{"product_id":"zktool-aluminum-radiator-pressure-tester-hand-pump-with-3-gauge-0-35-psi-brass-fittings","title":"ZKTOOL Aluminum Radiator Pressure Tester Hand Pump with 3\" Gauge — 0–35 psi, Brass Fittings","description":"\u003cp\u003e\u003cstrong\u003eZKTOOL's aluminum hand pump with a 3-inch pressure gauge is a portable radiator pressure tester that lets you pressurize cooling systems to locate leaks and verify cap integrity.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWhen a cooling system loses coolant or overheats, a simple, reliable pressure check often identifies the culprit. This compact tester combines a sturdy aluminum hand pump, brass fittings and a clear 3\" dial (0–35 psi \/ 0–2.5 bar) to let mechanics and DIYers simulate system pressure, observe gauge movement and confirm whether hoses, fittings or the radiator cap are holding pressure. It works with widely available radiator adapters so you can adapt to different filler necks across many vehicle makes and models.\u003c\/p\u003e\n\n\u003ch3\u003eHow do I use this ZKTOOL tester to check a radiator?\u003c\/h3\u003e\n\n\u003cp\u003eSet the vehicle cold, attach the correct adapter to the filler neck, and connect the tester hose tightly. Pump slowly to the recommended test pressure for your vehicle (typically between 10–20 psi), then watch the gauge for pressure loss that would indicate a leak.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eSelect the radiator adapter that fits your filler neck and thread it in place securely.\u003c\/li\u003e\n  \u003cli\u003eAttach the tester hose, ensuring hose clamps or fittings are snug and sealed.\u003c\/li\u003e\n  \u003cli\u003ePump gradually, holding near the target pressure instead of going to the maximum 35 psi.\u003c\/li\u003e\n  \u003cli\u003eMonitor the gauge for steady pressure vs. a drop that signals leakage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat features make this pressure pump durable and accurate?\u003c\/h3\u003e\n\n\u003cp\u003eThe tool uses a machined aluminum pump body and brass connection points for corrosion resistance and long service life. A large 3-inch dial provides clearer readings than small gauges, and the braided rubber hose improves sealing and resists kinking during use.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eAluminum pump housing for strength and reduced weight.\u003c\/li\u003e\n  \u003cli\u003eBrass fittings that resist rust and maintain reliable seals.\u003c\/li\u003e\n  \u003cli\u003e60 mm rubber nylon braided hose for airtight connections and durability.\u003c\/li\u003e\n  \u003cli\u003e3\" dial calibrated 0–35 psi (0–2.5 bar) for easier, more precise readings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich vehicles and adapters are compatible with this tester?\u003c\/h3\u003e\n\n\u003cp\u003eThe pump is designed to work with most aftermarket radiator adapters and adapter kits, so it covers a broad range of passenger cars, light trucks and motorcycles when the correct adapter is used. It is not limited to a single fill-neck shape—simply choose the matching adapter to achieve a tight seal.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eCompatible with commonly sold radiator adapter sets on the market.\u003c\/li\u003e\n  \u003cli\u003eWorks for many car makes and model years when matched with proper adapter.\u003c\/li\u003e\n  \u003cli\u003eIdeal for both OEM-style and aftermarket filler necks when an adapter fits.\u003c\/li\u003e\n  \u003cli\u003eNot restricted to one cap size—adapters enable wider vehicle coverage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre there safety tips and best practices for testing cooling systems?\u003c\/h3\u003e\n\n\u003cp\u003eAlways perform pressure tests on a cold engine to avoid scalding from hot coolant or steam. Avoid exceeding recommended test pressure—most systems only require 10–20 psi for diagnostics—and inspect hoses and clamps visually while the system holds pressure to pinpoint leaks.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eTest the system when the engine is cold to prevent burns and false pressure readings.\u003c\/li\u003e\n  \u003cli\u003eDo not exceed 20 psi for routine checks; the gauge range goes to 35 psi for flexibility.\u003c\/li\u003e\n  \u003cli\u003eObserve external hoses, clamps, heater core lines and the radiator cap for escaping fluid or bubbles.\u003c\/li\u003e\n  \u003cli\u003eRelease pressure slowly and safely after the test, following vehicle manufacturer guidance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this tool for? Mechanics, fleet technicians and home enthusiasts who perform regular cooling-system troubleshooting will find the ZKTOOL aluminum pressure pump useful for quick diagnostics. It’s suited to anyone who needs a portable, resilient test pump that pairs with common radiator adapters to confirm leaks, test cap function and verify hose integrity without relying on a full shop rig. Keep this tester in a professional toolbox or a home garage for fast, repeatable checks before deeper repairs.\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 pump test all radiator caps?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It works with most radiator caps when you use the correct aftermarket adapter; verify adapter fit before testing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What pressure should I use for a standard leak test?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Use a conservative 10–20 psi for general checks; avoid pumping to the 35 psi maximum.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"ZKTOOL","offers":[{"title":"Default Title","offer_id":48086101852318,"sku":"B09YKS3SFZ","price":45.35,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/zktool-front-view-pump-gauge.jpg?v=1785884760","url":"https:\/\/northtrailauto.ca\/products\/zktool-aluminum-radiator-pressure-tester-hand-pump-with-3-gauge-0-35-psi-brass-fittings","provider":"North Trail Auto","version":"1.0","type":"link"}