Cap and Plug Fittings
Circle Track Cap and Plug Fittings at JJ Motorsports
Cap and plug fittings are essential when sealing lines or unused ports to prevent leaks and maintain pressure. These durable plugs safeguard your fluid systems during storage or between races. Integrate them with other high-quality fluid line components for a dependable racing setup.
Shop trusted brands like Allstar Performance for plastic kits and Fragola for high-flow options. Explore related categories such as Circle Track Fittings and Plugs for complete fluid system solutions or Circle Track Hoses for matching lines.
Top Circle Track Cap and Plug Fittings
- Rear End Quick Change Fitting for Filler Tank – Aluminum, Black – Upgrade your quick change rear end setup with this fitting, designed for seamless connection to a filler tank. Made from lightweight aluminum and anodized in black, this fitting replaces the side bell inspection plug.
- Allstar Performance Plastic Plug Kit ALL50810 – AN Dust Plug 3 AN-16 AN Plastic Red Kit.
- Allstar Performance Plastic Cap Kit ALL50800 – AN Dust Cap 3 AN-16 AN Plastic Red Kit.
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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Fragola #16 Flare Cap 492916
FRAGOLA
$11.99Proper hydraulic and fuel line termination is critical when building or maintaining high-performance systems—improper caps lead to contamination, pressure loss, and potential system failure. The Fragola #16 Flare Cap 492916 provides a dependable,...FRG492916- SKU:
- FRG492916
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- MFG Part #:
- 492916
$11.99 -
Fragola #12 Flare Cap Black 492912-BL
FRAGOLA
$10.99Properly sealed hydraulic and fuel line connections are critical to system integrity and safety in high-performance applications. This Fragola #12 flare cap provides a reliable, protective closure for AN fittings when lines aren't in active use,...FRG492912-BL- SKU:
- FRG492912-BL
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- 492912-BL
$10.99 -
Fragola #12 Flare Cap 492912
FRAGOLA
$9.99Proper fluid line termination is non-negotiable in high-performance racing systems, and the Fragola #12 Flare Cap 492912 delivers the reliability you need to prevent leaks and maintain system integrity under pressure. Whether you're building a custom...FRG492912- SKU:
- FRG492912
- Availability:
- Ships Same Business Day
- Weight:
- 0.12 LBS
- MFG Part #:
- 492912
$9.99 -
Fragola #10 Flare Cap Black 492910-BL
FRAGOLA
$8.49A #10 flare cap is an essential fitting for any serious hydraulic or fuel line system—it seals and protects your AN fittings from contamination and fluid loss. Whether you're building a custom fuel system, brake lines, or a high-pressure hydraulic setup,...FRG492910-BL- SKU:
- FRG492910-BL
- Availability:
- Ships Same Business Day
- Weight:
- 0.07 LBS
- MFG Part #:
- 492910-BL
$8.49 -
Fragola #10 Flare Cap 492910
FRAGOLA
$8.99A quality flare cap is essential for protecting your fuel, coolant, or hydraulic lines from contamination and preventing fluid loss during high-performance driving. The Fragola #10 Flare Cap offers reliable sealing on 10 AN fittings with the durability...FRG492910- SKU:
- FRG492910
- Availability:
- Ships Same Business Day
- Weight:
- 0.09 LBS
- MFG Part #:
- 492910
$8.99 -
Fragola #8 Flare Cap Black 492908-BL
FRAGOLA
$5.99A quality AN fitting cap is essential for maintaining system integrity and preventing contamination in your fuel, coolant, or brake lines. The Fragola #8 Flare Cap delivers reliable sealing with aerospace-grade construction, ensuring your...FRG492908-BL- SKU:
- FRG492908-BL
- Availability:
- Ships Same Business Day
- Weight:
- 0.07 LBS
- MFG Part #:
- 492908-BL
$5.99 -
Fragola #8 Flare Cap 492908
FRAGOLA
$6.49Proper hose termination is critical in any high-performance fuel, coolant, or brake system—a leaking cap can compromise your entire circuit. The Fragola #8 Flare Cap 492908 provides a reliable, anodized aluminum solution for sealing 8 AN lines with...FRG492908- SKU:
- FRG492908
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- MFG Part #:
- 492908
$6.49 -
Fragola #6 Flare Cap Black 492906-BL
FRAGOLA
$3.49A quality cap fitting is essential for maintaining system integrity in any high-performance fuel or fluid line setup. This Fragola #6 flare cap prevents contamination and fluid loss while delivering the reliable sealing performance expected in...FRG492906-BL- SKU:
- FRG492906-BL
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- MFG Part #:
- 492906-BL
$3.49 -
Fragola #6 Flare Cap 492906
FRAGOLA
$3.19A quality flare cap is essential for protecting your -6 AN fuel, oil, or coolant lines from contamination and preventing fluid loss during high-performance operation. The Fragola #6 Flare Cap delivers reliable sealing with precision-machined...FRG492906- SKU:
