Tank Caps
Circle Track Race Car Fuel Cell Tank Caps at JJ Motorsports
Seal your circle track race car's fuel cell with premium tank caps from JJ Motorsports, featuring vented D-ring, 12-bolt, and non-vented designs for quick-fill capability and secure containment in high-speed racing conditions. These high-quality caps from RJS, Allstar, and Fuel Safe are FIA-FT3 approved and essential for dirt late model, modified, and asphalt classes, delivering leak-free performance and easy installation for dirt track, oval, and stock car setups.
Shop top brands like Allstar Performance and RJS Racing Equipment for race-proven reliability. Whether you're running a 22-gallon for modifieds or a 30-gallon for late models, these caps pair perfectly with our fuel cell cans or explore fuel cell components to finish your setup and race with total confidence across all conditions, from short ovals to high-bank superspeedways.
Top Circle Track Fuel Cell Tank Caps
- Fuel Cell Cap and Bung RCI/JAZ 12-Bolt Red ALL40133 – 12-bolt red quick-fill cap with bung; ideal for fast pit stops in late model racing.
- D-Ring Fuel Cell Cap Only Vented RJS30164 – Vented D-ring cap; lightweight and secure for modified and street stock cells.
- 2.25in Non-Vented Filler Cap FUEFC225 – 2.25" non-vented filler cap; compact for tight chassis and E85 applications.
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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Allstar Performance Fuel Cell Cap and Bung RCI/JAZ 12-Bolt Black ALL40136
ALLSTAR PERFORMANCE
$109.99A secure fuel cell cap isn't just a convenience—it's a critical safety component that prevents fuel spillage, contamination, and vapor loss during high-performance driving. The Allstar Performance 12-Bolt Fuel Cell Cap delivers reliable sealing on JAZ...ALL40136- SKU:
- ALL40136
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
$109.99 -
Allstar Performance Fuel Cell Cap and Bung RCI/JAZ 12-bolt Red ALL40133
ALLSTAR PERFORMANCE
$110.99Keep your fuel cell sealed tight and looking sharp with the Allstar Performance Fuel Cell Cap and Bung in bold red anodized aluminum. Designed specifically for 12-bolt JAZ and RCI fuel cells, this kit delivers a secure, leak-free fit that serious racers...ALL40133- SKU:
- ALL40133
- Availability:
- Ships Same Business Day
- Weight:
- 1.49 LBS
- MFG Part #:
- ALL40133
$110.99 -
Joes Fuel Filler 5 Pocket Alum Black Anodized 13202-B
JOES RACING PRODUCTS
$149.95A fuel system demands precision and reliability—especially under high-performance conditions where vibration, heat, and pressure test every component. The Joe's Fuel Filler 5 Pocket delivers a clean, flush-mount solution that eliminates sloppy stock...JOE13202-B- SKU:
- JOE13202-B
- Availability:
- Ships Same Business Day
- Weight:
- 0.96 LBS
$149.95 -
Joes Fuel Filler Remote Star Black 13200-B
JOES RACING PRODUCTS
$149.95Remote fuel filler caps eliminate the need to open your hood at the track or during pit stops, saving precious seconds and keeping your engine bay cleaner. If you're running a custom fuel system or have limited hood access, this flush-mount remote...JOE13200-B- SKU:
- JOE13200-B
- Availability:
- Ships Same Business Day
- Weight:
- 1.03 LBS
$149.95 -
Holley Alm Fill Cap Kit w/Alm Weld Bung 241-228
HOLLEY
$57.59A quality fuel cell filler cap assembly is essential for any serious racing or performance fuel system—it prevents fuel sloshing, maintains system integrity under high G-forces, and eliminates contamination that can compromise engine performance. The...HLY241-228- SKU:
- HLY241-228
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
$57.59 -
Holley Alm Fuel Cell Cap & Bung w/12 Bolt Flange 241-227
HOLLEY
$178.95A quality fuel cell cap assembly is critical for maintaining system integrity under racing conditions—pressure spikes, vibration, and thermal cycling demand a cap that seals reliably and stays put. The Holley ALM 241-227 combines a secure 12-bolt flange...HLY241-227- SKU:
- HLY241-227
- Availability:
- Ships Same Business Day
- Weight:
- 1.57 LBS
$178.95 -
Allstar Performance Fuel Cell Cap and Bung JAZ 6-Bolt Black ALL40137
ALLSTAR PERFORMANCE
$95.99A quality fuel cell cap isn't just a closure—it's a safety-critical component that prevents fuel spillage, contamination, and vapor loss during high-performance driving. The Allstar Performance JAZ fuel cell cap delivers secure, reliable sealing with a...ALL40137- SKU:
- ALL40137
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
$95.99 -
RJS Fuel Cell Cap & Gasket Black 30181
RJS SAFETY
$38.69A proper fuel cell cap is essential for maintaining system integrity during high-performance driving. This RJS cap delivers a secure, leak-free seal while the vented design accommodates fuel expansion in closed-loop racing systems. The included gasket...RJS30181- SKU:
- RJS30181
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- MFG Part #:
- 30181
$38.69 -
RJS D-Ring Fuel Cell Cap Only Vented 30164
RJS SAFETY
