The Mastercool Heavy Duty Cooling System Pressure Test and Refill Kit, No. 43306, is designed to remove the complications resulting from unreliable rubber plugs or bladders. This kit can help save set-up time and provide precise results. The kit uses shop air to uphold continual pressure to the cooling system during testing and refill. Four quick disconnect vacuum attachments provide quick refilling of the cooling system and eradicate airlocks. This kit is designed for use with Freightliner, International, Kenworth, Peterbilt, Mack, Volvo, GMC and Sterling cooling system. The kit includes heavy duty vehicle adapters, a pressure test regulator, vacuum refill attachment with tubing and a plastic case.
