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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Aeroquip #6 Alm Flare Plug FCM3714
AEROQUIP
$9.69Keep your fluid lines sealed and protected with the Aeroquip #6 Aluminum Flare Plug FCM3714 — a must-have for any serious build or maintenance job. Crafted from lightweight aluminum with a sleek blue anodized finish, this plug delivers reliable...AERFCM3714- SKU:
- AERFCM3714
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- MFG Part #:
- FCM3714
$9.69 -
Aeroquip #4 Alm Flare Plug FCM3713
AEROQUIP
$5.59Keep your AN fittings sealed and leak-free with the Aeroquip #4 Aluminum Flare Plug (FCM3713) — a must-have for any serious build or track car. Machined from lightweight aluminum with a brilliant blue anodized finish, this plug looks as good as it...AERFCM3713- SKU:
- AERFCM3713
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- MFG Part #:
- FCM3713
$5.59 -
Aeroquip #6 Steel Flare Plug FCM3703
AEROQUIP
$6.09Keep your AN fittings sealed and protected with the Aeroquip #6 Steel Flare Plug FCM3703 — a rock-solid solution for capping off unused ports in your fuel, oil, or hydraulic lines. Built from durable steel with a zinc oxide finish, this plug delivers...AERFCM3703- SKU:
- AERFCM3703
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- MFG Part #:
- FCM3703
$6.09 -
Aeroquip 3/8in Pipe Plug FCM3687
AEROQUIP
$5.29When it comes to reliable sealing solutions, the Aeroquip 3/8in Pipe Plug FCM3687 delivers both performance and style in one sleek package. Built tough for real-world demands, this plug is a go-to choice for professionals and weekend warriors alike...AERFCM3687- SKU:
- AERFCM3687
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- MFG Part #:
- FCM3687
$5.29 -
Aeroquip 1/4in Pipe Plug FCM3686
AEROQUIP
$9.99Keep your fluid systems sealed tight and looking sharp with the Aeroquip FCM3686 Pipe Plug — a precision-crafted solution built for performance enthusiasts who refuse to compromise on quality or style. The striking blue anodized finish doesn't just turn...AERFCM3686- SKU:
- AERFCM3686
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- MFG Part #:
- FCM3686
$9.99 -
Aeroquip 1/8in Pipe Plug (Pair) FCM3685
AEROQUIP
$7.99Keep your fluid systems sealed tight and looking sharp with the Aeroquip FCM3685 1/8in Pipe Plug Pair. Crafted from lightweight aluminum with a striking blue anodized finish, these plugs are built for performance enthusiasts who refuse to sacrifice style...AERFCM3685- SKU:
- AERFCM3685
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- MFG Part #:
- FCM3685
$7.99 -
Aeroquip 1/16in Pipe Plug FCM3684
AEROQUIP
$9.99Keep your fluid systems sealed tight and looking sharp with the Aeroquip FCM3684 Pipe Plug — a precision-crafted solution built for performance enthusiasts who refuse to compromise on quality. The striking blue anodized finish not only adds a clean,...AERFCM3684- SKU:
- AERFCM3684
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- MFG Part #:
- FCM3684
$9.99 -
Aeroquip #12 Steel Cap FCM3605
AEROQUIP
$14.49Keep your AN fittings protected and leak-free with the Aeroquip #12 Steel Cap (FCM3605). Built tough from solid steel, these caps are the perfect solution for sealing off unused ports and protecting your fittings during storage, shipping, or installation...AERFCM3605- SKU:
- AERFCM3605
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- MFG Part #:
- FCM3605
$14.49 -
Aeroquip #10 Steel Cap FCM3604
AEROQUIP
$36.99Keep your AN fittings protected and your hydraulic or fuel system contaminant-free with the Aeroquip #10 Steel Cap FCM3604. Built tough from durable steel, these caps are a simple yet essential solution for capping off unused ports and protecting threads...AERFCM3604- SKU:
- AERFCM3604
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- MFG Part #:
- FCM3604
$36.99 -
Aeroquip #8 Steel Cap FCM3603
AEROQUIP
$13.49Keep your AN fittings protected and your build looking clean with the Aeroquip #8 Steel Cap (FCM3603). These rugged steel caps are built to seal off unused ports and fittings, preventing contamination and fluid loss during storage or installation. A...AERFCM3603- SKU:
- AERFCM3603
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
- MFG Part #:
- FCM3603
$13.49 -
Aeroquip #6 Steel Cap FCM3602
AEROQUIP
