{"product_id":"caterpiller-9y0635","title":"CATERPILLER 9Y0635","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 9Y-0635 Exhaust Valve is a high-temperature, fluid-dynamic combustion control hardware component. It is engineered to manage precision exhaust gas evacuation, maintain tight positive sealing under extreme thermal expansion, and resist corrosive combustion gases across high-displacement internal combustion engines subject to relentless mechanical pounding and intensive operational loading.\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)\"\u003eValve Head Outside Diameter (OD): 41.50 mm (1.634 in)\u003cbr style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003eStem Diameter: 9.46 mm (0.372 in)\u003cbr style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003eOverall Length: 202.00 mm (7.953 in)\u003cbr style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003eComponent Type: Engine Head Exhaust Valve\u003cbr style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003eApplication Target: Cylinder head exhaust valvetrain assembly\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 heat-resistant stellite or cobalt-alloy based construction designed for extreme thermal cycles.\u003cbr style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003eCoating \u0026amp; Finish: Hard-chrome plated stem and micro-polished valve face execution to minimize friction wear, structural micro-pitting, and premature valve guide wear.\u003cbr style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003eManufacturing Standards: Fully engineered and certified under ISO 9001 systems to resist high-temperature oxidation, tight clearance galling, and rapid mechanical impact fatigue.\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 high-durability cylinder head exhaust valve is standard heavy-duty hardware deployed across a vast selection of large-scale Caterpillar heavy machinery, earthmovers, marine crafts, and industrial power generation platforms:\u003cbr style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003eEngine Platforms: Deployed heavily inside the cylinder head assemblies of Caterpillar 3400-series engine configurations, explicitly supporting 3406, 3406B, 3406C, 3408, 3408B, 3412, and 3412C diesel and marine propulsion setups.\u003cbr style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003eHeavy Earthmovers \u0026amp; Track Dozers: Widely used within the main engine bays of heavy crawler fleets and heavy infrastructure machines, including the Caterpillar D8R, D8N, D9N, D9R, D10N, and D10R track-type tractor divisions.\u003cbr style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003eUltra-Class Mining Trucks \u0026amp; Loaders: Deployed across high-horsepower mining equipment groups, including primary propulsion networks for CAT 769C, 769D, 773B, 773D, 777, and 777B mechanical-drive haul trucks, as well as 988B, 988F, 990, and 992C wheel loader fleets.\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: Engine Head Exhaust Valve, Exhaust Valve, Valve-Exhaust.\u003cbr style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003eAlternative Part Numbers: 9Y0635, 9Y-0635, 4W-4458, 4W4458, PAI 392150.\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; font-size: 16px; margin: 12px 0 16px; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)'\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003cbr\u003e","brand":"APSS Store","offers":[{"title":"Default Title","offer_id":58617649398063,"sku":"APSS-ITEM-00007540","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0835\/5826\/9231\/files\/BC_Upload_8b3c1d18-ca94-47b3-937e-dfde14a19149.png?v=1791365385","url":"https:\/\/onlinestore.apss.com\/fr\/products\/caterpiller-9y0635","provider":"APSS Store","version":"1.0","type":"link"}