Tank Filler Necks

Circle Track Race Car Fuel Cell Tank Filler Necks at JJ Motorsports

Fill your circle track race car's fuel cell quickly and safely with premium tank filler necks from JJ Motorsports, featuring recessed, straight, and bolt-on designs for secure, leak-free operation in high-speed racing conditions. These high-quality filler necks from RJS, RCI, and JAZ are essential for fast pit stops and compliant setups in dirt late model, modified, and asphalt racing, delivering durable construction and easy integration with your fuel cell can and bladder for reliable performance on the track.

Shop top brands like RJS Racing Equipment, RCI, and JAZ Products for race-proven reliability. Whether you're building a new system or upgrading for faster fills, these filler necks pair perfectly with our tank caps or explore fuel cell components to complete your setup and race with total confidence across all conditions, from short ovals to high-bank superspeedways.

Top Circle Track Fuel Cell Tank Filler Necks

• Filler Assembly Recessed 2-1/4in RJS302117 – Recessed 2.25" filler with check valve; ideal for quick-fill late model setups.
• Fuel Fill Neck 1-3/4in Straight RCI7036A – Straight 1.75" neck; durable for modified and street stock cells.
• 12-Bolt Fill Valve w/ Check Valve Flapper JAZ391-251-03 – 12-bolt valve with flapper; prevents backflow for fast, clean fills.

Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!