{"product_id":"gates-33965-engine-coolant-thermostat-passenger-side","title":"Gates 33965 Engine Coolant Thermostat - Passenger Side","description":"\u003ch2\u003eReliable Cooling Control with Gates Heavy-Duty Thermostat 33965\u003c\/h2\u003e\u003cp\u003eThe Gates Heavy-Duty Thermostat 33965 is engineered to maintain optimal engine temperature for a variety of vehicles. Designed with durable steel and copper materials, this engine coolant thermostat ensures consistent performance under demanding conditions.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eConstructed from steel and copper for durability and heat resistance\u003c\/li\u003e\n\u003cli\u003eOffset reverse poppet design for precise temperature regulation\u003c\/li\u003e\n\u003cli\u003eSealing flange outside diameter of 2.13 inches for secure fitment\u003c\/li\u003e\n\u003cli\u003eHeight between flanges measures 1.1 inches, total height 1.74 inches\u003c\/li\u003e\n\u003cli\u003eEquipped with two jiggle pins\/weep holes to prevent air lock\u003c\/li\u003e\n\u003cli\u003eO-ring seal type for reliable sealing without gaskets\u003c\/li\u003e\n\u003cli\u003eStarts to open at 185°F (85°C) to maintain proper engine temperature\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eAbout the Gates Heavy-Duty Thermostat Product Line\u003c\/h2\u003e\u003cp\u003eThe Heavy-Duty Thermostat line by Gates is designed for vehicles requiring robust cooling system components capable of withstanding high thermal and mechanical stress. This product line focuses on durability and precise temperature control, making it suitable for trucks, SUVs, and other heavy-duty applications where engine cooling reliability is critical.\u003c\/p\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Gates 33965 thermostat features an offset reverse poppet design that enhances coolant flow control and reduces the risk of overheating. Its steel and copper construction provides excellent thermal conductivity and corrosion resistance, extending the life of the thermostat. The unit includes two jiggle pins that allow trapped air to escape, preventing air pockets that can cause engine temperature fluctuations. The O-ring seal ensures a tight fit without the need for additional gaskets, simplifying installation and maintenance. With a sealing flange diameter of 2.13 inches and a height of 1.74 inches, this thermostat fits securely in compatible cooling systems.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents engine overheating by regulating coolant flow\u003c\/li\u003e\n\u003cli\u003eEliminates air lock issues with dual jiggle pins\u003c\/li\u003e\n\u003cli\u003eMaintains consistent engine operating temperature for improved efficiency\u003c\/li\u003e\n\u003cli\u003eReplaces faulty or worn thermostats in heavy-duty vehicles\u003c\/li\u003e\n\u003cli\u003eHelps avoid engine damage caused by improper coolant circulation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eEnsure the cooling system is fully drained before removing the old thermostat. Verify the sealing flange dimensions and height to confirm compatibility with your vehicle’s housing. The Gates 33965 thermostat does not include an installation tool, so use appropriate hand tools to avoid damage during installation. Check the O-ring seal for proper placement to prevent leaks. After installation, refill the cooling system and bleed air pockets to ensure optimal performance.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eGates manufactures the Heavy-Duty Thermostat 33965 to meet stringent quality standards for durability and performance. The thermostat is built to withstand heavy-duty operating conditions and is backed by Gates’ commitment to product reliability. Please refer to Gates’ official warranty documentation for specific coverage details.\u003c\/p\u003e","brand":"Gates","offers":[{"title":"Default Title","offer_id":52078458994869,"sku":"BBSC-33965","price":41.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/ZO_33965_Fro.jpg?v=1775146622","url":"https:\/\/www.partcatalog.com\/products\/gates-33965-engine-coolant-thermostat-passenger-side","provider":"PartCatalog","version":"1.0","type":"link"}