{"product_id":"dayuan-vacuum-purge-radiator-coolant-refill-kit-aluminum-manifold-dual-scale-gauge-32-35-40-45mm-adapters","title":"DAYUAN Vacuum Purge Radiator Coolant Refill Kit — Aluminum Manifold \u0026 Dual-Scale Gauge, 32\/35\/40\/45mm Adapters","description":"\u003cstrong\u003eDAYUAN's Vacuum Purge Radiator Coolant Refill Tool Kit creates a vacuum in the cooling system so coolant flows in cleanly without air pockets, speeding refill and reducing mess.\u003c\/strong\u003e\n\n\u003cp\u003eRefilling a vehicle's cooling system can be slow and messy when air pockets form or when coolant spills during topping up. The DAYUAN vacuum purge kit uses shop air to evacuate the system, then draws pre-mixed coolant in under vacuum so fluids fill from the lowest point without trapping air. The kit includes a durable aluminum manifold, a dual-scale gauge, multiple radiator adapters, transparent hoses, and a protective case—everything needed to vacuum-test and refill most passenger and light-duty vehicle cooling systems.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the tool speed up cooling system refills?\u003c\/h3\u003e\n\u003cp\u003eThe kit creates negative pressure inside the cooling system using shop air to pull coolant in quickly and evenly. With the system under vacuum, you open the valve and the pre-mixed coolant flows in until the system equalizes—usually cutting refill time to about 5–10 minutes depending on system size.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePneumatic vacuum uses shop air to evacuate air from the system.\u003c\/li\u003e\n  \u003cli\u003eVacuum gauge (-76 to 0 cmHg \/ -30 to 0 inHg) shows when to add coolant.\u003c\/li\u003e\n  \u003cli\u003eTransparent 60\" coolant hose and 23\" splash-proof bleeder let you monitor flow.\u003c\/li\u003e\n  \u003cli\u003eTypical refill completes in 5–10 minutes for most passenger vehicles.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this kit fit my radiator opening and most vehicles?\u003c\/h3\u003e\n\u003cp\u003eDAYUAN supplies a 32 mm O.D. rubber adapter plus three sleeve sizes (35 mm, 40 mm, 45 mm) so the tool seals common filler necks. Confirm your radiator opening diameter before use; the sleeves slide over the base adapter to match the cap size and form a tight seal for vacuum purging.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIncludes base adapter (32 mm O.D.) and sleeves for 35\/40\/45 mm openings.\u003c\/li\u003e\n  \u003cli\u003eReplaces the radiator cap to maintain a sealed vacuum during filling.\u003c\/li\u003e\n  \u003cli\u003eNot compatible with nonstandard or proprietary filler neck sizes—measure first.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the key components and how durable are they?\u003c\/h3\u003e\n\u003cp\u003eThe refill tool features a premium aluminum manifold body with brass fittings for corrosion resistance, plus a 2\" dual-scale gauge that reads in both cmHg and inHg. Hoses are transparent for visual control, and quick coupler fittings let you hook into shop air and coolant lines fast.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAluminum manifold and brass fittings resist corrosion and wear.\u003c\/li\u003e\n  \u003cli\u003e2\" gauge indexed -76 to 0 cmHg (-30 to 0 inHg) for precise vacuum reading.\u003c\/li\u003e\n  \u003cli\u003eQuick coupler attachments and choice of European\/American air plugs included.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I use the kit safely and avoid common mistakes?\u003c\/h3\u003e\n\u003cp\u003eAlways verify coolant type, system temperature, and radiator opening before starting. Use shop air to draw a vacuum until the gauge reaches an appropriate reading (typically -25 to -20 inHg), then open the valve to allow coolant in; monitor flow and top off per manufacturer specs once vacuum equalizes.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCheck coolant compatibility and vehicle service recommendations first.\u003c\/li\u003e\n  \u003cli\u003eDo not attempt on hot engines—allow cooling system to reach safe service temperature.\u003c\/li\u003e\n  \u003cli\u003eWatch the transparent hoses to confirm coolant flow and avoid overfilling.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The DAYUAN vacuum purge radiator refill kit is made for professional technicians, DIY mechanics, and fleet service shops that want faster, cleaner coolant changes and reliable vacuum leak testing. It suits most passenger cars and light trucks with standard filler neck sizes (32–45 mm when adapters are used), and is ideal when you need to reduce air entrapment, save cleanup time, and speed routine cooling system maintenance.\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 the kit test for leaks as well as refill coolant?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. Using shop air the kit evacuates the system so you can vacuum-test for leaks before adding coolant.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Which radiator cap sizes does the DAYUAN kit support?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It includes a 32 mm base adapter plus 35 mm, 40 mm, and 45 mm sleeves to fit most common openings.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"DAYUAN","offers":[{"title":"Default Title","offer_id":48085646573726,"sku":"B09KLJHF98","price":44.29,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/dayuan-front-view-tool-kit.jpg?v=1785876373","url":"https:\/\/northtrailauto.ca\/products\/dayuan-vacuum-purge-radiator-coolant-refill-kit-aluminum-manifold-dual-scale-gauge-32-35-40-45mm-adapters","provider":"North Trail Auto","version":"1.0","type":"link"}