{"product_id":"8n-8509","title":"8N-8509","description":"\u003cdiv class=\"productDescription\"\u003e\n\u003cspan style='font-family: \"Google Sans\", Arial, sans-serif; font-size: 20px; font-weight: 600; margin: 24px 0 12px; 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)\"\u003eTechnical Specifications: Caterpillar 8N-8509 Crankcase Explosion Relief Valve\u003c\/span\u003e\u003c\/span\u003e\u003cdiv 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)'\u003eThe Caterpillar 8N-8509 Crankcase Explosion Relief Valve is a critical engine safety device. It is engineered to provide rapid, reliable pressure relief to protect large internal combustion engines from catastrophic structural damage caused by potential pressure buildup or internal explosions within the crankcase.\u003cspan\u003e\u003c\/span\u003e\n\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\u003c\/div\u003e\n\u003cdiv style='font-family: \"Google Sans\", Arial, sans-serif; font-size: 16px; font-weight: 700; margin: 24px 0 12px; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)'\u003e1. Core Dimensions \u0026amp; Weight\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cul 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\u003cspan style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003eLength: 330.20 mm (13.00 in)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"margin: 0 0 12px; 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)\"\u003eWidth: 330.20 mm (13.00 in)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"margin: 0 0 12px; 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)\"\u003eHeight: 203.20 mm (8.00 in)\u003c\/span\u003e\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)\"\u003eNet Weight: 3.58 kg (7.89 lbs)\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\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; font-size: 16px; font-weight: 700; margin: 24px 0 12px; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)'\u003e2. Functional \u0026amp; Safety Specs\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cul 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\u003cspan style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003eApplication Purpose: Mitigates overpressure events within the oil pan \/ crankcase area.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"margin: 0 0 12px; 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)\"\u003eOperation: Automatically vents extreme pressure spikes outward and immediately reseals to prevent external oxygen from entering, minimizing the risk of secondary crankcase explosions.\u003c\/span\u003e\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)\"\u003eDurability: Built to withstand heavy vibration, high thermal cycles, and constant exposure to oil mist and engine gases.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\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; font-size: 16px; font-weight: 700; margin: 24px 0 12px; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)'\u003e3. Equipment \u0026amp; Engine Compatibility\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv 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)'\u003eThis safety relief valve is predominantly used on large-bore Caterpillar 3500 and G3500 series industrial, marine, and power-generation platforms:\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cul 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\u003cspan style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003eDiesel Engine Series: CAT 3508, 3512, 3516 (including B, C, and high-displacement sub-variants).\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"margin: 0 0 12px; 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)\"\u003eGas Engine Series: G3508, G3512, G3512E, G3516, G3516B, G3516C, G3516E, G3520B, G3520C, G3520E.\u003c\/span\u003e\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)\"\u003eSystem Group: Typically integrated into the basic engine block structure or as a dedicated valve group attachment (matching the 8N-8510 Valve Group assembly).\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\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; font-size: 16px; font-weight: 700; margin: 24px 0 12px; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)'\u003e4. Part Cross-References\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cul 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\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)\"\u003eAlternative Part Numbers: 8N8509, 8N 8509\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\u003c\/ul\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\u003cbr\u003e\n\u003c\/div\u003e\u003cbr\u003e","brand":"APSS Store","offers":[{"title":"Default Title","offer_id":58260836286767,"sku":"APSS-ITEM-00004737","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0835\/5826\/9231\/files\/BC_Upload_832213a9-8076-4f08-8918-e67f2394980a.png?v=1785229432","url":"https:\/\/onlinestore.apss.com\/fr\/products\/8n-8509","provider":"APSS Store","version":"1.0","type":"link"}