$34.50A quality fuel cell cap isn't just a safety component—it's critical infrastructure for any serious racing setup. The RJS D-Ring Fuel Cell Cap ensures a secure, vented seal that prevents fuel sloshing and maintains proper pressure during high-G cornering...RJS30164- SKU:
- RJS30164
- Availability:
- Ships Same Business Day
- Weight:
- 0.79 LBS
- MFG Part #:
- 30164
$34.50 -
Replacement Cap for C/T Cells 7032C
RCI
$21.99A fuel cell cap isn't just a detail—it's a critical seal between your fuel system and the track. This replacement cap for RCI C/T Cells ensures a secure, leak-free connection while maintaining the integrity of your fuel cell under high-performance...RCI7032C- SKU:
- RCI7032C
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- MFG Part #:
- 7032C
$21.99 -
Flush Mount Cap Only 7031A
RCI
$27.99A properly sealed fuel cell is non-negotiable for any serious race setup or high-performance build. This flush-mount cap eliminates exposed filler necks that can snag on harnesses, catch debris, or compromise aerodynamics. The twist-on design provides...RCI7031A- SKU:
- RCI7031A
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- MFG Part #:
- 7031A
$27.99 -
Cap Flush Mount Black Plastic 12-Bolt 7030A
RCI
$39.99A properly sealed fuel cell is non-negotiable for both safety and performance—this flush-mount cap assembly delivers a reliable, leak-free seal that won't snag on anything in a tight engine bay. The 12-bolt flange design provides secure,...RCI7030A- SKU:
- RCI7030A
- Availability:
- Ships Same Business Day
- Weight:
- 1.60 LBS
- MFG Part #:
- 7030A
$39.99 -
JAZ Flush Mount Cap Assembly 6-Bolt 350-201-06
JAZ
$108.99A properly sealed fuel cell is non-negotiable for safety and performance—this JAZ flush mount cap assembly delivers a leak-free, race-proven design that sits flush with your tank for a clean installation. The twist-on mechanism combined with a secure...JAZ350-201-06- SKU:
- JAZ350-201-06
- Availability:
- Ships Same Business Day
- Weight:
- 0.93 LBS
- MFG Part #:
- 350-201-06
$108.99 -
JAZ Repl. Flush Mount Cap 340-200-06
JAZ
$60.99A fuel cell filler cap is a critical safety component that seals your fuel system while managing internal pressure during high-performance driving. This JAZ replacement cap features a vented positive-lock design that prevents fuel sloshing and ensures a...JAZ340-200-06- SKU:
- JAZ340-200-06
- Availability:
- Ships Same Business Day
- Weight:
- 0.37 LBS
- MFG Part #:
- 340-200-06
$60.99 -
JAZ Dragster Filler Cap 340-025-03
JAZ
$24.99A secure fuel cell filler cap is non-negotiable in drag racing—fuel sloshing or leaking during hard acceleration costs you consistency and safety. The JAZ Dragster Filler Cap delivers a reliable twist-lock design that keeps your fuel exactly where it...JAZ340-025-03- SKU:
- JAZ340-025-03
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- MFG Part #:
- 340-025-03
$24.99 -
Fuel Safe 2.25in Non-Vented Filler Cap FC225
FUEL SAFE
$84.99A secure fuel cell filler cap is essential for any serious racing or high-performance build—fuel sloshing during hard acceleration or cornering can compromise both safety and engine tuning consistency. The Fuel Safe FC225 delivers a no-nonsense solution...FUEFC225- SKU:
- FUEFC225
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- MFG Part #:
- FC225
$84.99 -
Allstar Performance Red Anodized Aluminum Fuel Cell Cap with Raised Neck ALL40135
ALLSTAR PERFORMANCE
$42.99Keep your fuel system clean, efficient, and race-ready with the Allstar Performance Red Anodized Aluminum Fuel Cell Cap (ALL40135). Crafted from premium billet aluminum with a bold red anodized finish, this cap combines rugged durability with sharp looks...ALL40135- SKU:
- ALL40135
- Availability:
- Ships Same Business Day
- Weight:
- 0.56 LBS
- MFG Part #:
- ALL40135
$42.99 -
Allstar Performance Fuel Cell Cap and Bung JAZ 6-Bolt Red ALL40134
ALLSTAR PERFORMANCE
$97.99Keep your fuel system secure and race-ready with the Allstar Performance ALL40134 Fuel Cell Cap and Bung — built tough for serious competitors who demand reliability under pressure. The bold red anodized aluminum finish doesn't just look great; it adds a...ALL40134- SKU:
- ALL40134
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- MFG Part #:
- ALL40134
$97.99 -
Holley Alm Fuel Cell Cap & Bung w/6 Bolt Flange 241-226
HOLLEY
$142.95A properly sealed fuel cell is non-negotiable in racing and high-performance builds. The Holley ALM Fuel Cell Cap & Bung with 6-bolt flange provides a secure, leak-proof seal while maintaining easy access for fuel servicing. This complete kit eliminates...HLY241-226- SKU:
- HLY241-226
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
$142.95Qty in Cart: 0Quantity:Price:$142.95Subtotal: -
Fuel Safe Filler Cap FC250C
FUEL SAFE
$87.99A secure fuel cell filler cap is critical for maintaining system integrity during high-performance driving, preventing fuel spillage, contamination, and pressure loss during acceleration and cornering. The Fuel Safe FC250C delivers a reliable,...FUEFC250C- SKU:
- FUEFC250C
- Availability:
- Ships Same Business Day
- Weight:
- 0.12 LBS
- MFG Part #:
- FC250C
$87.99Qty in Cart: 0Quantity:Price:$87.99Subtotal:
