Orion Motor Tech Coolant Pressure Tester & Vacuum Refill Kit — 34‑Piece Leak Diagnosis

An all-in-one 34-piece coolant pressure tester and vacuum refill kit for locating leaks and performing air-free coolant changes on most passenger vehicles.

Orion Motor Tech's OMT Master Coolant Pressure Tester Kit combines a full set of adapters, a hand vacuum pump, and refill tools in one molded case so you can diagnose leaks and refill cooling systems without trapped air. The kit pairs pressure testing components with a vacuum refill system to help you find failing radiators, hoses, heater cores, water pumps, and head gasket leaks, then restore coolant with a precise, contamination-minimizing process. Durable materials and clear markings keep the kit practical for DIY mechanics and professional techs alike.

How will this kit help me find hidden coolant leaks?

The kit lets you pressurize the cooling system and hold pressure to reveal where fluid or pressure drops occur, pinpointing leaks in radiators, tanks, hoses, or components. Use the included adapters to seal different filler necks and watch pressure gauges or bubbles to identify leak locations quickly.

• 22 radiator-specific adapters plus 1 universal adapter for broad vehicle coverage
• Vacuum pump and pressure fittings to simulate system pressure safely
• Hose clamps, O-rings, and secure fittings to create airtight seals

Can this kit refill coolant without trapping air in the system?

Yes — the vacuum refill tool draws coolant into the closed system under negative pressure so fluid replaces air pockets exactly where they form, reducing hot spots and improving fill quality. The process is cleaner and faster than spill-prone gravity fills.

• Purge & refill tool designed for vacuum-assisted bleeding
• Clear hoses and probe thermometer to monitor flow and temperature
• US & EU air joints included for compatibility with various radiators

Which makes and models will these adapters fit?

The assortment of 23 adapters covers a wide range of domestic and imported vehicles, including common brands from compact cars to SUVs. Color-coded pieces and size markings make selecting the correct adapter fast, and the universal adapter covers uncommon necks.

• Fits Mercedes-Benz, GM, Toyota, Honda, Subaru, Lexus, Volvo, Saab, and more
• Color-coded and stamped sizes for quick identification
• Universal adapter included for odd or uncommon filler necks

What materials and durability features should I expect?

The OMT Master kit uses a mix of aluminum alloy, brass, nylon, and rubber to balance strength and part compatibility under shop conditions. Components resist wear from repeated use and store securely in the molded case to prevent lost pieces.

• Aluminum alloy and brass fittings for strength and corrosion resistance
• Nylon and rubber seals for secure, repeatable connections
• Molded carrying case with labeled slots to protect and organize parts

Who this is for: This Orion Motor Tech kit is ideal for home mechanics, fleet maintenance crews, and independent shops that work on varied vehicle makes and want one compact solution for coolant leak detection and air-free refills. If you service multiple brands or want a reliable toolset for seasonal coolant changes and pressure testing, this kit provides adapters, pump tools, and durable components to get the job done without repeatedly sourcing specialty parts.