{"product_id":"3j7354","title":"3J7354","description":"\u003cdiv class=\"productDescription\"\u003e\n\u003cspan style='font-family: \"Google Sans\", Arial, sans-serif; font-size: 16px; margin: 12px 0 16px; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)'\u003e\u003cspan style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003eThe Caterpillar 3J-7354 O-Ring is a high-integrity, high-durometer hydraulic boss seal. It is engineered to maintain exceptional pressure containment and prevent fluid leakage across straight-thread tube fittings, control valves, and high-pressure fluid passage connections subject to relentless machine vibrations and thermal cycling.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/span\u003e\u003col style='font-family: \"Google Sans\", Arial, sans-serif; font-size: 16px; margin: 12px 0 16px; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)'\u003e\n\u003cli style=\"margin: 0 0 12px; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003e\n\u003cspan style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003eCore Dimensions \u0026amp; Fastener Specs\u003cbr style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003eInside Diameter (ID): 8.92 mm (0.351 in)\u003cbr style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003eCross Section Diameter (CS): 1.83 mm (0.072 in)\u003cbr style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003eOutside Diameter (OD): 12.58 mm (0.495 in)\u003cbr style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003eSAE AS568 Dash Size: -904 (Straight Thread Tube Fitting \/ Boss O-Ring)\u003cbr style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003eHardness (Shore A): 90 Durometer (High Hardness)\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"margin: 0 0 12px; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003e\n\u003cspan style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003eMaterial \u0026amp; Manufacturing Specs\u003cbr style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003eMaterial Grade: Premium high-density Nitrile \/ Buna-N (NBR) rubber elastomer.\u003cbr style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003eCoating \u0026amp; Finish: Specialized friction-reducing surface treatment or identification coating to minimize seal twisting, cutting, and extrusion during high-pressure installation.\u003cbr style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003eSealing Type: High-integrity stationary static boss seal with superior resistance to compression set.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"margin: 0 0 12px; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003e\n\u003cspan style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003eEquipment \u0026amp; System Compatibility\u003cbr style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003eThis specialized hydraulic boss seal is standard heavy-duty hardware deployed across a vast selection of large-scale Caterpillar heavy machinery and high-horsepower engine platforms:\u003cbr style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003eEngine Platforms: Integrated into fuel injection manifolds, oil delivery lines, and cooling passage plugs for CAT 3406, 3408, 3412, C15, and C18 engine series.\u003cbr style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003eHydraulic \u0026amp; Power Train Systems: Extensively used within hydraulic control valves, straight-thread O-ring boss (ORB) adapter fittings, pump interfaces, and transmission control valves across various CAT fleets.\u003cbr style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003eLarge-Scale Equipment: Deployed in fluid circuit connectors, heavy accessory groups, and vital steering\/braking control networks for Caterpillar mining trucks, wheel loaders, and track-type tractors.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"margin: 0 0 12px; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003e\n\u003cspan style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003ePart Cross-References\u003cbr style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003eAlternative Part Names: Straight Thread O-Ring, Boss O-Ring, Hydraulic Fitting Seal.\u003cbr style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003eAlternative Part Numbers: 3J7354, 3J-7354, 185-1153.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cdiv style='font-family: \"Google Sans\", Arial, sans-serif; margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)'\u003e\u003c\/div\u003e\n\u003cdiv style='font-family: \"Google Sans\", Arial, sans-serif; margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)'\u003e\u003cdiv style=\"font-size: 16px; margin: 12px 0 16px; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003cbr\u003e","brand":"APSS Store","offers":[{"title":"Default Title","offer_id":58260930199855,"sku":"APSS-ITEM-00007527","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0835\/5826\/9231\/files\/BC_Upload_8394ff85-a994-448e-8f11-40de8f6f475e.png?v=1785231220","url":"https:\/\/estore.apss-nc.com\/products\/3j7354","provider":"APSS Store","version":"1.0","type":"link"}