Heavy Duty Cooling System Test and Adapter Kit

• Uses shop air to maintain constant system pressure• Lifetime warranty on adapters• CSTHD’s high quality, easy to use design eliminates potential leak issues with rubber plugs or bladders, reduces set up time and quickly pressurizes and maintains system pressure so you can find the leak the first time• Compatible with: Freightliner, International, Volvo, GMC, Kenworth, Peterfilt, Mack, Sterling