on skid steers, tractors, and other mobile equipment, as well as protecting test port fittings and quick-disconnect ends on stationary hydraulic power units. The rubber construction allows the cap to seat snugly over metal coupler bodies without scratching or damaging sealing surfaces.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eFits 0.5 inch inside diameter coupler ends, size 8 hose designation\u003c\/li\u003e\n  \u003cli\u003eRubber construction provides flexible, snug fit over metal coupler bodies\u003c\/li\u003e\n  \u003cli\u003eProtects coupler face and seals from dirt, debris, and moisture during disconnect\u003c\/li\u003e\n  \u003cli\u003eLightweight at 0.01 pounds, suitable for keeping multiples on hand in a service kit\u003c\/li\u003e\n  \u003cli\u003eSold individually, minimum order quantity of 5 units\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style protective cap for hydraulic hose couplers with a 0.5 inch inside diameter and a size 8 hose designation.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation requires no tools. Depressurize and isolate the hydraulic circuit fully before disconnecting any hose end, then wipe the coupler face clean before seating the cap. Ensure the cap is fully seated before moving or storing the hose assembly. Inspect caps for cracking or deformation before reuse, as degraded rubber will not seal the coupler face reliably.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFitting Type\u003c\/strong\u003e: Coupler Dust Cap\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHose Inside Diameter\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHose Size\u003c\/strong\u003e: 8\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoupler Size\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Rubber\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 5\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: PARKER\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 5209-4-787\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PARKER","offers":[{"title":"Default Title","offer_id":51541536932146,"sku":"5209-4-787","price":73.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b516d2e680427be8cf3f9b3e3b142827.jpg?v=1785878750","url":"https:\/\/voomisupply.com\/products\/parker-5209-4-787-hydraulic-hose-coupler-dust-cap-0-5-in","provider":"Voomi Supply","version":"1.0","type":"link"}