{"product_id":"dayuan-radiator-pressure-tester-kit-28pc-universal-0-35-psi-with-vacuum-purge-cap-adapters","title":"DAYUAN Radiator Pressure Tester Kit 28pc — Universal 0–35 PSI with Vacuum Purge \u0026 Cap Adapters","description":"\u003cp\u003e\u003cstrong\u003eDAYUAN's 28-piece universal radiator pressure tester kit combines pressure and vacuum testing plus coolant purge\/refill tools to locate leaks and service most passenger vehicle cooling systems.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis comprehensive kit contains adapters, a hand pump, radiator cap testers and vacuum purge tools to diagnose cooling system faults and replace coolant without spills. The set is engineered to fit a wide range of makes and models, with color-coded caps and a 0–35 psi test range for straightforward pressure checks. Everything is organized to save time when isolating leaks, testing caps, and performing a controlled coolant change.\u003c\/p\u003e\n\n\u003ch3\u003eHow do I use this kit to find a radiator leak?\u003c\/h3\u003e\n\n\u003cp\u003eAttach the correct adapter for your radiator or coolant reservoir, then use the hand pump to pressurize the system while watching the gauge for pressure loss. If pressure drops, inspect hoses, seams, and connections for visible coolant or bubbles; the kit allows safe, controlled pressurization without running the engine. This method identifies leaks at caps, hoses, radiator cores, and heater connections quickly.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eSelect the color-coded radiator cap adapter that matches your vehicle.\u003c\/li\u003e\n  \u003cli\u003eHook up the hand pressure pump and tighten with the included spanner.\u003c\/li\u003e\n  \u003cli\u003ePump to a safe pressure (under 35 psi) and observe gauge readings for drops.\u003c\/li\u003e\n  \u003cli\u003eVisually and tactilely inspect suspect areas while under pressure.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan this kit test radiator caps and cooling system seals?\u003c\/h3\u003e\n\n\u003cp\u003eYes — the kit includes dedicated radiator cap test adapters and a universal radiator adapter to verify cap sealing performance and system integrity. By pressurizing the system with the appropriate cap adapter installed, you can confirm whether a cap is holding pressure or allowing leakage that could cause overheating or coolant loss. This helps rule out cap failure before replacing other components.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eTwo radiator cap test adapters for common cap sizes and types.\u003c\/li\u003e\n  \u003cli\u003eUniversal adapter options for nonstandard necks and reservoirs.\u003c\/li\u003e\n  \u003cli\u003eHand pump and gauge for controlled, repeatable testing.\u003c\/li\u003e\n  \u003cli\u003eAdapter spanner to ensure leak-free connections during tests.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the vacuum purge and refill feature save time and mess?\u003c\/h3\u003e\n\n\u003cp\u003eThe vacuum purge and refill tools let you remove old coolant and refill the system without airlocks or spills, speeding coolant changes and improving coolant circulation after service. Using vacuum to draw out fluid reduces the need to lift the vehicle or disconnect multiple hoses, and it minimizes exposure to hot coolant. The kit’s fittings adapt to many reservoir and radiator necks for a tidy service process.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eTwo vacuum purge and refill adapters for various neck sizes.\u003c\/li\u003e\n  \u003cli\u003eVacuum draws coolant out cleanly, reducing spills and mess.\u003c\/li\u003e\n  \u003cli\u003eRefill under vacuum to prevent air pockets and speed bleeding.\u003c\/li\u003e\n  \u003cli\u003eClear connections make it easy to see fluid flow during service.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat vehicles and applications are compatible with this set?\u003c\/h3\u003e\n\n\u003cp\u003eThe DAYUAN kit is built to work with a broad range of passenger cars and light trucks, including many European, Asian, and American brands. Included adapters and the 0–35 psi test range cover most factory radiator openings and cap pressures. While it supports common makes like Mercedes-Benz, BMW, Audi, Toyota and Ford, always confirm adapter fit for uncommon or specialty necks before use.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eCompatible with Mercedes-Benz, Audi, BMW, VW, Toyota, Ford and more.\u003c\/li\u003e\n  \u003cli\u003eIncludes 17 radiator adapters plus three chromed steel fittings for durability.\u003c\/li\u003e\n  \u003cli\u003eColor-coded caps simplify matching to your vehicle’s radiator neck.\u003c\/li\u003e\n  \u003cli\u003eUniversal parts and spanner enable use across many service tasks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This DAYUAN 28-piece kit is aimed at DIY mechanics, home enthusiasts, and independent technicians who need a single, portable solution to diagnose cooling system leaks and perform coolant changes without a shop. It suits anyone who wants to troubleshoot radiator caps, hoses, and seals quickly, perform controlled coolant purges and refills, and reduce downtime during routine maintenance or repair work.\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: What pressure range does the DAYUAN tester cover?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The hand pump and gauge test between 0 and 35 psi, fitting most passenger vehicle systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will this kit fit my car’s radiator cap?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It includes 17 adapters, color-coded caps and universal fittings—most common caps are supported, but verify fit for atypical necks.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"DAYUAN","offers":[{"title":"Default Title","offer_id":48084025507998,"sku":"B078RJT13X","price":94.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/dayuan-front-packaging-kit.jpg?v=1785843939","url":"https:\/\/northtrailauto.ca\/products\/dayuan-radiator-pressure-tester-kit-28pc-universal-0-35-psi-with-vacuum-purge-cap-adapters","provider":"North Trail Auto","version":"1.0","type":"link"}