• Includes threaded cap and adapter for newer GM “threaded style” radiator openings.
• The Spill-Free Funnel eliminates trapped air pockets which usually cause erratic cooling system and heater performance.
• It controls the proper amount of coolant entering system and enables unattended filling of the cooling system.
• The funnel eliminates squeaky belts caused by coolant overflow and protects the environment.
• Four adapters fit most domestic and import cars and light trucks.
• Angled neck allows use on radiator caps that are placed at an angle.
• Made in USA.

Includes: Funnel, 45º Elbow, Fluid Stopper, Large Cap A, Medium Cap B, Large Adapter A with Gasket, Medium Adapter B with Gasket, Small Cap C, Small Adapter C with Gasket, Threaded Cap D for GM, Threaded Adapter D with Gasket for GM.