OE part number--- YT-98024 Reduces The Refill Time of Cooling Systems & Prevents The Air Flow Into The System; No More Bleeding & Saves Clean Up Time; Easy to Connect With Air Pump & Creates a Vacuum to The Filler Hose; Opening The Valve & Letting The Pre-Mixed Coolant Flow Into The System; Quick Coupler Attachments; 2" Gauge Read In Both cmHG And inHG; 0 - 76 Cm/HG Vacuum Gauge; Coolant Clear Hose (clamp not included); 3 Adapters (black); Include Case (Color Case May Varies); Uses Shop Air to Evacuate and Leak Test an Auto&s Cooling System.