Mastercool 43014 Vacuum-Type Cooling System Filler Kit

The Mastercool 43014 Heavy-Duty Cooling System Vacuum Refill Kit provides an efficient way to refill automotive cooling systems while reducing the need for manual air bleeding. Using shop air and a Venturi-style vacuum generator, the kit creates a vacuum within the cooling system before drawing in new coolant, helping minimize trapped air and the risk of engine overheating. The universal conical adapter accommodates a variety of radiator filler necks and expansion tanks, making the kit suitable for both passenger and heavy-duty vehicles. A built-in vacuum gauge monitors vacuum levels, while the coolant valve provides control during the refill process. The kit includes the necessary adapters, valves and hoses for vacuum-assisted coolant refilling.

• Refills Cooling Systems Using Shop Air to Create a Vacuum and Draw in New Coolant
• Reduces the Need for Manual Air Bleeding After Refilling
• Designed for Passenger and Heavy-Duty Vehicles
• Universal Conical Adapter Fits a Variety of Radiator Filler Necks and Expansion Tanks
• Venturi-Style Vacuum Generator Connects to an Air Compressor to Create Vacuum
• 0–30 inHg Vacuum Gauge for Monitoring System Vacuum
• Fill Rate: 2.3 Gallons per Minute at Full Vacuum (26 inHg)
• 51" Coolant Hose with Connector and Coolant Control Valve
• Drain Hose for Removing Residual Fluid from the Radiator and Tool
• Includes: Vacuum Gauge, Shop Air Connector, Air Valve, Venturi-Style Vacuum Generator, Conical Adapter, Coolant Hose, Coolant Valve and Drain Hose