- FRG492906
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- MFG Part #:
- 492906
$3.19 -
Fragola #4 Flare Cap Black 492904-BL
FRAGOLA
$3.49Proper hydraulic and fluid line termination is essential for system reliability and safety in high-performance applications. This black anodized aluminum cap seals #4 AN fittings with precision, preventing fluid loss and contamination while maintaining a...FRG492904-BL- SKU:
- FRG492904-BL
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- MFG Part #:
- 492904-BL
$3.49 -
Fragola #3 Flare Cap Black 492903-BL
FRAGOLA
$3.49A quality flare cap is essential for protecting your fluid lines from contamination and preventing leaks at critical connection points. This Fragola #3 flare cap delivers the reliability you need in high-performance applications, whether you're running...FRG492903-BL- SKU:
- FRG492903-BL
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- MFG Part #:
- 492903-BL
$3.49 -
Fragola Inlet Plug 7/8-20 Blank Black 491980-BL
FRAGOLA
$11.99When you're building or maintaining a high-performance fuel system, hydraulic line, or pneumatic circuit, you need reliable blanking solutions that won't compromise system integrity. This Fragola inlet plug seals off unused 7/8-20 ports with...FRG491980-BL- SKU:
- FRG491980-BL
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MFG Part #:
- 491980-BL
$11.99 -
Fragola #8 Port Plug 3/4-16 Black w/ 1/8 FPT Port 481428-BL
FRAGOLA
$9.49If you're running a custom fuel system, oil cooler, or any pressurized line setup, you need reliable adapter solutions that won't leak under boost. The Fragola #8 Port Plug gives you a clean way to cap off unused AN ports while maintaining a professional...FRG481428-BL- SKU:
- FRG481428-BL
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- MFG Part #:
- 481428-BL
$9.49 -
Fragola #16 Port Plug 1-5/16-12 Black 481416-BL
FRAGOLA
$12.99If you're building a high-performance fuel or fluid system, port plugs are non-negotiable—they seal unused ports and prevent leaks that can compromise your engine bay. This Fragola #16 port plug delivers the reliability you need with a straightforward...FRG481416-BL- SKU:
- FRG481416-BL
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- MFG Part #:
- 481416-BL
$12.99 -
Fragola #12 Port Plug 1-1/16-12 Black 481412-BL
FRAGOLA
$10.99When building or maintaining a high-performance fuel, oil, or coolant system, reliable port plugs are essential to prevent leaks and maintain system integrity. The Fragola #12 Port Plug delivers precision engineering with a secure hex-head design that...FRG481412-BL- SKU:
- FRG481412-BL
- Availability:
- Ships Same Business Day
- Weight:
- 0.12 LBS
- MFG Part #:
- 481412-BL
$10.99 -
Fragola #10 Port Plug 7/8-14 Black 481410-BL
FRAGOLA
$8.49A reliable port plug is essential for any high-performance fuel system or hydraulic setup where you need to safely seal unused AN ports without compromising system integrity. This Fragola #10 port plug delivers the durability and leak-free performance...FRG481410-BL- SKU:
- FRG481410-BL
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- MFG Part #:
- 481410-BL
$8.49 -
Fragola #10 Port Plug 7/8-14 481410
FRAGOLA
$5.99A quality port plug is essential for any high-performance fuel system or hydraulic line setup—it keeps your system sealed, prevents fluid loss, and maintains system integrity under pressure. This Fragola #10 plug delivers reliable sealing with a proven...FRG481410- SKU:
- FRG481410
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- 481410
$5.99 -
Fragola #8 Port Plug 3/4-16 Black 481408-BL
FRAGOLA
$5.49Properly sealed AN fittings are non-negotiable in high-performance fuel and fluid systems—any leak compromises both safety and reliability. This Fragola #8 port plug delivers a secure, leak-free closure for unused 8 AN ports with its precision hex-head...FRG481408-BL- SKU:
- FRG481408-BL
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- MFG Part #:
- 481408-BL
$5.49 -
Fragola #8 Port Plug 3/4-16 481408
FRAGOLA
$5.49A quality port plug is essential for a clean, leak-free hydraulic or fuel system—especially in high-performance applications where any compromise can lead to costly failures. The Fragola #8 Port Plug delivers reliable sealing with its male O-ring design,...FRG481408- SKU:
- FRG481408
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- 481408
$5.49 -
Fragola #6 Port Plug 9/16-18 Black 481406-BL
FRAGOLA
$3.99A clean, reliable port closure is essential when you're running custom fuel or coolant lines in a high-performance build. The Fragola #6 Port Plug eliminates the need for improvised solutions, providing a precise, leak-free seal that won't compromise...FRG481406-BL- SKU:
- FRG481406-BL
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MFG Part #:
- 481406-BL
$3.99
