Lisle Spill-Free Coolant Funnel Kit, 18-Piece with Clear Funnel, Adapters & Elbows for Radiator Filling

The Lisle 24780 Spill-Free Funnel is a complete 18-piece coolant filling kit that lets you add antifreeze without spills, air pockets, or constant supervision.

Designed for shops and home mechanics, this kit combines a clear, spill-free funnel with multiple adapters, caps and angled extensions so you can quickly, cleanly, and safely top off cooling systems on most domestic and import cars, light trucks and tractors. The clear funnel body gives an immediate visual of fluid flow, colored adapters speed identification, and the included lid protects components from dirt when stored.

How does this funnel prevent air pockets and erratic cooling performance?

The funnel maintains a controlled flow of coolant and creates a sealed fill point that helps purge trapped air during filling. Because the system fills steadily and can be left unattended, the likelihood of pockets that cause heater or cooling irregularities is reduced.

• Sealed connection minimizes air intake while filling.
• Controlled flow prevents splashing and overflow.
• Clear funnel lets you watch for air bubbles to confirm a complete fill.

Which vehicles and openings will the 18-piece kit fit?

The kit ships with five colored radiator adapters, six caps and multiple extensions to match many OEM necks and overflow reservoirs. New caps are included for Ford, GM and some VW/Audi/Porsche overflow styles with threaded openings, expanding compatibility with modern vehicles.

• Five colored adapters for quick matching to filler necks.
• Six caps, including updated Ford and GM/VW-compatible pieces.
• Straight and 45° elbow extensions for angled or recessed necks.

What conveniences and shop benefits does the funnel add?

This funnel saves time and reduces mess: you can start a fill and walk away, avoid coolant spills that damage belts and finishes, and lower fluid waste. The clear material and color-coded parts let technicians identify correct fittings at a glance, speeding workflow.

• Unattended filling capability frees up tech time.
• Lid stores caps/adapters and keeps contaminants out between jobs.
• Clear funnel helps a quick visual check across the shop floor.

How do the extensions and elbows help in tight or angled locations?

Straight extensions lengthen reach into deep filler necks, while the included 45° elbows let you approach angled openings without forcing awkward hose bends. That combination ensures you can adapt the funnel to cramped engine bays and unusual filler placements.

• Straight tubes for deep or recessed radiator caps.
• Two 45° elbows for angled or obstructed openings.
• Interchangeable parts allow custom assembly per vehicle.

Who is this for: the Lisle 24780 is made for professional technicians, fleet maintenance teams, and DIY enthusiasts who top off cooling systems regularly and want a cleaner, faster, and more reliable way to add coolant. If you need a universal, visual, and spill-resistant filling solution that fits a wide range of cars, trucks and utility equipment, this kit is built to simplify the job while protecting components and the work area.