{"product_id":"dayuan-cooling-system-vacuum-purge-radiator-coolant-refill-tool-kit-4-adapter-set-with-dual-scale-gauge","title":"DAYUAN Cooling System Vacuum Purge Radiator Coolant Refill Tool Kit — 4-Adapter Set with Dual-Scale Gauge","description":"\u003cstrong\u003eDAYUAN Cooling System Vacuum Purge Radiator Coolant Refill Tool Kit is a pneumatic vacuum filler that evacuates air from a vehicle cooling system and draws in premixed coolant quickly and cleanly.\u003c\/strong\u003e\n\n\u003cp\u003eThis compact kit uses shop air to create a vacuum in the cooling system, eliminating the need for manual bleeding and reducing the chance of trapped air pockets. Built around an aluminum manifold, brass fittings and a dual-scale vacuum gauge, the tool connects to the radiator neck with one of four adapter sizes and pulls coolant into the system through a clear hose for visual monitoring. It shortens refill time, simplifies cleanup, and is designed to work across most passenger vehicles.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the vacuum purge process speed up coolant refills?\u003c\/h3\u003e\n\u003cp\u003eThe tool first seals the radiator opening with a chosen adapter, then uses shop air and the manifold’s fittings to pull a vacuum through the filler hose. Once the target vacuum is reached, opening the valve lets premixed coolant flow into the depressurized cooling system, filling without large air pockets.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePneumatic vacuum pulls air out before adding coolant to prevent trapped pockets.\u003c\/li\u003e\n  \u003cli\u003e0–76 cmHg (0–30 inHg) gauge shows vacuum level for precise timing.\u003c\/li\u003e\n  \u003cli\u003eVacuum fill typically completes in 5–10 minutes depending on coolant volume.\u003c\/li\u003e\n  \u003cli\u003eClear coolant hose allows visible flow and leak detection while filling.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat vehicle openings and hookups does this kit support?\u003c\/h3\u003e\n\u003cp\u003eThe refill kit includes a fixed O.D. 32 mm rubber adapter and three interchangeable adapter sleeves sized 35 mm, 40 mm and 45 mm to fit most radiator necks and coolant reservoirs. It also supplies two accessory air plugs—European and American styles—and quick couplers to connect to a standard shop air source for vacuum generation and leak testing.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAdapters: 32 mm base plus sleeves for 35, 40, 45 mm openings.\u003c\/li\u003e\n  \u003cli\u003eAir compatibility: European and American-style air plugs included.\u003c\/li\u003e\n  \u003cli\u003eQuick couplers ease connection to shop compressors for vacuum operation.\u003c\/li\u003e\n  \u003cli\u003eBrass fittings and aluminum manifold resist corrosion for workshop durability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I read and use the vacuum gauge safely during refill?\u003c\/h3\u003e\n\u003cp\u003eThe dual-scale gauge reads in cmHg and inHg and indicates the vacuum pulled inside the cooling system. Typical filling is recommended when the gauge registers around -25 to -20 inHg (approximately -63 to -51 cmHg), but users should consult vehicle service guidance for exact specifications.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eGauge range: 0 to -76 cmHg (0 to -30 inHg) for clear monitoring.\u003c\/li\u003e\n  \u003cli\u003eRecommended fill zone: usually near -25 to -20 inHg for many systems.\u003c\/li\u003e\n  \u003cli\u003eTransparent hoses let you confirm coolant movement as valve opens.\u003c\/li\u003e\n  \u003cli\u003eCase protects the gauge and components between uses to prevent damage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat accessories are included and how do they improve workflow?\u003c\/h3\u003e\n\u003cp\u003eThe kit ships in a molded case and contains a 60\" coolant filling hose, a 23\" splash-proof bleeder hose, brass fittings, adapter sleeves, two air plugs, quick couplers, and the aluminum manifold with attached gauge. These components are selected to minimize tool changes and reduce cleanup time during routine service.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e60\" clear coolant hose for unobstructed flow monitoring and reach.\u003c\/li\u003e\n  \u003cli\u003e23\" splash-proof bleeder hose for controlled venting without spills.\u003c\/li\u003e\n  \u003cli\u003eMolded storage case protects the gauge and organizes parts for quick use.\u003c\/li\u003e\n  \u003cli\u003eDurable materials (aluminum body, brass fittings) extend tool life in workshops.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The DAYUAN Vacuum Purge Radiator Coolant Refill Kit is built for professional mechanics, home DIYers who perform routine cooling system service, and fleet technicians who want faster, cleaner coolant changes. It’s especially helpful where repeatable, air-free fills and leak testing are important to avoid overheating risks caused by trapped air and to save time on every service interval.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can this kit fit my radiator opening?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It includes a 32 mm base plus 35, 40 and 45 mm adapter sleeves; check your radiator neck diameter before use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do I need a shop air compressor?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The unit uses shop air through quick couplers to create the vacuum needed for filling and leak testing.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"DAYUAN","offers":[{"title":"Default Title","offer_id":67590451724473,"sku":"B09KLJHF98","price":84.23,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/dayuan-front-view-tool-kit.jpg?v=1790534687","url":"https:\/\/redleafauto.ca\/products\/dayuan-cooling-system-vacuum-purge-radiator-coolant-refill-tool-kit-4-adapter-set-with-dual-scale-gauge","provider":"Redleaf Auto","version":"1.0","type":"link"}