MV4534 Cooling System Pressure Tester


Mityvac’s MV4534 is a professional-grade, automotive cooling system test kit. It quickly pinpoints external leaks, the most common cause of engine overheating, and aids in diagnosing internal leaks caused by a blown head gasket or cracked block or head. The kit combines a high-quality pressure pump with Mityvac’s universal cooling system adapter for quick, efficient and accurate testing, without the need for costly applicationspecific adapters. The pump features a large-capacity stroke to quickly reach peak pressure and includes a 2½ in. diameter gauge with easy-to-read, color-coded test level indicators.


Pressure testing for leaks in automotive cooling systems


  • High-volume hand-operated pump builds pressure quickly to locate leaks
  • Universal cooling system adapter replaces more than 20 individual adapters for cars, vans, light- and heavy-duty trucks
  • Patent-pending adapter cam mechanism helps to ensure an air-tight seal with radiator and coolant bottle necks
  • Compact one-piece adapter design fits conveniently in tool box
  • Large, easy-to-read 2½ in. (63.5 mm) diameter gauge includes clearly indicated pressure test zones
  • Convenient push-button valve safely relieves pressure when testing is complete
  • Packaged in durable custom-molded case


  • Hand pressure pump with 2½ in. (63.5 mm) diameter gauge and push-button pressure release valve
  • Universal radiator test adapter
  • Custom molded case
  • User manual (English, Spanish, French)


Packaged weight5.0 lbs. (2.3 kg)
Packaged size15.1 x 3.5 x 11.8 in. (385 x 90 x 300 mm

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