Mityvac offers the most advanced cooling system test and refill equipment available. In addition to offering a professional pressure tester and AirEvac kit, Mityvac is the first to combine pressure, temperature, and vacuum testing and automatic refill into one kit. Only MV4525 is capable of performing all these tests and functions, replacing up to three different competitive kits. But even more important, it is the first tester designed for testing a vehicle with the engine on or off. Testing with the engine on provides real-time feedback of pressure, vacuum and temperature while the engine warms up through its normal operating cycle, providing the most accurate assessment on how the cooling system is functioning. Using this system, a technician can quickly and easily diagnose cooling system leaks, a blown head gasket, a cracked or damaged head or block, or a faulty thermostat, fan switch/relay, or coolant sensor.

To compliment our testers, Mityvac offers 29 custom designed adapters to fit the radiators, coolant bottles, and caps of virtually every make and model of US, Asian, and European manufactured car and light truck. All adapters are sold separately, and are also available in five cost saving kits listed below. For more adapter features, selection details, and vehicle make/model application guide, click on the link below:

MV4525 Cooling System Test & Refill Kit

The MV4525 is the most innovative, advanced automotive cooling system test kit ever designed. It is the first and only tester developed specifically to run complete cooling system diagnostics with the engine running and at normal operating temperature and pressure. New patent pending technology combines testing and monitoring of pressure, vacuum and temperature simultaneously, to provide real-time data far beyond the capabilities of a simple pressure tester. This combination of features ensures the most extensive, accurate cooling system diagnosis possible.

Aplications: Pressure and/or vacuum test for leaks in automotive cooling systems Rapidly refill cooling systems without trapping air Check proper function of thermostat, cooling sensor, and cooling fan(s) Diagnose blown head gasket(s), cracked block, and cylinder head damage Cooling system cap pressure testing (additional adapters required) Includes: Pressure Pump 2.5” (64 mm) diameter diaphragm style compound gauge w/ hanging hook Venturi Vacuum Valve Coupler Temperature Probe (2x) 30” (760 mm) Extension Hose 5’ (1.5 m) Refill Hose 5’ (1.5 m ) Drain Hose Cap Wrench Hose Clip MVA100 Cooling System Adapter (US and foreign cars) MVA101 Cooling System Adapter (Asian cars) MVA102 Cooling System Adapter (Asian cars) MVA103 Cooling System Adapter (US and foreign cars) Custom Molded Case User’s Manual (English, French, Spanish) Adapter Selection Guide (English, French, Spanish)

Patent pending coupler saves the expense of up to three separate kits by combining pressure, vacuum and temperature testing capabilities Tests cooling system with engine on or off to pinpoint leaks or diagnose blown head gaskets, cracked block, or damaged head(s). Refills cooling system in minutes without trapping air that can cause overheating Components connect using self-locking quick-disconnects for easy and time saving assembly and breakdown. Safety valves prevent discharge of pressure and/or hot fluid in case of accidental disconnect Built-in valve allows the rapid, safe release of pressure and fluid without waiting for the system to cool Includes four adapters for connecting to the most common radiator and coolant bottle necks found on Domestic, Asian, and European automobiles. Additional adapters available for all makes and models of cars and light trucks Packaged in custom molded case with space for additional adapters Molded adapter design provides a secure grip during installation or removal Specifications: Packaged Weight: 10.3 lbs (4.7 kg) Packaged Size: 20.6” (525 mm) x 18.3” (465 mm) x 4.3” (110 mm) Max. Pressure: 30 psi (200 kPa) Max. Temperature: 400°F (200° C) Vacuum: 15 in. Hg (51 kPa) @ 60 psi (4.1 bar) inlet pressure 24 in. Hg (81 kPa) @ 90 psi (6.2 bar) inlet pressure 25 in. Hg (81 kPa) @ 120 psi (8.3 bar) inlet pressure Air Inlet Size: ¼” NPT