$8.79Keep your AN fittings protected and contamination-free with the Aeroquip #6 Steel Cap FCM3602 — a must-have for any serious builder or racer. These rugged steel caps snap on securely to seal off unused ports, preventing dirt, debris, and moisture from...AERFCM3602- SKU:
- AERFCM3602
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- FCM3602
$8.79Qty in Cart: 0Quantity:Price:$8.79Subtotal: -
Aeroquip `-20 Steel AN Tube Cap FCM3567
AEROQUIP
$19.49Keep your AN fittings protected and leak-free with the Aeroquip -20 Steel AN Tube Cap (FCM3567). Built tough for serious applications, this cap delivers a reliable seal that shields your lines from contamination and damage during storage or maintenance...AERFCM3567- SKU:
- AERFCM3567
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- MFG Part #:
- FCM3567
$19.49Qty in Cart: 0Quantity:Price:$19.49Subtotal: -
Aeroquip #4 Steel Cap FCM3480
AEROQUIP
$10.99Keep your AN fittings protected and your build looking clean with the Aeroquip #4 Steel Cap FCM3480. These rugged little caps are a must-have for any serious builder, shielding unused ports from dirt, debris, and corrosion. Grab a set and have peace of...AERFCM3480- SKU:
- AERFCM3480
- Availability:
- Ships Same Business Day
- Weight:
- 0.17 LBS
- MFG Part #:
- FCM3480
$10.99 -
Aeroquip `-10 Aluminum Dust Plug 12pk FBM3658
AEROQUIP
$8.99Protecting your AN fittings from contamination is critical when building or maintaining a high-performance fuel, oil, or coolant system. These Aeroquip dust plugs seal off unused -10 AN ports, preventing dirt, moisture, and debris from compromising your...AERFBM3658- SKU:
- AERFBM3658
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- MFG Part #:
- FBM3658
$8.99 -
Aeroquip `-8 Aluminum Dust Plug 20pk FBM3657
AEROQUIP
$10.99Protecting your AN fittings from contamination is essential when building or maintaining high-performance fuel and fluid systems. These Aeroquip dust plugs prevent debris, moisture, and dirt from entering your -8 AN ports during storage, transport, or...AERFBM3657- SKU:
- AERFBM3657
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- MFG Part #:
- FBM3657
$10.99 -
Aeroquip `-12 Aluminum Dust Cap 10pk FBM3652
AEROQUIP
$8.99Dust caps protect your -12 AN fittings from contamination, moisture, and debris when lines are disconnected or stored. Whether you're running a dedicated race car or maintaining a high-performance engine bay, proper fitment protection extends the life of...AERFBM3652- SKU:
- AERFBM3652
- Availability:
- Ships Same Business Day
- Weight:
- 0.07 LBS
- MFG Part #:
- FBM3652
$8.99 -
Aeroquip `-10 Aluminum Dust Cap 12pk FBM3651
AEROQUIP
$8.99Protect your high-pressure AN fittings from contamination and corrosion with these CNC-quality aluminum dust caps. A single lost cap can compromise system integrity during storage or transport—this 12-pack ensures you're always prepared for multiple...AERFBM3651- SKU:
- AERFBM3651
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- MFG Part #:
- FBM3651
$8.99 -
Aeroquip `-8 Aluminum Dust Cap 20pk FBM3650
AEROQUIP
$11.99Protect your AN fittings from contamination and corrosion with Aeroquip's aluminum dust caps. These lightweight caps prevent moisture, dirt, and debris from entering your fuel, oil, or coolant lines during storage, transport, or assembly—critical for...AERFBM3650- SKU:
- AERFBM3650
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- MFG Part #:
- FBM3650
$11.99 -
Aeroquip `-6 Aluminum Dust Cap 20pk FBM3649
AEROQUIP
$8.99Protect your AN fittings from contamination and corrosion with these precision-engineered aluminum dust caps. Whether you're building a high-pressure fuel system or custom hydraulic lines, keeping debris out of your fittings is non-negotiable for...AERFBM3649- SKU:
- AERFBM3649
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- MFG Part #:
- FBM3649
$8.99 -
Aeroquip `-4 Aluminum Dust Cap 20pk FBM3648
AEROQUIP
$10.99Aeroquip dust caps are essential protection for -4 AN fittings when lines are disconnected or stored. These aluminum caps prevent contamination from dirt, moisture, and debris that can compromise hydraulic fluid integrity and damage precision fuel system...AERFBM3648- SKU:
- AERFBM3648
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- MFG Part #:
- FBM3648
$10.99
