Have you ever Had issue with hot spotting on the barrels of your engine in your Race car or Project, have you ever had issue with bleeding the air out of a late model cooling system or a system with pour bleed points, well this is the answer... The Radiator Coolant Vacuum Refill Kit will help you back fill the radiator under vacuum. The Rubber knob seals the unit into the radiator neck or reservoir. This radiator vacuum tool from eliminates air from the cooling system by first drawing a vacuum on the system, and then using that vacuum to pull coolant into the replace the air. This is similar to vacuum charging an AC system this is a must for a lot of vehicles including Trucks like ours with the Radiator in the back and the engine in the front.
Radiator Coolant Vacuum Refill Kit