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!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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ATL Fuel Cells Recessed Fender Filler RF108
ATL FUEL CELLS
$150.99A recessed filler assembly keeps your fuel cap secure and flush with your fender during high-speed competition or aggressive driving. The twist-lock design prevents accidental opening under vibration and cornering loads, while the recessed mount...ATLRF108- SKU:
- ATLRF108
- Availability:
- Ships Same Business Day
- Weight:
- 1.14 LBS
$150.99 -
RJS Filler Assembly Recessed 2-1/4in 302117
RJS SAFETY
$93.30A quality fuel filler assembly is essential for any race car or high-performance build where reliability and safety are non-negotiable. The RJS Filler Assembly Recessed eliminates fuel sloshing, vapor leaks, and unpredictable cap failures during high-G...RJS302117- SKU:
- RJS302117
- Availability:
- Ships Same Business Day
- Weight:
- 1.31 LBS
$93.30 -
JAZ 2-1/2in Fast Fill Valve 12-Bolt 345-250-03
JAZ
$156.99Pit stops demand speed, and your fuel cell setup should match that intensity. The JAZ 2-1/2in Fast Fill Valve eliminates fumbling with standard filler necks, allowing your crew to top off the tank in seconds without spillage or alignment issues. Built...JAZ345-250-03- SKU:
- JAZ345-250-03
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
$156.99 -
ATL Fuel Cells Filler Straight 2-1/4in Od w/ Paddle Valve TF603-742
ATL FUEL CELLS
$224.99A quality fuel cell filler neck is critical for safe, reliable fueling in high-performance and racing applications. This ATL unit combines robust aluminum construction with a rollover valve for added safety, ensuring your fuel system stays secure whether...ATLTF603-742- SKU:
- ATLTF603-742
- Availability:
- Ships Same Business Day
- Weight:
- 7.00 LBS
$224.99Qty in Cart: 0Quantity:Price:$224.99Subtotal: -
Fuel Fill Neck 1-3/4in Angled 7036B
RCI
$50.99A properly engineered fuel fill neck is critical for any custom fuel cell setup—it ensures reliable fueling without leaks while maintaining the structural integrity of your tank assembly. The 45-degree angle on this neck provides practical clearance for...RCI7036B- SKU:
- RCI7036B
- Availability:
- Ships Same Business Day
- Weight:
- 2.80 LBS
- MFG Part #:
- 7036B
$50.99 -
Fuel Fill Neck 1-3/4in Straight 7036A
RCI
$46.99A properly engineered fuel fill neck is critical for safe, reliable refueling in high-performance and custom fuel cell setups. The 7036A delivers a straightforward, bolt-on solution with a robust 12-bolt flange that ensures a secure, leak-free connection...RCI7036A- SKU:
- RCI7036A
- Availability:
- Ships Same Business Day
- Weight:
- 2.05 LBS
- MFG Part #:
- 7036A
$46.99 -
Fill Plate 10an Pickup / 8an Return / 8an Vent 7032B
RCI
$119.99A fuel cell requires a properly engineered filler plate to ensure reliable fuel delivery and safe venting during high-performance operation. This 7032B fill plate integrates pickup, return, and vent functions into a single bolt-on component, eliminating...RCI7032B- SKU:
- RCI7032B
- Availability:
- Ships Same Business Day
- Weight:
- 3.70 LBS
- MFG Part #:
- 7032B
$119.99 -
Fill Plate 8an Pickup / 8an Vent 7032A
RCI
$119.99A properly sealed fuel cell requires a dependable filler plate that handles both fuel delivery and vapor management without compromise. This 8 AN pickup and vent plate delivers the flow capacity your high-performance fuel system demands while maintaining...RCI7032A- SKU:
- RCI7032A
- Availability:
- Ships Same Business Day
- Weight:
- 3.65 LBS
- MFG Part #:
- 7032A
$119.99Qty in Cart: 0Quantity:Price:$119.99Subtotal: -
JAZ 12-Bolt Fill Valve w/Check Valve Flapper 391-251-03
JAZ
$126.99A quality fuel cell fill valve is non-negotiable for any serious racing operation—this JAZ assembly delivers reliable, leak-free fueling with a robust check valve flapper that prevents siphoning and backflow. The 12-bolt flange design ensures secure...JAZ391-251-03- SKU:
- JAZ391-251-03
- Availability:
- Ships Same Business Day
- Weight:
- 2.51 LBS
- MFG Part #:
- 391-251-03
$126.99 -
JAZ Recessed Fender Filler w/Cap 350-250-03
JAZ
$116.99A recessed fuel filler eliminates the exposed cap and creates a cleaner, more integrated look in your fender while maintaining full functionality. This JAZ assembly features a flush-mount design that reduces aerodynamic drag and provides a professional...JAZ350-250-03- SKU:
- JAZ350-250-03
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- MFG Part #:
- 350-250-03
$116.99 -
JAZ 2-1/4in Fast Fill Valve 12-Bolt 345-225-03
JAZ
$156.99If you're running a fuel cell in your race car, you need a filler neck that won't slow you down during pit stops. The JAZ 2-1/4in Fast Fill Valve delivers quick, reliable fueling with a secure 12-bolt flange mount that eliminates leaks and vibration...JAZ345-225-03- SKU:
- JAZ345-225-03
- Availability:
- Ships Same Business Day
- Weight:
- 1.97 LBS
- MFG Part #:
- 345-225-03
$156.99 -
JAZ Oval Filler Plate Kit 315-710-01
JAZ
$349.99A quality fuel cell filler plate kit is essential for any serious racing fuel system—it's the interface between your fuel cell and the rest of your plumbing, and poor design here leads to leaks, pressure inconsistencies, and wasted track time. The JAZ...JAZ315-710-01- SKU:
- JAZ315-710-01
- Availability:
- Ships Same Business Day
- Weight:
- 7.15 LBS
- MFG Part #:
- 315-710-01
$349.99 -
Fuel Safe 2.25in Recessed Fender Fill RFF225
FUEL SAFE
$284.99A recessed fender fill eliminates the safety hazard of a protruding fuel cap that can snag on equipment, pit crew, or track infrastructure. Fuel Safe's RFF225 delivers a clean, flush-mount solution that integrates seamlessly into your fuel system while...FUERFF225- SKU:
- FUERFF225
- Availability:
- Ships Same Business Day
- Weight:
- 1.13 LBS
- MFG Part #:
- RFF225
$284.99Qty in Cart: 0Quantity:Price:$284.99Subtotal: -
Fuel Safe Muli Loc. Plate W/Fittin ML6X10A
FUEL SAFE
$274.99A quality fuel cell filler plate is essential for safe, reliable fuel system integration in high-performance applications. This Fuel Safe Multi Loc. Plate provides a standardized, aluminum mounting solution that accepts both common fill tube...FUEML6X10A- SKU:
- FUEML6X10A
- Availability:
- Ships Same Business Day
- Weight:
- 1.79 LBS
- MFG Part #:
- ML6X10A
$274.99Qty in Cart: 0Quantity:Price:$274.99Subtotal: -
Pyrotect Remote Filler 2-1/4in 45 Degree RV010F
PYROTECT
$104.00A reliable fuel cell filler neck is essential for safe, efficient fueling in high-performance racing applications. The Pyrotect Remote Filler delivers the precision engineering and robust construction necessary for demanding track conditions, while its...PYRRV010F- SKU:
- PYRRV010F
- Availability:
- Ships Same Business Day
- Weight:
- 0.57 LBS
- MFG Part #:
- RV010F
$104.00Qty in Cart: 0Quantity:Price:$104.00Subtotal:
