{"product_id":"dewalt-851439-o-ring-replacement-seal","title":"Dewalt 851439 O-ring Replacement Seal","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe DEWALT 851439 is a replacement O-ring designed for use in DEWALT power tools and equipment. O-rings serve as precision seals that prevent fluid or air leakage at joints, fittings, and moving components. This part maintains system pressure and protects internal mechanisms from contamination. Licensed technicians and experienced service professionals install this type of component during routine maintenance or after identifying a compromised seal during inspection. Proper fitment and material compatibility are critical to long-term sealing performance.\u003c\/p\u003e\u003cp\u003eThe DEWALT 851439 O-ring is intended for service and repair applications where the original seal has worn, cracked, or lost its ability to hold pressure. It is suited for use in professional tool repair shops and field service environments where DEWALT equipment is maintained to OEM standards. Consult the applicable DEWALT service manual to confirm this part number corresponds to the specific assembly requiring replacement before ordering.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eOEM-style replacement seal for DEWALT power tools and accessories\u003c\/li\u003e\n\u003cli\u003eMaintains pressure integrity and prevents fluid or air leakage at sealing points\u003c\/li\u003e\n\u003cli\u003eDesigned to restore equipment to factory sealing specifications\u003c\/li\u003e\n\u003cli\u003eDirect replacement reduces downtime during tool service\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement O-ring for DEWALT power tools and accessories. Verify fitment against the applicable DEWALT parts diagram before installation.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eO-ring replacement should be performed by a qualified technician familiar with the specific DEWALT tool assembly. Disconnect and de-energize the tool completely before disassembly. Inspect the seating groove for damage or debris before installing the new O-ring, and apply a compatible lubricant to the ring as specified in the service documentation. Follow all applicable service procedures outlined in the manufacturer service manual.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\u003cli\u003e\n\u003cstrong\u003ePart Type\u003c\/strong\u003e: O-Ring Seal\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: DEWALT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 851439\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DEWALT","offers":[{"title":"Default Title","offer_id":51201140195634,"sku":"851439","price":14.99,"currency_code":"USD","in_stock":true}],"url":"https:\/\/voomisupply.com\/products\/dewalt-851439-o-ring-replacement-seal","provider":"Voomi Supply","version":"1.0","type":"link"}