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Lisle Spill-Free Coolant Funnels

4.87 out of 5 stars 76 Customer Reviews

Lisle spill-free coolant funnel kits include a threaded cap and adapter for newer GM threaded-type radiator openings. They eliminate trapped air pockets, which usually cause erratic cooling and heating performance. The funnels control the proper amount of coolant entering the system—and enable the unattended filling of the cooling system. Lisle spill-free coolant funnels are available in different models, for universal or application-specific use. Flushing and refilling your radiator doesn't have to be a messy, time-consuming task, thanks to Lisle.

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