Radiator pressure tester (18 pcs)


Radiator pressure tester (18 pcs)

  • Tests leaks in radiator and heater by connecting the pressure tester pump to the radiator through a test cap or adapter.
  • Contains 13 test caps and adapters (No. 3 – 15) for use on modern domestic and imported cars and light trucks.
  • Two connector tubes (black & blue) to test the functionality of the original radiator caps.
  • A thermometer is provided for measuring coolant temperature before testing.
  • Stock Ref. No. 9CL-7101721
  • Dimensions
  • Instructions
  • Downloads
  • Video
Packing BMC
Packaging 4 sets/carton
N.W 3.4 kg/set
13.6 kg/carton
G.W. 15 kg/carton
Size 47.7 x 40.6 x 10.8 cm/set
Size 48.5 x 44 x 41.5 cm/carton


  1. Choose a suitable adapter and screw it onto the radiator filler neck.
  2. Connect the pressure tester to the adapter.
  3. Pump pressure to the range between 10 and 15 psi.
  4. Check if the gauge reading moves. If it does, there could be leaks in the cooling system.

Attention: Do not pump the pressure up to 35 psi.


  1. Connect the original radiator cap to one side of the connector, and a pressure test cap on the other side.
  2. Pump pressure to specified pressure on the cap.
  3. When pumping pressure under the specified pressure, check if gauge reading drops. If it does, there could be leaks in the radiator cap.
  4. When pumping pressure above the specified pressure, check if the radiator cap has the ability to release pressure. If it does not, the cap should be replaced.